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Ramamurthy Prabhakaran

Ramamurthy Prabhakaran

PROFESSOR
Mechanical & Aerospace Engineering

Contact Information

238M KAUFMAN HALL
NORFOLK, VA 23529

Email: rprabhak@odu.edu

Phone: 757-683-3732

Organizational Chart

Education/Credentials

Ph.D. in Mechanical Eng., Mechanics/Materials Science, Illinois Institute of Technology, (1970)

M.E. in Machine Design, Indian Institute of Sciences, (1967)

B.S. in Mechanical Engineering, Indian Institute of Technology Madras, (1965)

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  • Articles

    Prabhakaran, R. (2011). Lightning Strikes on Metal and Composite Aircraft and Their Mitigation. Journal of Aerospace Sciences and Technologies, 63 (3), pp. 208-222.
    Prabhakaran, R., Yoon, J., Abdel-Wahab, H., and Chaturvedi, S. K. (2011). Engineering Laboratory Instruction in Virtual Environment, eLIVE. Advances in Engineering Education pp. 1-24.
    Prabhakaran, R., Saha, M., and Galloway, T. (2005). Measurement of In-Plane Elastic Moduli of Composites with A circular Disk Specimen and Piezoelectric Sensors. Polymer Composites, 26 (4), pp. 542-551.
    Prabhakaran, R., and Galloway, T. (2005). Strain Measurement in a Shape Memory Alloy with Strain Gages. Strain, 41, pp. 177-184.
    Saha, M., Prabhakaran, R., and Waters, W. A. (2004). Compressive Behavior of Pultruded composite Plates with Circular Holes. Composite Structures, 65, pp. 29-36.
    Prabhakaran, R., and Xu, H. (2001). Determination of Elastic Constants of Composites with a Circular Disk Specimen. Advanced Composites Letters, 10 (3), pp. 127-133.
    Prabhakaran, R., and Xu, H. (2001). Hole-Size effects in Pultruded Composites. Mechanics of Composite Materials, 37 (1), pp. 79-84.
    Saha, M., Prabhakaran, R., and Waters, W. A. (2000). Compressive Properties of Pultruded composites. Mechanics of Composite Materials, 36 (6), pp. 781-790.
    Prabhakaran, R. (2000). Discussion of Novel Procedure for Complete In-Plane Composite Characterization Using a Single T-Shaped Specimen. Experimental Mechanics, 40 (1), pp. 96-97.
    Scott, L. A., Prabhakaran, R., Bryant, R. G., and Buchman, A. (1997). Low-Velocity Wear Resistance of LaRC-SI and Blends Against Titanium. Polymeric Materials Science and Engineering, 77, pp. 481-484.
    Prabhakaran, R., and Piascik, R. S. (1997). A Blunt Notch Extended Compact Tension (BN-ECT) Specimen for the Study of Short and Long Crack Propagation. Experimental Techniques, 21 (2), pp. 24-26.
    Prabhakaran, R., Razzaq, Z., and Devara, S. (1996). Load and Resistance Factor Design (LRFD) Approach for Bolted Joints in Pultruded Composites. Composites: Part B, 27B, pp. 351-360.
    Razzaq, Z., Prabhakaran, R., and Sirjani, M. M. (1996). Load and Resistance Factor Design (LRFD) Approach for Reinforced-Plastic Channel Beam Buckling. Composites: Part B, 27B, pp. 361-369.
    Prabhakaran, R. (1992). Experimental Mechanics Investigations of Composites, Part I: Mechanical and Photo-Mechanical Studies. Materials Engineering, 3 (2), pp. 261-269.
    Prabhakaran, R. (1992). Experimental Mechanics Investigations of Composites, Part II: Development of Novel Test Methods. Materials Engineering, 3 (2), pp. 271-277.
    Prabhakaran, R., and Ramasamy, M. (1992). Shape Optimization for a Composite Crack-length Sensor. Experimental Techniques, 16 (5), pp. 36-38.
    Lopez, O. F., and Prabhakaran, R. (1991). Application of Strain Gages to Measure the Adhesive Strains Through the Thickness of An Adhesively Bonded Stiffened Strip. Experimental Techniques, 15, pp. 39-41.
    Prabhakaran, R., and Lopez, O. F. (1990). Application of Carbon-powder-polymer Composite as a Continuous Crack-length Sensor. Experimental Mechanics, 30, pp. 332-335.
    Prabhakaran, R. (1990). Damage Assessment Through Electrical Resistance Measurement in Graphite Fiber Reinforced Composites. Experimental Techniques, 14, pp. 16-20.
