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  ◊ PUBLICATIONS
 
   
2009

  • S.K. Nath, Krishnan Balasubramaniam, C.V. Krishnamurthy and B.H. Narayana, An Ultrasonic Time of Flight Diffraction Technique for Characterization of Surface-Breaking Inclined Cracks, Materials Evaluation, 67(2), 141-148 (2009)
 
  • S.K.Nath, Krishnan Balasubramaniam, C.V.Krishnamurthy, B.H.Narayana, Detection and sizing of defects in complex geometry weld by manual ultrasonic Time of Flight Diffraction (TOFD) inspection, ASME Trans. J. of Pressure Vessel Technology, accepted (2009)
 
  • S.K.Nath, Krishnan Balasubramaniam, C.V.Krishnamurthy, B.H.Narayana Reliability Analysis of manual ultrasonic Time of Flight Diffraction (TOFD) based inspection method for complex geometry components NDT & E International (in press, available online) (2009).
 
  • N. Biju, N. Ganesan, C.V. Krishnamurthy, Krishnan Balasubramaniam, Frequency Optimization for Eddy Current Thermography NDT & E International (in press, available online) (2009).
 
  • S.K.Nath, Krishnan Balasubramaniam, C.V.Krishnamurthy, B.H.Narayana Reliability Analysis of manual ultrasonic Time of Flight Diffraction (TOFD) based inspection method for characterization of inclined cracks accepted Materials Evaluation, (2009)
 

  • P. Karthikeyan, M.C. Bharadwaj, and Krishnan Balasubramaniam, Non-Contact Ultrasonic Sensors for Process Measurements in Composite Fabrication, J. Nondestructive Testing & Evaluation, accepted (2009)
 
  • C. Ramadas, Krishnan Balasubramaniam, M. Joshi and C V Krishnamurthy Guided Lamb Wave Chracterisation of Composite Materials using Artificial Neural Network J. Nondestructive Testing & Evaluation, accepted (2009).
 
  • L. Satyanarayan, Anish Kumar, T. Jayakumar, C.V. Krishnamurthy, Krishnan Balasubramaniam, Baldev Raj, “Sizing Cracks in Power Plant Components using Array Based Ultrasonic Techniques” accepted for publication in the J of Non-Destructive Evaluation (2009).
 
  • S.K.Nath, Krishnan Balasubramaniam, C.V.Krishnamurthy, B.H.Narayana Development of an ultrasonic Time of Flight Diffraction (TOFD) based inspection method and its reliability analysis for characterization of surface-breaking inclined cracks, accepted Materials Evaluation, (2009).
 
2008
  • C. Ramadas, Krishnan Balasubramaniam, M. Joshi and C V Krishnamurthy Detection of Transverse Cracks in a Composite Beam Using Combined Features of Lamb Wave and Vibration Techniques in ANN Environment International Journal on Smart Sensing & Intelligent Systems, 1(4) 970-984 (2008).
 
  • Kathirvel Thiyagarajan, Krishnan Balasubramaniam, Tirunavukarasu, B.P.C.Rao, T. Jayakumar, and Baldev Raj, Detection of Corrosion Damage on Aircraft Fleet Structures, J. of Non-Destructive Testing & Evaluation, 7(1) 27-21 (2008).
 
 
  • Kathirvel Thiyagarajan, Krishnan Balasubramaniam, Tirunavukarasu, B.P.C.Rao, T. Jayakumar, and Baldev Raj, Detection of Corrosion Damage on Aircraft Fleet Structures, J. of Non-Destructive Testing & Evaluation, 7(1) 27-21 (2008).
 
  • G. V. Bhagavan, Krishnan Balasubramaniam, and C.V. Krishnamurthy, 2D Axisymmetric Finite Element Mode based studies of Eddy-Current Testing, J. of Non-Destructive Testing & Evaluation, 7(1) 15-21 (2008)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2007
 
 
 
 
  • S  Narayana Jammalamadakal, E. Kannan, Krishnan Balasubramaniam and G. Markandeyulu, “Development of a magetnetostrictive transducer for non-destructive testing of concrete structures,”Applied Phy Letters in press (2007)
 
  • Vageshwar Rao, C.V. Krishnamurthy, Krishnan Balasubramaniam, “Wall thinning Defect Estimation using Pulsed IRThermography in Transmission Mode” Nondest. Test. & Eval., accepted for publication (2007)
 
  • L. Satyanarayan, C.V.Krishnamurthy, Krishnan Balasubramaniam,"Finite Difference Time Domain Simulation of Time of Flight Diffraction Technique for Imaging and Sizing Cracks"ISIGHT. 49(12) (2007)
 
 
  • Baskaran, G, Lakshmana Rao, C, and Krishnan Balasubramaniam, "Simulation of TOFD technique using finite element method, Insight 49(11) (2007)
 
  • K. Shivaraj, Krishnan. Balasubramaniam, C.V. Krishnamurthy. and R. Wadhawan, Ultrasonic circumferential guided wave for pitting type corrosion imaging at inaccessible pipe support locations, ASME Trans. J. Pres. Vessel Tech, in press, (2007).
 
 
  • J. Vishnuvardhan, Krishnan Balasubramaniam, and C.V. Krishnamurthy Genetic algorithm based reconstruction of elastic moduli of orthotropic plates using an ultrasonic guided wave STMR SHM array Smart Materials and Structures in press available online (2007).
 
  • Krishnan Balasubramaniam, C.V. Krishnamurthy, Ramsharan R., Ultrasonic Imaging using Computed PSF  IEEE  trans. Ult. Ferro. Freq. in press (2007)
 
 
 
  • L. Satyanarayan, C. Sridhar, C.V. Krishnamurthy, Krishnan Balasubramaniam, FDTD Simulation of Ultrasonic Phased Array Technique for Imaging and Sizing of Defects in Pipes Research in NDE accepted for publication  (2007)
 
 
 
 
  • L. Satyanarayan, B. V. Soma Sekhar, Krishnan Balasubramaniam, C.V.Krishnamurthy, Ultrasonic Phased array imaging of low-velocity impact damages on multi-layered composite plates, Transactions of the Indian Institute of Metals, in press (2007)
 
  • S. Khare, M.Razdan, P. Munshi,  B. V. Soma Sekhar, Krishnan Balasubramaniam, ”Defect Detection in Carbon Fiber Composites Using Lamb Wave Tomographic Methods”, Research in Nondestructive Evaluation  18(2) 101 - 119  (2007)
 
  • V. S. K. Prasad, Krishnan Balasubramaniam, E. Kannan, and K. L Geisinger “Viscosity Measurements of Melts at High Temperatures using Ultrasonic Guided Waves”, Int. J. Materials Processing Technology available online (2007)
 
