Our Publications -- : Center for Non Destructive Evaluation ---

Journal Paper /Conference Paper

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)

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).

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).

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)

S. Chandrasekaran, A. Muralidharan,K.Balasubramaniam, C. V. Krishnamurthy, An Impact Echo Array Technique for Concrete Structure NDT, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

E. Kannan, B. Maxfield, and K.Balasubramaniam, “Magnetostrictive Acoustic Transducer Based Torsional Wave Generation in Pipes Using Magnetic Tapes,” Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

V. V. Janapati, C. V. Krishnamurthy, and K.Balasubramaniam, “Inversion of Measured Oblique Incidence Ultrasonic Velocities: A Genetic Algorithm Based Approach” Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

S. Khare, M.Razdan, P. Munshi, B. V. Soma Sekhar, K.Balasubramaniam, ”Defect Detection in Carbon Fiber Composites Using Lamb Wave Tomographic Methods”, in press, Research in Nondestructive Evaluation (2007)

V. S. K. Prasad, K.Balasubramaniam, E. Kannan, and K. L Geisinger “Viscosity Measurements of Melts at High Temperatures using Ultrasonic Guided Waves”, in press Int. J. Materials Processing Technology (2007)

A. Krishnamurthy, C.V. Krishnamurthy, and K. Balasubramaniam, A Simulation Tool for Ultrasonic Inspection, Journal of the Korean Society for Nondestructive Testing 26(3) 153-161 (2006).

P. Padma Kumar, K.Balasubramaniam and C. V. Krishnamurthy, Determination of Transmission Spectra using Ultrasonic NDE, Trans. Indian Institute of Metals, 59( 2) 181-184 (2006)

J. Ezhil, K.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 K. 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, P Padmakumar, K.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, K.Balasubramaniam and Lakshmana Rao, C, “Development of an Advanced Ultrasonic TOFD System”, Journal of Non-Destructive Testing & Evaluation, 3(2004) 24-32.

K.Balasubramaniam, “Long range cylindrically guided ultrasonic wave technique for inspection,” J. of Korean Society of Nondestructive Testing, 23(4) 364-371, (2003)

Kowsika MVSLN, Mantena PR, K.Balasubramaniam, Energy absorption and dissipation characteristics of pultruded glass-graphite/epoxy hybrid composite beams”, Journal of Thermoplastic Composite Materials, 15 (3): 227-252 (2002)

K.Balasubramaniam, “Long range cylindrically guided ultrasonic wave technique for inspection,” J. of Nondestructive Testing and Evaluation, 1(1), 45-50, (2002)

K.Balasubramaniam and G. Jothinathan, “Reflection and Transmission of Ultrasonic Waves, Back to Basics,” J. of Nondestructive Testing and Evaluation, ******* (2000)

Costley, R. D., C. Winstead, V.V. Shah, K.Balasubramaniam, and J. P. Singh“ Laser Ultrasound Measurement of Viscosity,” J. Acoust. Society of Am.. 105(3) 1630-37 (1999)

Balasubramaniam, K., 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)

Rose, J. L., Pilarski, A., Balasubramaniam, K., 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)

Balasubramaniam, K., "Guided Plate Waves and Reflection Factor for NDE of Composite Materials," Thesis, Drexel University, March, (1989).

C. Ramadas, Krishnan Balasubramaniam, M. Joshi and C V Krishnamurthy. “A Quick Lamina Chracterisation using Lamb Waves and ANN” Proceedings of International Conference on Smart Material, Structures and Systems, 24th – 26th July 2008, IISc, Bangalore, India

J. Vishnuvardhan, A. Muralidharan, C. V. Krishnamurthy, and K. Balasubramaniam, Self Calibrated STMR Array for Material Characterization and SHM of Orthotropic Plates AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 28 (2009)

K. Thimmavajjula, K. Balasubramaniam and E. Kannan, Experimental Issues in the Measurement of Nonlinearity Parameter from Static Displacement (DC Component) Generation Experiments AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 28 (2009)

G. M. S. Reddy, C. V. Krishnamurthy, and K. Balasubramaniam, Assessment of Pulse Echo Response of Flat Bottom Holes Through Curved Interfaces Using the Patch Element Model AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 28 (2009)

P. Karthikeyan, C. Ramdas, K. Balasubramaniam and M. C. Bhardwaj, Non-Contact Ultrasound Based Guided Lamb Waves for Composite Structure Inspection: Some Interesting Observations AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 28 (2009)

C. Jayaraman, C. V. Krishnamurthy, and K. Balasubramaniam , Higher Order Modes Cluster (HOMC) Guided Waves – A New Technique for NDT Inspection AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 28 (2009).

K. Balasubramaniam and K. Viswanathan, An Ultrasonic Inverse Modeling Approach for Simultaneous Measurement of Density and Viscosity of Fluids AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 27 (2008)

K. Balasubramaniam, Ch. Kiran Kumar, B. Maxfield Tone Burst Eddy Current Thermography (TBET) AIP Conference Proceedings, Rev. of Prog. QNDE (Ed. D. Thompson and D.E. Chimenti) Vol. 27 (2008)J.

P. P. Kumar, B. V. Somasekhar, C. V. Krishnamurthy, and K. Balasubramaniam, “In-Situ Damage Detection in Plate Structures Using PWAS and Noncontact Laser Doppler, Velocimeter Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

C. V. Krishnamurthy, C. Sridharan, and K. Balasubramaniam “The 2006 Ultrasonic Benchmark Problem – FDTD Simulations in 2D” Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

E. Kannan, B. Maxfield, and K. Balasubramaniam, “Magnetostrictive Acoustic Transducer Based Torsional Wave Generation in Pipes Using Magnetic Tapes,” Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

V. V. Janapati, C. V. Krishnamurthy, and K. Balasubramaniam, “Inversion of Measured Oblique Incidence Ultrasonic Velocities: A Genetic Algorithm Based Approach” Review of Quantitative Nondestructive Evaluation, American Institute of Physics, Vol. 25, ed. by D. O. Thompson and D. E. Chimenti, pp. ****, (2007)

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.

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.

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, 7th - 9th Dec 2006.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.

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.

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..

G. Swamy and Krishnan Balasubramaniam, Directional Filter Bank for NDE Image Segmentation, AIP Conf. Proc. 760, 744 (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)

B V Soma Sekhar*, “Structural Health Monitoring of Composite Plate Structures using Lamb wave Tomography”, Poster Presentation at International Workshop on Computerized Tomography, 13th – 15th Feb 2004, IIT-KANPUR, India.

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)

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)

NDE2002? 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)

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, 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).

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)

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).

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).

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).

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. Chi¬menti), 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).

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 Evalua¬tion 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).

Balasubramaniam, K., Issa, C., and Alluri, S., "Ultrasonic Wave Propagation Studies in Anisotropic Plates With Built-In Material Degradation," Review of Progress in Quantitative Nondestructive Evaluation, (Ed. D.O. Thompson and D. E. Chimenti, Plenum Press, N.Y), Vol. 12B, pp. 1375-1382, (1993).

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).