    Prabhakaran, R., and Naik, R. A. (1989). A Fiber-optic Technique to Assess the Influence of Interfacial Friction in a Pin-loaded Hole. Transactions of the Instrument Society of America, 28 (2), pp. 35-39.
    Prasad, C. B., Prabhakaran, R., and Tompkins, S. (1987). Determination of Calibration Constants for the Hole-drilling Residual Stress Measurement Technique Applied to Orthotropic Composites Ñ Part I: Theoretical Considerations. Composite Structures, 8, pp. 105-118.
    Prasad, C. B., Prabhakaran, R., and Tompkins, S. (1987). Determination of Calibration Constants for the Hole-drilling Residual Stress Measurement Technique Applied to Orthotropic Composites Ñ Part II: Experimental Evaluations. Composite Structures, 8, pp. 165-172.
    Naik, R. A., and Prabhakaran, R. (1987). Failure Modes for Polycarbonate Under Clearance-fit Pin-loading. Polymer Engineering and Science, 27 (22), pp. 1681-1687.
    Prabhakaran, R., and Naik, R. A. (1987). A Fiber-optic Technique for the Measurement of Contact Angle in a Clearance-fit Pin-loaded Hole. Experimental Techniques, 11, pp. 20-22.
    Spigel, B. S., Prabhakaran, R., and Sawyer, J. W. (1987). An Investigation of the Iosipescu and Asymmetrical Four-Point Bend Tests. Experimental Mechanics, 27, pp. 57-63.
    Prabhakaran, R., and Sawyer, J. W. (1986). A Photoelastic Investigation of Asymmetric Four Point Bend Shear Test for Composite Materials. Composite Structures, 5, pp. 217-231.
    Prabhakaran, R., and Naik, R. A. (1986). Investigation of Non-linear Contact for a Clearance-fit Bolt in a Graphite/Epoxy Laminate. International Journal of Composite Structures, 6 (1-3), pp. 77-85.
    Prabhakaran, R., and Naik, R. A. (1986). Measurement of Contact Angle in a Clearance-fit Pin-loaded Hole. Experimental Techniques, 10 (2), pp. 25-27.
    Prabhakaran, R. (1985). Shear Testing of Composites. Mechanika Teoretyczna I Stosowana (Theoretical and Applied Mechanics Journal published by the Polish Academy of Sciences), 23, pp. 607-615.
    Prabhakaran, R. (1984). State of the Art in Composite Materials Testing. Current Engineering Practice, 27 (4), pp. 1-10.
    Prabhakaran, R., and Chermahini, R. G. (1984). Application Least-squares Method to Elastic and Photoelastic Calibration of Orthotropic Composites. Experimental Mechanics, 24, pp. 17-21.
    Prabhakaran, R. (1982). Discussion on The Relationship Between Tensile Strength and Flexure Strength in Fiber-Reinforced Composites. Experimental Mechanics, 22, pp. 38-39.
    Prabhakaran, R. (1982). Extension of Hole-drilling Method to Birefringent Composites. Polymer Composites, 3, pp. 40-43.
    Prabhakaran, R. (1982). Extension of Oblique Incidence Method to Photo-orthotropic-elasticity. Experimental Mechanics, 22, pp. 462-467.
    Prabhakaran, R. (1982). Photo-orthotropic-elasticity: A New Technique for Stress Analysis of Composites. Optical Engineering, 21, pp. 679-688.
    Prabhakaran, R. (1982). Photoelastic Investigation of Bolted Joints in Composites. Composites pp. 253-256.
    Chandra, R., Mallik, A. K., and Prabhakaran, R. (1982). Damping as Measure of Damage in Composites. Journal of the Technical Councils of ASCE, 108 (TC1), pp. 106-111.
    Prabhakaran, R. (1981). On the Characteristic Dimension of Two-parameter Fracture Models. International Journal of Fracture, 17, pp. R177-R180.
    Prabhakaran, R., and Nair, E. (1981). Selection of Matrix Materials for Composites Based on Notch Sensitivity. Transactions of the Canadian Society for Mechanical Engineering, 6, pp. 54-56.
    Prabhakaran, R. (1981). Comment on Strength Prediction of Composite Laminates with Unloaded Fastener Holes. AIAA Journal pp. p. 1375.
    Prabhakaran, R. (1980). Model Materials for Photo-orthotropic-elasticity. Fibre Science and Technology, 13 (1), pp. 1-11.
    Prabhakaran, R. (1980). Photoelastic Calibration of Orthotropic Model Materials. Optica Acta, 27 (4), pp. 429-433.