 
 
 
 
2006
  • Krishnan Balasubramaniam, and S. Sethuraman   “Ultrasonic   Interferometeric  Sensor  for  Rheological  Changes  of  Fluids” Review of Scientific Instruments 77, 084902  (2006)
 
 
 
  • Sridhar, C, A. Muralidharan, Krishnan Balasubramaniam, and C.V. Krishnamurthy, “An Impact Echo Array Technique- Simulation Studies”  Nondestr.  Test. Eval 21(3) 123-40 (2006)
 
  • J. Rajagopalan,  Krishnan Balasubramaniam, and C. V. Krishnamurthy, "A Single Transmitter Multi Receiver (STMR) PZT Array for Guided Ultrasonic Wave based Structural Health Monitoring of Large Isotropic Plate Structures", Smart Mater. Struct. 15 1190–1196 (2006)
 
  • A. Krishnamurthy, C.V. Krishnamurthy, and Krishnan Balasubramaniam, A Simulation Tool for Ultrasonic Inspection, Journal of the Korean Society for Nondestructive Testing  20(3) 153-161 (2006).
 
 
 
 
  • P. Padma Kumar, Krishnan Balasubramaniam and C. V. Krishnamurthy, Determination of Transmission Spectra using Ultrasonic NDE, Trans. Indian Institute of Metals, 59( 2) 181-184 (2006)
 
2005
  • J. Ezhil, Krishnan Balasubramaniam, and K. Prasad Rao, Inspection of Thin Welded Aluminium Plates using Ultrasonic Guided Waves, Journal of Nondestructive Evaluation and Testing 4(2) 36-41 (2005).
 
  • S. Harikrishnan, C. V. Krishnamurhty, and Krishnan Balasubramaniam, Resonance Frequency Shift in Nonlinear Hysteritic Elastic Materials and Damaged Atomic Elastic Materials, Advances in Vibration Engineering 4(4) 387-92 (2005)
 
 
 
 
  • Gokul Swamy, Krishnan Balasubramaniam, and G. Baskaran, “A Point Source CorrelationTechnique for Automated Flaw Identification and Sizing Using TOFD Inspection,” Materials Evaluation, 63(4) 425-29 (2005)
 
  • S.S.S.Reddy, Krishnan Balasubramaniam, C.V.Krishnamurthy, and M. Shankar, “Ultrasonic goniometry immersion techniques for the measurement of elastic moduli,” Composite Structures  67 3-17 (2005)
 
2004
  • Gokul  Swamy,  P  Padmakumar,  Krishnan Balasubramaniam,  C Muralidhar,  Kantha Rao,  An LMS Classifier fo Detecting  Disbonds  between  Metal-Composite  Interface  using  Ultrasonic  A – scan  Data,  J  of  Non-Destructive Testing & Evaluation, 3(3) 35-40, 2004
 
  • Baskaran, G, Krishnan Balasubramaniam,and Lakshmana Rao, C, Development of an Advanced Ultrasonic TOFD System Journal of Non-Destructive Testing & Evaluation 3 24-32 (2004).
 
 
2003
  • Krishnan Balasubramaniam, Long range cylindrically guided ultrasonic wave technique for inspection J. of Korean Society of Nondestructive Testing 23(4) 364-371 (2003)
 
2002
  • Kowsika MVSLN, Mantena PR, Krishnan Balasubramaniam, Energy absorption and dissipation characteristics of pultruded glass-graphite/epoxy hybrid composite beams Journal of Thermoplastic Composite Materials, 15 (3) 227-252 (2002)
 
  • Krishnan Balasubramaniam, Long range cylindrically guided ultrasonic wave technique for inspection J. of Nondestructive Testing and Evaluation 1(1) 45-50 (2002)
2000
  • krishnan Balasubramaniam and G. Jothinathan, “Reflection and Transmission of Ultrasonic Waves, Back to Basics,” J. of Nondestructive Testing and Evaluation, 20(3)32-39 (2000)
 
 
 
1999
 
 
  • Costley, R. D., C. Winstead, V.V. Shah, Krishnan Balasubramaniam, and J. P. Singh“ Laser Ultrasound Measurement of Viscosity,” J. Acoust. Society of Am.. 105(3) 1630-37 (1999)
1998
1997
1996
 
 
1995
  • Krishnan Balasubramaniam, R. Mantena, J. Vaughan, S. Alluri, and S. Kowsika, " Non-destructive Ultrasonic and Dynamic Vibration Characterization of Pultruded Fiber Reinforced Composites," Journal of Composites Engineering 5(12) 1433-1451 (1995)
 
1994
 
1991
1990
 
1989
 
 
  • Rose, J. L., Pilarski, A., Krishnan Balasubramaniam, Tverdokhlebov, A., and Ditri, J., "Ultrasonic Waves for the Development of an NDE Feature Matrix for Anisotropic  Media," ASME Journal of Engineering Materials  and Technology, 111  255-262 (1989)
 
  • Krishnan Balasubramaniam, "Guided Plate Waves and Reflection Factor for NDE of Composite Materials," Thesis, Drexel University, March, (1989).
1988
 

Refereed Publications :
 
2007
  • Kannan, E., Maxfield, B., Balasubramaniam, K. Magnetostrictive acoustic transducer based torsional wave generation in pipes using magnetic tapes AIP Conference Proceedings, 894, pp. 934-941. (2007)
 
  • Krishnamurthy, C.V., Mohan, K.V., Sridharan, C., Balasubramaniam, K. The 2006 ultrasonic benchmark problem - FDTD simulations in 2D AIP Conference Proceedings 894, pp. 1878-1885. (2007)
 
  • Soma Sekhar, B.V., Balasubramaniam, K., Krishnamurthy, C.V., Maxfield, B.Algorithm for health monitoring of anisotropic plates using flexible ultrasonic patches AIP Conference Proceedings, 894, pp. 1501-1508. (2007)
 
 
  • Vardhan, J.V., Krishnamurthy, C.V., Balasubramaniam, K.Material symmetries from ultrasonic velocity measurements: A genetic algorithm based blind inversion method AIP Conference Proceedings, 894, pp. 725-732 (2007)
2006
  • Balasubramaniam, K., Soma Sekhar, B.V., Vishnu Vardan, J., Krishnamurthy, C.V.Structural health monitoring of composite structures using guided lamb waves Key Engineering Materials, 321-323, pp. 759-764. (2006)
 
  • Balasubramaniam, K.Inverse models and implications for NDE Key Engineering Materials, 321-323, 6-11(2006)
 
  • Janardhan Padiyar M., Sridharan Chandrasekaran,C.V. Krishnamurthy, Krishnan  Balasubramaniam, “Simulation Of Time Reversal Acoustics Using Perfectly Matched  Layer-Finite Difference Time Domain Method”, National Symposium on Acoustics- NSA-2006, India.
 
  • Janardhan Padiyar M., Sridharan Chandrasekaran, C.V. Krishnamurthy, Krishnan Balasubramaniam., “Simulation Of Time Reversal Method For Non Line Of Sight Acoustic Source Location, 15th National Symposium on Ultrasonics NSU-XV 2006, India.
 
 
  • S. Chandrashekar, K. Balasubramaniam, and C.V. Krishnamurthy, “Hybrid Model for Ultrasonic Propagation,” International Conference on Computational Fluid Dynamics, Acoustics, Heat Transfer and Electromagnetics CFEMATCON-06, July 24-25, 2006, Andhra University, Visakhapatnam - 530003, INDIA
 
  • K. Haraprasad, C.V. Krishnamurthy, and Krishnan Balasubramaniam, “Modeling Longitudinal Guided Waves in Coaxial Cylindrical Systems with the Annular Space Filled with Fluid”, International Conference on Computational Fluid Dynamics, Acoustics, Heat Transfer and Electromagnetics CFEMATCON-06, July 24-25, 2006, Andhra University, Visakhapatnam - 530003, INDIA
 
  • P. Shakya, P. Padma Kumar, C. V. Krishnamurthy and K. Balasubramaniam, “Pulse Propagation in Axi-symmetric Waveguides: FEM Simulations and Experiments”, International Conference on Computational Fluid Dynamics, Acoustics, Heat Transfer and Electromagnetics CFEMATCON-06, July 24-25, 2006, Andhra University, Visakhapatnam - 530003, INDIA
 
 
  • Shivaraj,  K.,   Balasubramaniam,   K.,    Krishnamurthy,    C. V.,   Wadhawan.  R.,   Detection   of hidden  SCC  in  refinery  pipelines  using  ultrasonic  circumferential guided waves, International  Conference  on  Pressure  Vessels  and Piping,  OPE 2006, 7th – 9th Feb 2006, Chennai, India.
 
 
  • B. C. Ram, Kumar P. Padma, C. V. Krishnamurthy, and Krishnan Balasubramaniam, Ultrasonic Band Gaps in Periodic Stack of Plates — Simulation and Experiments, AIP Conf. Proc. 820, 1043 (2006)
 
  • Adarsh Krishnamurthy, Soumya Karthikeyan, C. V. Krishnamurthy, and Krishnan Balasubramaniam, Simultsonic: A Simulation Tool for Ultrasonic Inspection, AIP Conf. Proc. 820, 1894 (2006)
 
  • G. Baskaran, Krishnan Balasubramaniam, and C. V. Krishnamurthy, Inspection Using Shear Wave Time of Flight Diffraction (S-TOFD) Technique, AIP Conf. Proc. 820, 97 (2006)
 
  • P. P. Kumar, C. V. Krishnamurthy, and Krishnan Balasubramaniam , Elastic Constants Inversion from Ultrasonic Transmission Spectra Obtained Using a Wide Aperture PVDF Sensor, AIP Conf. Proc. 820, 1127 (2006) 
 
  • G. Baskaran, Krishnan Balasubramaniam, and C. V. Krishnamurthy, Simulation of Ultrasonic Technique Using Spectral Element Method, AIP Conf. Proc. 820, 111 (2006)
 
2005
  • Shivaraj, K.,  Balasubramaniam,   K.,    Krishnamurthy,    C. V.,  Ultrasonic  circumferential  guided   wave  technique  for  the  detection of  corrosion  in inaccessible regions of pipelines,   International      conference on Corrosion,    CORCON   2005, Chennai Trade Centre, Chennai ,28th- 30th Nov 2005.
 
 
 
  • Soma Sekhar, B.V., Balasubramaniam, K., and Krishnamurthy, C.V., Low-velocity impact damage detection in composite structures using ultrasonic guided lamb waves, International conference on Computational & Experimental Engineering and Sciences “ICCES 2005”, 1st – 6th December 2005.
 
  • G. Swamy and Krishnan Balasubramaniam, Directional Filter Bank for NDE Image Segmentation, AIP Conf. Proc. 760, 744 (2005)
 
  • R. Jaganathan, B. V. Somasekhar, Krishnan Balasubramaniam, and C. V. Krishnamurthy  Plate Waves Structural Health Monitoring of Composite Structures, AIP Conf. Proc. 760, 1802 (2005)
 
  • Baskaran, G., Lakshmana Rao, C., Balasubramaniam, K. Simulation of wave interaction with arbitrarily oriented defects in thin sections using spectral element method American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, 5, Pages 237-244, (2005) 
2004
  • Veeraraghavan Sundararaghavan1, and Krishnan Balasubramaniam,”Eddy Current Benchmark Problem 3 - Optimisation of Pipe Inspection probe Design, Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 23, ed. by D. O. Thompson and D. E. Chimenti, pp. 1574-80,(2004).
 
  • Krishnamurthy C V, and M. Shankar and Krishnan Balasubramaniam, ”Ultrasonic Benchmark Problems- Numerical and Experimental Simulations, Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 23, ed. by D. O. Thompson and D. E. Chimenti, pp. 1545-53, (2004)
 
  • Naveen V Nair, Krishnan Balasubramaniam and Sarit K Das,”A 2-D Inverse Heat Conduction Formulation For Determination Of Heat Source Characteristics From Thermal Images”, Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 23, ed. by D. O. Thompson and D. E. Chimenti, pp. 453-60, (2004)
 
  • Veeraraghavan Sundararaghavan, Krishnan Balasubramaniam, and Ramesh Babu “A multi-frequency eddy current inversion method for characterizing water jet peened aluminum alloys”, Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 23, ed. by D. O. Thompson and D. E. Chimenti, pp. 651-58, (2004)
 
  • Prabhu Rajagopalan, Krishnan Balasubramaniam, Krishnamurthy C V, and M. Shankar,” A Novel Inversion Algorithm for the Determination of Stress Gradients using Ultrasonic Raleigh Wave Dispersion,” Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 23, ed. by D. O. Thompson and D. E. Chimenti, pp. 1200-07, (2004)
2003
  • Balasubramaniam K., N. V. Nair, S. Veeraraghavan, and S. K. Das, “Modeling of Effects of Excitation Velocities on the Thermal Image Obtained for Thermosonic NDE,” AIP Conf. Proc. 657, 525 (2003)
 