    Prabhakaran, R. (1980). Separation of Principal Stresses in Photo-orthotropic-elasticity. Fibre Science and Technology, 13 (4), pp. 245-253.
    Prabhakaran, R. (1980). Fabrication of Birefringent Anisotropic Model Materials. Experimental Mechanics, 20, pp. 320-321.
    Rajamani, A., and Prabhakaran, R. (1980). Response of Composite Plates to Blast Loading. Experimental Mechanics, 20, pp. 245-250.
    Prabhakaran, R. (1980). Discussion on A Unified Approach to Optical Constitutive Relations. Experimental Mechanics, 20, pp. 178-180.
    Rowlands, R. E., Dudderar, T. D., Prabhakaran, R., and Daniel, I. M. (1980). Holographically Determined Isopachics and Isochromatics in the Neighborhood of a Crack in a Glass Composite. Experimental Mechanics, 20, pp. 53-56.
    Prabhakaran, R. (1979). Application of Brittle Coatings on Orthotropic Materials. Fibre Science and Technology, 12 (1), pp. 11-19.
    Prabhakaran, R. (1979). Tensile Fracture of Composites with Circular Holes. Materials Science and Engineering, 41, pp. 121-125.
    Prabhakaran, R., and Nair, E. (1978). Notch Sensitivity of Polymers. Journal of Applied Polymer Science, 22, pp. 3011-3022.
    Rajamani, A., and Prabhakaran, R. (1977). Dynamic Response of Composite Plates with Cutouts, Part I: Simply Supported Plates. Journal of Sound and Vibration, 54, pp. 549-564.
    Rajamani, A., and Prabhakaran, R. (1977). Dynamic Response of Composite Plates with Cutouts, Part II: Clamped-clamped Plates. Journal of Sound and Vibration, 54, pp. 565-576.
    Chandrasekhara, K., Jacob, K. A., and Prabhakaran, R. (1977). Towards Stress-freezing in Orthotropic Model Materials. Experimental Mechanics, 17, pp. 317-320.
    Prabhakaran, R. (1976). On the Application of Brittle Coatings to Graphite Fibre Reinforced Plastics. AIAA Journal, 17 (1), pp. 110-112.
    Prabhakaran, R. (1976). Stress-strain Models for Photo-orthotropic-elasticity. Journal of Aeronautical Society of India, 28, pp. 165-169.
    Prabhakaran, R. (1976). Discussion on the Birefringent Response of a Potential Photoelastic Material with Variable Elastic Properties. Experimental Mechanics, 16, pp. p. 151.
    Prabhakaran, R. (1976). The Measurement of Shear-material-fringe-value in Photo-orthotropic-elasticity. Journal of Aeronautical Society of India, 28, pp. 33-38.
    Prabhakaran, R. (1976). The Interpretation of Isoclinics in Photo-orthotropic-elasticity. Experimental Mechanics, 16, pp. 6-10.
    Prabhakaran, R. (1975). Discussion on Strain-optic Law for a Certain Class of Birefringent Composites. Experimental Mechanics, 15, pp. p. 392.
    Prabhakaran, R. (1975). Discussion on Fiber-reinforced Birefringent Composite Materials. Experimental Mechanics, 15, pp. p. 240.
    Prabhakaran, R. (1975). Strain-optic Law for Orthotropic Model Materials. AIAA Journal pp. 723-728.
    Prabhakaran, R. (1975). On the Stress-optic Law for Orthotropic Model Materials in Biaxial Stress Fields. Experimental Mechanics, 15, pp. 29-34.
    Rowlands, R. E., Daniel, I. M., and Prabhakaran, R. (1974). Wave Motion in Anisotropic Media by Dynamic Photomechanics. Experimental Mechanics, 14, pp. 433-439.
    Prabhakaran, R. (1974). Glass Fibre Reinforced Plastics as Model Materials for Photoelasticity. Reinforced Plastics pp. 31-33.
    Prabhakaran, R. (1973). Photoelastic Analysis of an Orthotropic Ring Under Diametral Compression. AIAA Journal pp. 777-778.
    Prabhakaran, R., and Dally, J. W. (1972). Application of Photo-orthotropic-elasticity. Journal of Strain Analysis, 7, pp. 253-260.
    Dally, J. W., and Prabhakaran, R. (1971). Photo-Orthotropic-Elasticity, Part I. Experimental Mechanics, 11, pp. 346-352.
    Dally, J. W., and Prabhakaran, R. (1971). Photo-Orthotropic-Elasticity, Part II. Experimental Mechanics, 11, pp. 353-356.
    Dally, J. W., and Prabhakaran, R. (1971). A Class of Zero-Birefringent Polymers. Experimental Mechanics, 11, pp. 26-31.