  • Balasubramaniam, K, Vikram M., and M. V. Reddy, “A Comparison of Ultrasonic Wave Reflection/transmission Models from Isotropic Multi-Layered Structures by Transfer-Matrix and Stiffness-Matrix Recursive Algorithms,”AIP Conf. Proc. 657, 1095 (2003)
 
  • Srivatsan V., Krishnan Balasubramaniam, and N. V. Nair, “Artificial Neural Network Based Algorithm for Acoustic Impact Based Nondestructive Process Monitoring of Composite Products” AIP Conf. Proc. 657, 1651 (2003)
 
  • Veeraraghavan S.  and Krishnan Balasubramaniam,”Coupled Transient Thermal and Pulsed EC Modeling for NDT of Materials Subjected to Laser Based Heat Treatment”,, AIP Conf. Proc. 657, 351 (2003)
 
  • Prasad S. M., K. R. Vinu, Krishnan Balasubramaniam, and C. V. Krishnamurthy,” Imaging of defects in composite structures using guided ultrasonics,” Proc. SPIE Int. Soc. Opt. Eng. 5062, 700 (2003).
 
  • Bhat K.N., Bhattacharya E. , DasGupta A., DasGupta N., KotiReddy B.R., Rao P. R., and Balasubramaniam K., “Polysilicon piezoresistive pressure sensor using silicon-on-insulator (SOI) approach,”Proc. SPIE Int. Soc. Opt. Eng. 5062, 853 (2003)
2001
  • K. Balasubramaniam, Long Range Cylindrically Guided Ultrasonic Wave Technique for Inspection  Method, NDE2001 Lonavala, India, Best Poster award in a National level conference
 
  • Singh J. P., Krishnan Balasubramaniam, A. V. Parfenov, and R. Wiser, “Optical fiber sensors and their applications,” Proc. SPIE Int. Soc. Opt. Eng. 4417, 99 (2001)
2000
  • K. Balasubramaniam, A. Parfenov, and J. P. Singh,” Low-cost, high-response fiber-optic strain/temperature sensor with stabilization,” Proceedings of SPIE, Vol. 3945, pp.185-192 (2000).
 
  • Balasubramaniam, K., and G. Boudreaux, “ Using shear impedance reflection factor models for simulation of viscosity measurements, AIP Conf. Proc. 509, 1771 (2000)
1999
  • Balasubramaniam, K, J.P. Singh, A. Pal, B.D. Fehl, W.Jones, and A.A. Bombich, “ Calibration of a Polarimetric Fiber-Optic Sensor for Measuring Small Strains in Young Concrete,” International Conf. on Smart Structures and Systems, 7-10, July, Bangalore, India, pp. 491-98, (1999)
 
  • Balasubramaniam, K., “Wave Reflection/Transmission Analysis of Thick Multi-layered Structures using the Numerical Truncation Approximation for the Transfer Matrix Technique,” Proceeding of the ASME Noise Control and Acoustics Division, NCA-Vol. 26, pp. 279-285. (1999)
 
  • Costley, R.D., G. Boudreaux, K. Balasubramaniam, and J. A. Simpson, “Waveguide Sensor for liquid and Slurry Properties,”Review of Progress in Quantitative Nondestructive Evaluation, Vol. 18B, pp.1171-1176, (1999).
 
  • Balasubramaniam, K, V. V. Shah, G. Boudreaux, R. D. Costley, C. Menezes, and J. P. Singh, Temperature and Viscosity in-situ Sensor for Hostile Processes,” Review of Progress in Quantitative Nondestructive Evaluation, Vol. 18B, pp.1163-1170, (1999).
 
  • Wheeler, E.S., R. King, and K. Balasubramaniam, “An Artificial Neural Network as a Tool for the Inversion of Ultrasonic Dispersion Data for Material Characterization,” Review of Progress in Quantitative Nondestructive Evaluation, Vol. 18B, pp.1265-1272, (1999).
1998
  • Balasubramaniam, K. and N. S. Rao, “ Nondestructive Ply-Layup Identification for Fiber Reinforced Composites using Genetic Algorithm,” Proceeding of the ASME Noise Control and Acoustics Division, NCA-Vol. 25,  ASME, pp. 207-214, (1998)
 
  • Shah, V. V.,  K. Balasubramaniam, R. D. Costley, and J. P. Singh, “ Sensor Development for High Temperature Viscosity Measurement,” Review of Progress in Quantitative Nondestructive Evaluation, Vol. 17, pp. 853-858, (1998).
 
  • Costley, R. D.,  M. Ingham, J. Simpson, V.V. Shah and K. Balasubramaniam, “ Torsional Waveguide Sensor for Molten Materials, ” Review of Progress in Quantitative Nondestructive Evaluation, Vol 17, pp.859-860, (1998)
1997
  • Murthy, V.S.L., N. Kowsika, P. R. Mantena and K. Balasubramaniam, “ Energy absorption and dissipation characteristics of pultruded glass-graphite/epoxy hybrid composite beams,” Proc. of the ASME Noise Control and Acoustics Division, NCA-Vol. 24, pp. 99-116, (1997)
 
  • Rao, N.S., Balasubramaniam K. “Analysis and Characterization of Ply-Layup in Fiber Reinforced Composites  using Nondestructive Ultrasonic Inverse Methods,” Proc. of the ASME Noise Control and Acoustics Division, NCA-Vol. 24, pp. 161-167, (1997)
 
  • Costley, R.D., Winstead, C., Shah, V.V., Balasubramaniam, K., and Singh, J.P., “Viscosity Measurement with Laser Ultrasonics,” Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 16B, pp. 539-545, (1997).
 
  • Shah, V.V., Balasubramaniam, K., Costley, R.D., Singh, J.P., “Wave Propagation in Newtonian Fluid with Viscosity Gradients Profiles” Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 16B, pp. 107-113, (1997).
 
  • Rao, N.S., Balasubramaniam K., Ji, Y., “Genetic Algorithms for Inversion of Ultrasonic Data for the Elastic Constants Measurement in Orthotropic Material Systems,” Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 16B, pp. 1359-1366, (1997).
1996
  • Balasubramaniam, K. and Ji, Y., “Analysis of Ultrasonic Plate Wave Interaction with Multi-layered Inhomogenous Anisotropic Plates,” Proc. of the First US-Japan Symposium on Advances in NDT, June 24-28, Kahuku, Oahu, HA, pp. 216-217, (1996)
 
  • Rao, N.S., and Balasubramaniam, K., “ Genetic Algorithms for Ultrasonic Characterization of High Temperature Composite Material Properties,” Proc. of the Third International Conference on Composites Engineering, (ICCE/3), July 21-26, New Orleans, LA, pp. 89-90, (1996)
 
  • Ji, Y, Sullivan, R., and Balasubramaniam, K., “ Guided Wave Behaviour Analysis in Multi-layered Inhomogeneous Anisotropic Plates, “Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 15, pp. 217-222, (1996).
 
  • Balasubramaniam, K., Ji, Y, and Givens, T, “ Validity of the Elastic Constant Approximations for the Ultrasonic Evaluation of Multi-layered Inhomogeneous Composites, “Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),1183-1190,  Plenum Press, N.Y., Vol. 15, pp. 1183-1189, (1996).
 
  • Costley, D. R., Shah, V., Balasubramaniam, K., and Singh J. P., “ Shear Wave Wedge for Laser Ultrasonics,”Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 15, pp. 601-606, (1996).
 
  • Sullivan, R., Balasubramaniam, K., and Bennett, A. G., “ Evaluation of Adhesion Integrity in Graphite Epoxy Bonded Structures using Ultrasonic Reflection Factor Analysis,”Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 15, pp.1299-1304, 1996.
 
  • Shah, V.V., Balasubramaniam, K., Singh, J.P. and Costley, D, " Measurement of Viscosity in Liquids using Reflection Coefficient.... Phase Difference Method," Review of Progress in Quantitative Non-destructive Testing,(Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 15, pp. 2067-2071, (1996).
1995
  • Bennett, J., Balasubramaniam, K., Sullivan, R., and Bennett, G., " High Performance Scanning System to Explore Ultrasonic Oblique Wave Reflection in Composite Laminates," Review of Progress in QNDE, (Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 14, pp. 569-576, (1995).
 
  • Shah, V.V., Balasubramaniam, K., and Singh, J.P., " Effect of Surface Coatings on Generation of Laser Based Ultrasound,"Review of Progress in QNDE, (Ed. D.O. Thompson and D.E. Chimenti),  Plenum Press, N.Y., Vol. 14, pp. 2261-2268, (1995).
 
  • Balasubramaniam, K., and Ji, Y., " Guided Wave Analysis in Inhomogeneous Plates, " Review of Progress in QNDE, (Ed. D.O. Thompson and D.E. Chimenti),  Plenum Press, N.Y., Vol. 14, pp. 227-234, (1995).
1994
  • Balasubramaniam, K. and Ji, Y., "Analysis of Acoustic Energy Transmission  through Anisotropic Wave Guides using a Plane Wave Multi-layer Model," Materials For Noise and Vibration Control, (Ed. P.K.Raju and R. Gibson), NCA-Vol-18, DE-Vol-80, ASME Publisher, ISBN #0-7918-1459-8, pp.157-163. (1994)
 
  • Issa, C.A., Balasubramaniam, K., and Kanthikannan, S., "Adaptive Finite Element Modeling of Oblique Ultrasonic NDE Waves," Review of Progress in QNDE, (Ed. D.O. Thompson and D.E. Chi­menti), Plenum Press, N.Y.,Vol. 13, pp. 85-92, (1994).
 
  • Balasubramaniam, K., Issa, C.A., and Alluri, S., "Ultrasonic Wave Model for Evaluation of Interphase Properties Between Fiber and Matrix in Composite Structures," Review of Progress in QNDE, (Ed. D.O. Thompson and D.E. Chimenti),  Plenum Press, N.Y., Vol. 13, pp. 1173-1180, (1994)
 
  • Balasubramaniam, K., Issa., C.A., and Ji, Y., "Analysis of a Multi-Layered Model for Ultrasonic Evaluation of Adhesively Bonded Composite Structures," Review of Progress in QNDE, (Ed. D.O. Thompson and D. E. Chimenti), Plenum Press, N.Y., Vol. 13, pp. 1555-1562, (1994).
 
  • Sullivan, R., Balasubramaniam, K., Bennett, A.G., and Issa, C.A.,, "Experimental Imaging of Fiber Orientation in Multi-Layered Graphite Epoxy Composite Structures," Review of Progress in QNDE, (Ed. D.O. Thompson and D. E. Chimenti),  Plenum Press, N.Y., Vol. 13, pp. 1313-1320, (1994).
1993
  • Issa, C.A., Balasubramaniam, K., KanthiKannan, S., "Adaptive hp-Finite Element Simulation of Ultrasonic NDE," Dynamic Characterization of Advanced Materials, NCA-Vol 16, AMD-Vol 172, (Ed. P. K. Raju and R.F. Gibson), ISBN 0-7918-1028-3, pp.117-126,  1993.
 
  • Balasubramaniam, K., Issa, C.A., and Alluri, S., "An Expert System Based Ultrasonic Multi-Mode Anomaly Quantification Algorithm for Composite Materials," Dynamic Characterization of Advanced Materials, NCA-Vol 16, AMD-Vol 172, (Ed. P.K.Raju and R.F.Gibson), ISBN 0-7918-1028-3, pp. 99-106, (1993).
 
  • Balasubramaniam, K., Issa, C.A., and Ji, Y., "Interface Quality Evalua­tion Using Ultrasonic Methods for Adhesively Bonded Anisotropic Layered Structures," Dynamic Characterization of Advanced Materials, NCA-Vol 16, AMD-Vol 172, (Ed. P.K.Raju and R.F.Gibson),ISBN 0-7918-1028-3, pp.187-194, (1993).
 
1992
  • Issa, Camille A. and Balasubramaniam, K., "Modeling of Ultrasonic NDE:  A Case Study in p-Version Finite Element Analysis," Vibro-Acoustic Characterization of Materials and Structures, NCA-Vol. 14, ASME, pp. 85-91, (1992).
 
  • Balasubramaniam, K., and Issa, Camille A., "Multi-Layered Interface Model for the Simulation of Adhesive Bond Weakness Evaluation Using Multi-Mode Ultrasonic Techniques," Vibro-Acoustic Characterization of Materials and Structures, NCA-Vol. 14, ASME, pp. 63-72. (1992)
 
  • Balasubramaniam, K., ”Interface Characterization using Ultrasonic Dispersion Techniques," Non-Destructive Testing '92, WCNDT, San Paolo, Brazil, pp. 789-793, (1992).
 
  • Balasubramaniam, K., Issa, C.A., and Ladnier, D., "Imperfection Models and Simulations for NDE of Fiber Reinforced Composite Materials," Non-Destructive Testing '92, WCNDT, San Paolo, Brazil, pp. 789-793, (1992).
 
  • Issa, C., Balasubramaniam, K., and Liu, W.L., "P-Version Finite Element Modeling for NDE," Review for Progress in Quantitative NDE, (Eds. D.O.Thompson and D.E. Chimenti), Plenum Press, N.Y.,  Vol. 11B, pp. 2307-2314 (1992).
 