  • Book Chapters

    Razzaq, Z., Dabbagh, M., Sirjani, M. B., and Prabhakaran, R. (2008). Concrete Slabs Reinforced with FRP or Steel Reinforcements. (pp. 11 pages). Journal of Reinforced Plastics and Composites, Paper JRP 089487.
    Razzaq, Z., Sirjani, M. B., and Prabhakaran, R. (2008). LRFD Approach for FRP Channel Section Columns. (pp. 7 pages). Journal of Reinforced Plastics and composites, Paper JRP 089488.
    Razzaq, Z., Coskun, H., Li, X., Beach, R., and Prabhakaran, R. (2008). LRFD Approach fro FRP-Reinforced Thermoplastic Beams. (pp. 11 pages). Journal of Reinforced Plastics and Composites, Paper JRP 093495.
    Prabhakaran, R., Saha, M., Douglas, M., and Nettles, A. T. (2002). Damage Resistance and Damage Tolerance of Pultruded Composite Sheet Materials. (pp. 139-155). Composite Materials: Testing, Design, and Acceptance Criteria, ASTM STP 1416.
    Prabhakaran, R. (1981). Applications of Transmission Photoelasticity to Composite Materials.. Chapter 3 in Developments in Composite Materials, Applied Science Publishers.

  • Conference Proceeding

    Dally, J. W., and Prabhakaran, R. A Photoelastic Study of Stress Waves in Fiber-reinforced Composites. (pp. 937-949). Developments in Mechanics, Proceedings of the 12th Midwestern Mechanics Conference.
    Prabhakaran, R., Srinivas, R., and Razzaq, Z. An Experimental Investigation of Bolt-Preload Relaxation in Pultruded Composite Joints. (pp. 14E1-14E13). Proceedings of the Composite Institute’s International Composites EXPO ’97, Society for the Plastics Industry.
    Prabhakaran, R., Razzaq, Z., and Devara, S. Block Shear Failure Modes in Pultruded Composite Plate Connections. (pp. 10F1-10F7). Proceedings of the Composite Institutes' 50th Annual Conference, Society for the Plastic Industry.
    Dally, J. W., and Prabhakaran, R. Effect of Notches on the Fatigue Behavior of Continuously Reinforced Composite Materials. In A.C. Eringen (Ed.) (pp. 189-201). Recent Advances in Mechanical Engineering.
    Razzaq, Z., Prabhakaran, R., Qureshi, P., Sirjani, M., and Petty, M. D. Impact Load Response of Pultruded Fiberglass Grating. (pp. 24C1-24C6). Proceedings of the Composite Institute's 51st Annual Conference, Society for the Plastics Industry.
    Prabhakaran, R., Devara, S., and Razzaq, Z. (2016). The Effect of Fiber Orientation Angle of the Unnotched, Open Hole, and Pin-Loaded Strength of a Pultruded Composite. (pp. 20C1-20C15). Proceedings of the Composite Institute's 51st Annual Conference, Society for the Plastics Industry. doi:10.1177/0021998315625101
    Prabhakaran, R. (2008). Workshop on Composite Materials for College Faculty.. TRICHY: presented at the National Institute of Technology, sponsored by the World Bank.
    Prabhakaran, R. (2008). Workshop on Composite Materials for Graduate Students.. TRICHY: presented at the National Institute of Technology, sponsored by the World Bank.
    Saha, M., and Prabhakaran, R. (2002). Effect of Circular Hole on Compressive Behavior of Pultruded Composites.. Orlando, Florida: 21st Southeastern Conference on Theoretical and Applied Mechanics.
    Saha, M., and Prabhakaran, R. (2002). Effect of Circular Hole on Compressive Behavior of Pultruded Composites.. Orlando, Florida: 21st Southeastern Conference on Theoretical and Applied Mechanics.
    Prabhakaran, R. (2001). Experimental Techniques for Determining In-Plane Elastic Constants of Orthotropic Composites. (pp. 1-9). Hamirpur: Proceedings of the 46th Congress of the Indian Society for Theoretical and applied Mechanics.
    Prabhakaran, R. (2001). Recent Research in the Mechanical Behavior of Pultruded Composite Materials.. Hamirpur: Professor Karunesh Memorial Lecture, 46th Congress of the Indian Society for Theoretical and Applied Mechanics.
    Prabhakaran, R., Saha, M., Douglas, M., and Nettles, A. T. (2001). Damage Resistance and Damage Tolerance of Pultruded Composite sheet Materials.. Phoenix, Arizona: ASTM Symposium on Composite Materials: Testing, design, and Acceptance Criteria.
    Saha, M., Prabhakaran, R., and Waters, W. A. (2000). Compressive Properties of Pultruded Composites.. Riga: Eleventh International Conference on Mechanics of Composite Materials.
    Prabhakaran, R., and Xu, H. (2000). Hole-Size Effects in Pultruded Composites.. Riga: Eleventh International Conference on Mechanics of Composite Materials.
    Razzaq, Z., Prabhakaran, R., and Sirjani, M. M. (1999). Flexural-Torsional Behavior of RP Channel Section Beams. (pp. 4A1-4A7). Proceedings of the Composite Institutes' 50th Annual Conference, Society for the Plastic Industry.
    Sirjani, M. B., Razzaq, Z., and Prabhakaran, R. (1999). Lateral-Torsion response of FRP Beams under Three-Point Loading and LRFD Approach.. International Composites EXPO ’99.
    Prabhakaran, R., and Saha, M. (1999). Tension, Compression and Flexure Properties of Pultruded Composites.. Paris: 12th International Conference on Composite Materials.
    Prabhakaran, R., Saha, M., and Galloway, T. (1999). Ultrasonic Measurement of In-Plane Moduli of Pultruded composites.. Paris: 12th International Conference on Composite Materials.
    Saha, M., Prabhakaran, R., and Waters, W. A. (1999). Modeling of Pultruded Composite Sheet Materials and Their Response Under Compressive Loading.. VPI, Blacksburg: the1999 ASME Mechanical and Materials Conference.
    Prabhakaran, R., and Robertson, J. (1998). An Experimental Investigation of Load-Sharing in a Multi-Bolt Pultruded Composite Joint. (pp. 355-368). Proceedings of the Second International Conference on Composites in Infrastructure (ICCI `98).
    Razzaq, Z., Coskun, H., Li, X., Beach, R., and Prabhakaran, R. (1998). Flexural Behavior and LRFD Approach for FRP-Reinforced Thermoplastic Beams. (pp. 18-E/1 to 18-E/12). Nashville: Proceedings of the International Composites EXPO `98.
    Razzaq, Z., Sirjani, M. M., and Prabhakaran, R. (1998). LRFD Approach for Channel Section FRP Columns. (pp. 18-B/1 to 18-B/9). Nashville: Proceedings of the International Composites EXPO '98.
    Prabhakaran, R., and Saha, M. (1998). Stress Gradient Effects on Pultruded Composite Strength.. Las Vegas: Fifth International Conference on Composites Engineering (ICCE-V).
    Prabhakaran, R., Devara, S., and Razzaq, Z. (1997). An Investigation of the Influence of Tightening Torque and Sea Water on Bolted Pultruded Composite Joints. (pp. 14D1- 14D14). Proceedings of the Composite Institute’s International Composites EXPO ’97, Society for the Plastics Industry.
    Scott, L. A., Prabhakaran, R., and Bryant, R. G. (1997). Wear Results of an Advanced Polymeric Material for Use in Total Knee Replacements.. Virginia Academy of Science Meeting at VPI.
    Razzaq, Z., Adnan, M., Dabbagh, E., Sirjani, M. M., and Prabhakaran, R. (1997). Yield Line Study of Concrete Slabs with FRP Rebars. (pp. 6C1-6C13). Proceedings of the Composite Institute’s International Composites EXPO ’97, Society for the Plastics Industry.
    Scott, L. A., Prabhakaran, R., Bryant, R. G., and Buchman, A. (1997). Low-Velocity Wear Resistance of LaRC-SI and Blends Against Metals.. Las Vegas: PMSE/POLY Joint Poster Session of the American Chemical Society.
    Coats, T., Harris, C. E., and Prabhakaran, R. (1997). Translaminate Fracture of Notched Transparent Continuous Fiber-Reinforced Composites.. Bellevue, Washington: 1997 SEM Spring Conference.
    Prabhakaran, R., and Ramasamy, M. (1992). Novel Sensors for Continuous Crack-length Measurement.. Nashville, TN: Sixteenth Southeastern Conference on Theoretical and Applied Mechanics.
    Prabhakaran, R. (1991). Experimental Mechanics Investigations of Composites: Developments of Novel Test Methods.. Trieste: Workshop on Composite Materials, United Nations Industrial Development Organization.
    Prabhakaran, R. (1991). Experimental Mechanics Investigations of Composites: Mechanical and Photo-mechanical Studies.. Trieste: Introductory Workshop on Composite Materials, United Nations Industrial Development Organization.