  • Balasubramaniam, K., Issa, C., and Sullivan, R., "Quantitative Evaluation of Adhesive Interface Layer Properties Using Ultrasonic Dispersion Techniques," Review for Progress in Quantitative NDE, (Eds. D.O. Thompson and D.E. Chimenti), Plenum Press, N.Y., Vol. 11B, pp. 1229-1236, (1992).
 
  • Balasubramaniam, K., Huang, Y., and Rose, J. L., "Feature Based Studies on Guided Ultrasonic Wave Modes for Anomaly Classifi­cation in Composite Structures,” Non-Destructive Characterization of Materials IV, Plenum Press, pp. 299-306, (1991).
1990
  • Balasubramaniam, K., and Rose, J. L., "Guided Plate Wave Potential for Damage Analysis of Composite Materials," Review of Progress in Quantitative, (Eds. D.O. Thompson and D.E. Chimenti), Plenum Press, N.Y., Vol. 9B,  pp. 1505-12, (1990)
 
  • Rose, J.L., Ngoc, T., Balasubramaniam, K., and Jiao, D., "Evaluation of Various Intermediate Layer Models for Ultrasonic Inspection of Weak Bonding," Review of Progress in Quantitative NDE, (Eds. D. O. Thompson and D.E. Chimenti), Plenum Press, N.Y., Vol. 9B, pp. 1309-16, (1990)
1988
  • Rose, J.L., Pilarski, A., Balasubramaniam, K., Tverdokhlebov, A., and Ditri, J., "Elements of  an Ultrasonic Feature Matrix NDE Technique Based on Bulk Waves and Anistropic  Elasticity," New Directions in the Non-Destructive Evaluation of Advanced Materials, (Ed. J.L. Rose and A.A. Tseng), MD-Vol. 9, The ASME Winter Annual Meeting, Chicago, pp. 63-72. (1988)
1988
  • Rose, J. L., Dale, J., Balasubramaniam, K., and Pilarski, A., "Oblique Incidence Feature Mapping Technique for the NDE of Adhesive Bonds," Proceedings of the ASME Winter Annual Meeting, Chicago, MD-Vol. 6, (Eds. Mall, Liechti and Vinson), pp. 79-86, (1988)
1988
  • Pilarski, A., Rose, J.L., Balasubramaniam, K., and Dale, J., "Utilization of Oblique Incidence in Acousto-Ultrasonics," Acousto-Ultrasonics: Theory and Application, (Ed. J.C. Duke, Jr.) Plenum Press, N.Y., pp. 79-92. (1988)
1987
  • Rose, J.L., Pilarski, A., Tverdokhlebov, A., Balasubramaniam, K., Dale, J., and Diprimeo, D., "Wave Scattering and Guided Wave Considerations in Anisotropic Media," Review of Progress in Quantitative NDE, (Ed. D. E. Chimenti and D.O. Thompson), Plenum Press, N.Y., Vol. 7A, pp. 85-94 (1987)
   

Conference Proceedings - Non-refereed :
2006
  • Ch. N. Kiran Kumar, C.V.Krishnamurthy, Krishnan Balasubramaniam, “Eddycurrent Transient Thermography Technique” National Conference on Nondestructive Testing 2006, 7th – 9th Dec 2006, Hyderabad, India. (2006) Best Poster award in a National level conference
 
  • B V Soma Sekhar, Saurabh Khare, Mayuri Razadan, N Jain*, K Balasubramaniam, and P Munshi, “Lamb Wave Tomographic Reconstruction Using Various MART Algorithms”, Proceedings of National seminar on Non-Destructive Evaluation, 7- 9 Dec 2006.India
 
 
  • R.Dhayalan, Bruce Maxfield and Krishnan Balasubramaniam, “Development of SV Wave Electromagnetic Acoustic Transducer (EMAT) for Weld Inspection in Stainless Steel Plate”, National Conference on Nondestructive Testing 2006, 7th – 9th Dec 2006, Hyderabad, India.
 
  • Ajith Muralidharan, Vishnu Varadhan, Krishnan Balasubramaniam, and C.V. Krishnamurthy, "Phased addition reconstruction in anisotropic media", National Conference on Nondestructive Testing 2006, 7th – 9th Dec 2006, Hyderabad, India.
 
  • L. Satyanarayan, K. V. Mohan, C.V. Krishnamurthy, K. Balasubramaniam “Finite  Difference Time Domain Simulation of Ultrasonic Phased Array for Imaging” National Conference on Nondestructive Testing 2006, 7th – 9th Dec 2006, Hyderabad, India.
2005
  • Kathirvel. T, Balasubramaniam, K., and Krishnamurthy, C.V.,  Kannan, E., and  Shanmuganathan, R.M., Development of pulsed eddy current technique for aircraft lap joint inspection, National Conference on Nondestructive Testing 2005, 2nd – 4th Dec 2005, Kolkata, India.
 
  • Shivarak.K, Balasubramaniam, K., and Krishnamurthy, C.V., and Jothinathan, G., Corrosion and crack detection in pipe support regions using ultrasonic circumferential guided wave technique, National Conference on Nondestructive Testing 2005, 2nd – 4th Dec 2005, Kolkata, India.
 
  • Jayarao, V.V.S., Kannan, E., Raghuprakash, V., Balasubramaniam, K., and Krishnamurthy, C.V., Evaluation Of The Quality Of The Welded Joints Using Non Linear Ultrasonic Technique, National Conference on Nondestructive Testing 2005, 2nd – 4th Dec 2005, Kolkata, India..
 
  • Shanmuganathan, R.M., Balasubramaniam, K., and Krishnamurthy, C.V., A comparison of microwave NDE methods for quantifying metal loss under paint for aluminium structures, National Conference on Nondestructive Testing 2005, 2nd – 4th Dec 2005, Kolkata, India.
 
2004
  • B V Soma Sekhar*, “Structural Health Monitoring of Composite Plate Structures using Lamb wave Tomography”, Poster Presentation at International Workshop on Computerized Tomography, 13– 15 Feb 2004, IIT-KANPUR, India.
2003
  • Siva Shashidhara Reddy, Krishnan Balasubramaniam, C. V. Krishnamurthy, M. Shankar and J.Vishnuvardhan,” Rapid Estimation Of Elastic Moduli Of Plates Using Ultrasonic Immersion Measurements,”, Proc. Of NDE 2003, Tiruvananthapuram, Dec 2003.
 