    Prabhakaran, R., and Lopez, O. F. (1990). Continuous Crack Length Measurement with a Carbon Powder Polymer Composite. (pp. 187-192). Albuquerque NM: Proceedings of the Spring Conference on Experimental Mechanics, Society for Experimental Mechanics.
    Prabhakaran, R. (1990). A New Nondestructive Method to Detect Fiber Damage in Carbon Fiber Reinforced Polymer Composites. (pp. 1-4). Proceedings of the 45th Annual Conference, Composites Institute, The Society of the Plastics Industry, Session 15-C,.
    Prabhakaran, R. (1989). A Method for Assessing Damage in Graphite Fiber Reinforced Composites. (pp. 982-987). Proceedings of the International Conference on Applied Mechanics.
    Prabhakaran, R., and Naik, R. A. (1987). Application of Optical and Photomechanical Techniques in the Study of Mechanical Joints. (pp. 199-202). San Diego, California: Proceedings of the International conference on Photomechanics and Speckle Metrology.
    Prabhakaran, R., and Naik, R. A. (1986). An Analytical and Experimental Study of Contact, Stresses and Failure in Clearance-fit, Pin-loaded Polycarbonate Specimens.. SEM: Spring Conference on Experimental Mechanics.
    Prabhakaran, R., and Naik, R. A. (1986). A New Method for Measuring Contact Angle in Pin-Loaded Holes Simulating Bolted Joints.. Imperial College of Science and Technology, London: Third International symposium on Joining and Repair of Fibre Reinforced Plastics.
    Prabhakaran, R., and Naik, R. A. (1986). An Analytical and Experimental Investigation of Contact Angle in a Bolted Composite Joint. (pp. 61-70). Aalborg University, Aalborg: Proceedings of the Symposium on Mechanical Characterization of Fibre Composite Materials.
    Prabhakaran, R., and Sawyer, W. (1985). A Photoelastic Investigation of Asymmetric Four-Point Bend Shear Test for Composite Materials.. Third International Conference on Composite Structures.
    Spigel, B. S., Sawyer, W., and Prabhakaran, R. (1985). An Investigation of the Iosipescu and Asymmetrical Four-point Bend Tests for Composite Materials.. SEM, Las Vegas, Nevada: Spring Conference on Experimental Mechanics.
    Prabhakaran, R. (1984). Experimental Mechanics of Fiber Reinforced Composites. (pp. 73-86). Warsaw: Eleventh Symposium on Experimental Research in Mechanics of Solids, Sponsored by the Polish Academy of Sciences.
    Prabhakaran, R. (1983). Simultaneous Elastic and Photoelastic Calibration of Birefringent Orthotropic Model Materials.. Second International Conference on Composite Structures.
    Prabhakaran, R., and Chermahini, R. G. (1982). Application of Least Squares Method to the Measurement of Orthotropic Elastic Constants. (pp. 382-386). Hawaii: Proceedings of the SESA-JSME Joint Conference on Experimental Mechanics.
    Prabhakaran, R., and Chermahini, R. G. (1982). Location of Gages for Determining Orthotropic Elastic Constants. (pp. 81--87). Karlovy Vary: Proceedings of the 20th National Conference on Experimental Stress Analysis.
    Prabhakaran, R. (1982). Measurement of Elastic Constants of Orthotropic Composites.. 37th Annual Technical Conference, Reinforced Plastics/Composites Institute, The Society of the Plastics Industry.
    Prabhakaran, R. (1982). Application of Least Squares Method to Photo-Orthotropic-elastic Calibration.. Haifa: Seventh International Conference on Experimental Stress Analysis.
    Prabhakaran, R. (1982). A Photoelastic Investigation of Bolted Joints in Composites.. Imperial College, London: Symposium on Jointing in Fibre Reinforced Plastics.
    Prabhakaran, R. (1981). Complete Stress Analysis of Composite Photoelastic Models by Oblique Incidence.. Dearborn, Michigan: Spring Meeting of the Society for Experimental Stress Analysis.
    Prabhakaran, R. (1981). Determination of Principal Stresses in Birefringent Composites by Hole-drilling Method. (pp. 1-4). Proceedings of the 36th Annual Technical Conference, Reinforced Plastics/Composites Institute, The Society of the Plastics Industry. Session 10-C.
    Prabhakaran, R. (1981). Effect of Stress Relieving Holes on the Strength of Perspex and Polycarbonate. (pp. 37-39). Boston: Proceedings of the 39th Annual Technical Conference of the Society of Plastics Engineers.
    Prabhakaran, R. (1981). Photoelastic Techniques for the Complete Determination of Stresses in Composite Structures.. International Conference on Composite Structures.
    Prabhakaran, R. (1980). Application of Oblique Incidence Photoelastic Techniques to birefringent Composites. (pp. 121-128). Warsaw: Ninth Symposium on Experimental Research In Mechanics of solids, Sponsored by the Polish Academy of Sciences.
    Prabhakaran, R., and Nair, E. (1979). Effect of Matrix Notch Sensitivity on Composite Notch Sensitivity. (pp. 115-116). Sherbrooke: Proceedings of the Seventh Canadian Congress of Applied Mechanics.
    Prabhakaran, R. (1979). Hole Size Effect in Composites.. Sherbrooke: Proceedings of the 7th Canadian congress of Applied Mechanics.
    Prabhakaran, R. (1979). Developments in Photo-orthotropic-elasticity. (pp. 559-585). Poitiers: IUTAM Symposium on Optical Methods in Solid Mechanics, Proceedings of the Symposium.
    Rajamani, A., and Prabhakaran, R. (1978). Free Vibration Characteristics of Clamped- Clamped Composite Plates with Circular Holes and Square Cutouts.. Toronto: Second International Conference on Composite Materials.
    Rajamani, A., and Prabhakaran, R. (1978). Free Vibration Characteristics of Simply Supported Composite Plates with Circular Holes and Square Cutouts.. Lisbon: 11th Congress of International Council of the Aeronautical Sciences.
    Prabhakaran, R. (1978). Effect of Geometrical Discontinuities on Fatigue and Fracture Behavior of Composite Materials.. Bangalore: Conference on Fatigue and Fracture, Sponsored by the Department of Science and Technology, Government of India.
    Rajamani, A., and Prabhakaran, R. (1977). Dynamic Response of Simply Supported Composite Plates with Cut-outs. (pp. 423-424). Vancouver: Proceedings of the Sixth Canadian Congress of Applied Mechanics.
    Prabhakaran, R., and Nair, E. (1976). Anisotropy of Notch Sensitivity of Composite Materials.. Boston: Second International Conference on Mechanical Behavior of Engineering Materials.
    Prabhakaran, R., and Sridhar, M. K. (1975). Notch Sensitivity of GFRP Materials in the Low-cycle Fatigue Region. (pp. 1-6). Proceedings of the 30th Anniversary Technical Conference, Reinforced Plastics/Composites Institute, The Society of the Plastics Industry, Section 9-D.
    Prabhakaran, R. (1975). Low-cycle Fatigue of Glass Fibre Reinforced Plastics.. BARC, Bombay: Structural Mechanics Symposium.
    Prabhakaran, R. (1975). Stress Concentration Factors in Composite Materials by Transmission Photoelasticity.. BARC, Bombay: Structural Mechanics Symposium.
  • Leader in composites Research and prominently featured in the publication, COMPOSITES IN VIRGINIA, prepared for the Commonwealth of Virginia
  • 1999: College of Engineering and Technology Research Award
  • 1999: University Nominee for the State Council of Higher Education’s Year 2000 Outstanding Faculty Awards Program
  • 1998: International Advisory Board, for the Fifth International Conference on Composites Engineering, Las Vegas
  • 1996: Fellow of the Society, Society for Experimental Mechanics (SEM)
  • 1995: Outstanding Faculty Award, ASME Student Chapter of ODU
  • 1994: Technical Editor of Experimental Mechanics Journal, Society for Experimental Mechanics (SEM)
  • 1991: Certificate of Recognition and Cash Award for the disclosure of an Inventive Contribution entitled, "Conductive Gauge for Crack-length Measurement,", NASA, Langley Research Center
  • 1987: Award for "Shear Testing of Composites"
  • 1987: Associate Editor of Experimental Mechanics Journal, Society for Experimental Mechanics (SEM)
  • 1986: Best Paper Award for "Measurement of Contact Angle in a Clearance-fit Pin-loaded Hole,", Society for Experimental Mechanics