  • G. Bhaskaran, Gokul Samy, Krishnan Balasubramaniam, C. V. Krishnamurthy, C. Lakshmana Rao, G. Jothinathan and B. C. Bhaumick, “Automated defect sizing algorithm (ESIT and PSCT) for TOFD imaging of defects in thin sections”, Proc. Of NDE 2003, Tiruvananthapuram, Dec 2003.
 
  • Ezhil J. C.V., Krishnamurthy, K. Prasad Rao, Krishnan Balasubramaniam ,”On-line monitoring of welds using guided waves,” Proc. Of NDE 2003, Tiruvananthapuram, Dec 2003.
 
  • Krishnan Balasubramaniam and Veeraraghavan Sundararaghavan, “A multi-frequency eddy current inversion method for characterizing depth profiles in materials, “Proc. Of NDE 2003, Tiruvananthapuram, Dec 2003.
1999
  • Balasubramaniam, K, “Temperature/viscosity In-Situ Sensor for High Temperature Molten Processes,” Proc of the ASNT Spring Conference, pp. 179, Orlando, FL, March 22-26, 1999.
1997
  • Balasubramaniam, K., Costley, R., D., and Singh, J. P , “High Temperature Process Control Sensor for Viscosity Measurement,” Proc. ASNT Spring Conference and Sixth Annual Research Symposium, Houston, TX, Vol. 1, pp. 152, (1997)
 
  • Balasubramaniam, K, and Rao, N. S., ” Genetic Algorithms for the Measurement of Elastic Constants from Ultrasonic Data”Proc. ASNT Spring Conference and Sixth Annual Research Symposium, Houston, TX, Vol. 1, pp. 143, (1997)
1996
  • Balasubramaniam, K, and N.S. Rao, “"Experimental determination of material stiffness constants for advanced composites using Genetic Algorithms" Proc. of the International Conference on Experimental Mechanics-Advances and Applications, Singapore, Dec. 1996.
 
  • Balasubramaniam, K, N.S. Rao and Y. Ji, "Characterization of Material Properties of Multi-layered Fiber Reinforced Composite Structures using Inverse Ultrasonic Methods,"Trends in NDE Science and Technology, Proc. of the 14th World Conference on NDT (14th WCNDT), Dec. 8-13, New Delhi, India, pp. 733-738, 1996,
 
  • Balasubramaniam, K., "Ultrasonic Monitoring of the Pultrusion Manufacturing Process," Trends in NDE Science and Technology, Proc. of the 14th World Conference on NDT (14th WCNDT), Dec. 8-13, New Delhi, India, pp. 589-594, 1996.
 
  • Balasubramaniam, K., Shah, V.V., Costley, D., and Singh, J. P., “Viscosity Measurement using Laser Generated Ultrasonic Wave,” Proc. of the ASNT Fall Conference and Quality Testing Show, Seattle, WA, pg. 76, (1996).
 
  • Rao, N. S.  and  Balasubramaniam, K., “Genetic Algorithms for Ultrasonic Characterization of High Temperature Composite Material Properties,” Proc. of the Third International Conference on Composites Engineering, (ICCE/3), New Orleans, LA, Ed. D. Hui, pg. 89 (1996).
 
  • Balasubramaniam, K., V. V. Shah, D. Costley, and J. P. Singh, "Laser Generated Guided Ultrasonic Wave Applications in Non-destructive Evaluation," Trends in NDE Science and Technology, Proc. of the 14th World Conference on NDT (14th WCNDT), Dec. 8-13, New Delhi, India, pp. 2311-2314, 1996,
1994
 
  • Balasubramaniam, K, Mantena, R, Vaughan, J, and Alluri, S, " Characterization of Pultruded Fiber Reinforced Composites using Dynamic and Ultrasonic Methods," Proceedings of the First International Conference on Composites Engineering (ICCE/1), New Orleans, (Ed. D. Hui), pp. 35-36 (1994).
 
  • Balasubramaniam, K.  Co-Author, " Spectral Imaging of Ultrasonic Oblique Wave Scattering in Composite Laminates, " Proc. of the 40th International SAMPE Symposium and Exhibition,  Atlanta, GA, October, (1994)
 
  • Balasubramaniam, K., Singh, J.P., and Shah, V.V. "Improved Techniques for Generation of Laser Ultrasound using Tailored Surface Coatings," Proceedings of the Annual Spring Conference of American Society of Non-Destructive Testing, New Orleans, April (1994).
 
  • Balasubramaniam, K., Co-author, "Development of Real Time Low Cost High Performance Scanning Systems for Advanced Ultrasonic Imaging," Proc. of the 39th International SAMPE Symposium and Exhibition, Anaheim, CA, April 11-14, pp. 1344-1354, (1994).
 
  • Balasubramaniam, K., Bolla, S., and Issa, C.A.," Ultrasonic Assisted Removal of Suspended Water Contaminants," Proc. of the Annual Conference of the Water Resources Research Institute, Jackson, MS, March 29th, pp. 7-13, (1994).
 
1993
  • Balasubramaniam, K., Issa., C.A., Alluri, S., and Ji, Y., "Composite Material Anomaly Characterization Using Advanced Ultrasonic Meth­ods," NOISE-CON 93-Noise Control in Aeroacoustics, (Ed. Hubbard, H.H.), pp. 447-452, May (1993).
1992
  • Balasubramaniam, K., "Prototyping Composite Aircraft and Aerial Robotics Development," at the 17th Annual Southeastern Regional Conference of the Society of Allied Weight Engineers, Biloxi, MS, Oct. (1992).
 
  • Vaughn, J.G., Mantena, P.R., Donti, R.P., Lackey, E., Roux, J.A., Balasubramaniam, K., and Ladnier, D., "A Study of Material Properties Related to the Pultrusion of Graphite/Epoxy Composite Materials," Proceedings of the 8th Annual ASM/ESD Advanced Composites Conference, Chicago, IL., Novem­ber 2-5, (1992).
1991
  • Balasubramaniam, K. and Rose, J. L., "Feature Based Ultrasonic Non-Destructive Evaluation - A Review," Invited paper, Fall Conference and the 50th Anniversary of the American Society of Non-Destructive Testing, September 15-18, Boston, MA, pp. 35-37, (1991)
1990
  • Rose, J.L., Balasubramaniam, K., and Chen, G., "Feature Based Imaging for Post-factum Control,"  IEEE Proc. of Intelligent Control, THO333 - 5/90, pp. 1255-1260, (1990).
1989
  • Rose, J.L., Ngoc, T.D.K., Jiao, D., and Balasubramaniam, K., "Feature Mapping Methodology for Ultrasonic Inspection of Adhesive Bonds," Proceedings of the 17th Symposium on NDE, San Antonio, TX, April, (1989).
1989
  • Rose, J.L., Balasubramaniam, K., Pilarski, A., and Ditri, J., "The Utility of Guided Waves in the  Ultrasonic NDE of Composite  Materials," WCNDT'89, Amsterdam, Netherlands, April, (1989).
1988
  • Balasubramaniam, K., "Ultrasonic Oblique Incidence Techniques for  Adhesive  Bond Interface  Quality  Evaluation,"  Workshop on NDE of Adhesive Bonds (Publisher: NTIAC, San Antonio), (1988).
1988
  • Rose, J. L. and Balasubramaniam, K., "Ultrasonic NDE Potential in Composite Manufacturing," ASTM-EM88-541, Fabricating Comp­osites '88, September, Philadelphia, PA, (1988).
1987
  • Pilarski, A., Rose, J. L., Dale, J., Balasubramaniam, K., and Lecuru, D.,  "An Oblique Incidence Technique for Adhesive Bond Quality Evalua­tion," Proceedings of the 4th European NDT Conference, London, September,  (1987).
 
  • Pilarski, A., Rose, J. L., Balasubramaniam, K., and Lecuru, D., "Angular Characteristics  of  Reflectivity for Layered Structures with Imperfec­tions," Proceedings of the Ultrasonic International Confer­ence, London, July, pp. 114-119, (1987).
1986
  • Rose J.L., Nestleroth J,, Balasubramaniam K., and Mast P., “Ultrasonic Feature Mapping for Damage Analysis in, Composite Materials”, Materials Evaluation 44 (9) 37-37 (1986)

Presentations :
 
  • Balasubramaniam, K., "Ultrasonic  Feature Mapping  for  Damage Analysis in Composite Materials," Fall Conference of the A.S.N.T., October 3-5, New  Orleans, LA, (1986)
 
  • Balasubramaniam, K., "Ultrasonic Oblique Incidence for Degradation Determination in Graphite-Epoxy  Composites," Fall Conference of the A.S.N.T., October 5-9, Atlanta, GA. (1987)
 
  • Balasubramaniam, K., "An Oblique Incidence F-Map for Interfacial Weakness Detection of Bonded Structures," Spring Conference of the A.S.N.T., April 12-14, Orlando, FL. (1988)
 
  • Balasubramaniam, K., "New Studies on Non-Destructive Analysis for Anomalies in Graphite-Epoxy Fiber Reinforced Composites, Fall Conference of the A.S.N.T., Valley Forge, PA, Oct. (1989)
 
  • Balasubramaniam, K., "Ultrasonic Waves in Layered Structures for Adhesive Interface Quality Evaluation," Proc. of the First U.S. National Congress on Computational Mechanics, Chicago, IL, July 21-24, (1991).
 
  • Balasubramaniam, K., Issa, C., Bennett, G., and Sullivan, R., "Mu­lti-M­ode Ultrasonic Evaluation for Composite Structure Fabrica­tion Process," Proceedings of the Fall Conference and 50th Anniversary of the American Society of Non-Destructive Testing, Boston, MA., pp. 85-87, Sept. 15-18, (1991).
 
  • Balasubramaniam, K., Issa, C., and Liu, W.L., "A Novel Numerical Modeling Approach for NDE, "Proceedings of Spring Conference of ASNT, Orlando, FL, March, pp. 56-58. (1992)
 
  • Sullivan, R. and Balasubramaniam, K., "Imaging of Ply Orientation in Composite Laminates Using Ultrasonic Backscatter and Plate Wave Flow Pattern Techniques," Proceedings of the Annual Fall Conference of American Society of Non-Destructive Testing, October (1993).
 
  • Balasubramaniam, K., Mantena, R, Vaughan, J., and Nidumolu, P., "Online monitoring of the Pultrusion Manufacturing Process," Proceedings of the Annual Fall Conference of American Society of Non-Destructive Testing, Atlanta, GA, Sept. (1994).
 
  • Costley, R. D. , Vimal Shah, Christopher Winstead, Krishnan Balasubramaniam, and J.P. Singh, "Ultrasonic Viscometer for Molten Materials," 1996 Joint Fall Meeting of The American Ceramic Society and the Japanese Ceramic Society, San Antonio, TX, Oct. 30 - Nov. 2, 1996.
 
  • Balasubramaniam, K. and N.S. Rao,” Genetic Algorithms for the Measurement of Elastic Constants from Ultrasonic Data”, ASNT Spring Conference and Sixth Annual Research Symposium, Houston, TX, March 17-21, (1997)
 
  • Shah, V.V., Balasubramaniam, K., Costley, R., D., and Singh, J. P. “ High Temperature Process Control Sensor for Viscosity Measurement, ASNT Spring Conference and Sixth Annual Research Symposium, Houston, TX,, March 17-21, (1997)
 
  • Balasubramaniam, K. and N. S. Rao, “ Ply-Layup Inversion for Composites using Genetic Algorithms,” Review of Progress in Quantitative Nondestructive Evaluation, San Diego, CA, July 27-Aug 1 1997.
 
  • Singh,J. P.,  K. Balasubramaniam, A. Pal,  B.D. Fehl, F.H. Ahmad, A.A.  Bombich “Embedded Fiber Optic Sensors for Measuring Small Strains in Young Concrete, “Review of Progress in Quantitative NonDestructive Evaluation, Snowbird, UT, July 19-24, 1998.
 
  • Balasubramaniam, K, “Physical Measurements for Monitoring Hostile Processes,” ASNT fall conference, Phoenix, AZ, Oct. 12-15, 1999.

Reports :
 
  • Rose, J.L., Pilarski, A., Tverdokhlebov, A., Balasubramaniam, K., Dale, J., "Ultrasonic Wave Scattering and Characterization: Centrifu­gally Cast Stainless Steel," EPRI Report, RP2405-18, (1987).
 
  • Rose, J.L., Balasubramaniam, K., Dale J., Ditri, J., “ Improving ultrasonic inspection reliability through redundancy,” EPRI RP3148-04 Nondestructive Evaluation Research Progress in 1990 : Proceedings from the Eleventh Annual EPRI NDE Information Meeting, Charlotte, NC., Report NP-7047, Electric Power Research Institute, Palo Alto, CA, 1990.
 
  • Balasubramaniam, K., and Issa, C. A., " Development of an Ultrasonic Cavitation Assisted Technique for Cleaning Contaminated Water," U.S. Department of Interior, Report # G2028-11. August (1994).
 
  • Balasubramaniam, K., "Development of an Ultrasonic Enhanced Activated Sludge for Contaminated Water Treatment," U.S. Dept. of Interior, Report # G2028-11,  Aug.  (1995).
 

 

  
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