  • Contracts, Grants and Sponsored Research

    Prabhakaran, R. "An Experimental Investigation of Damage Resistance and Damage Tolerance of Composite Materials" $20,000. June 1, 2001 - January 31, 2003
    Prabhakaran, R. "Automated Tow Placement Processing and Characterization of Composites" $35,000. December 18, 2001 - October 31, 2002
    Prabhakaran, R. "Automated Tow Placement Processing and Characterization of Composites" $29,940. July 1, 2001 - January 8, 2002
    Prabhakaran, R. "PAC-3 Mentor-Protégé Composites Testing and Manufacturing Process Improvement" $107,437. August 5, 1999 - December 31, 1999
    Prabhakaran, R. "A Comparison of Quasi-Static Indentation and Drop-Weight Impact Testing on Carbon/Epoxy Laminates" $35,000. December, 1998 - December 15, 1999
    Prabhakaran, R. "PAC-3 Mentor-Protégé Composites Testing and Manufacturing Process Improvement" $50,000. June 1, 1999 - August 4, 1999
    Prabhakaran, R. "PAC-3 Mentor-Protégé Composites Testing and Manufacturing Process Improvement" $251,000. June 15, 1998 - May 1, 1999
    Prabhakaran, R. "Mechanical Characterization of Ceramic-LaRC SI Polymer Composites for Wear-Resistant Applications" $108,294. 1996 - 1998
    Prabhakaran, R. "Failure Characteristics of Honeycomb Sandwich Structures and Aircraft Alloys" $18,000. November, 1997 - November, 1998
    Prabhakaran, R. "Applications of Biaxially Stretched Thermoplastic Polymers" $22,000. August, 1996 - August, 1997
    Prabhakaran, R. "Progressive Damage in Composites" $31,402. November, 1995 - November, 1996
    Prabhakaran, R. "Measurement of Mechanical Properties of Ceramic-Polymer Composites" $15,000. March, 1996 - July, 1996
    Prabhakaran, R. "Virginia Space Grant Consortium Graduate Fellowship for Mark Robeson" $5,000. 1994 - 1995
    Prabhakaran, R. "Experimental Study of Time Dependent Behavior of Composites" $39,995. November, 1994 - November, 1995
    Prabhakaran, R. "Progressive Damage in Composites" $29,963. November, 1994 - November, 1995
    Prabhakaran, R. "Characterization of the Behavior of Composite Shell Structures under Combined Mechanical and Internal Pressure Loading" $22,000. August, 1994 - August, 1995
    Prabhakaran, R. "Virginia Space Grant Consortium Graduate Fellowship for Mark Robeson" $5,000. 1993 - 1994
    Prabhakaran, R. "Experimental Study of Time Dependent Behavior of Composite" $41,995. November, 1993 - November, 1994
    Prabhakaran, R. "Progressive Damage in Composites" $27,990. November, 1993 - November, 1994
    Prabhakaran, R. "Characterization of the Behavior of Composite Shell Structures under Combined Mechanical and Internal Pressure Loading" $22,000. August, 1993 - August, 1994
    Prabhakaran, R. "Virginia Space Grant Consortium Graduate Fellowship for Mark Robeson" $5,000. 1992 - 1993
    Prabhakaran, R. "Time Dependent Behavior of Composites" $35,768. November, 1992 - October, 1993
    Prabhakaran, R. "Investigation of Progressive Damage in Composite Materials" $25,188. October, 1992 - September, 1993
    Prabhakaran, R. "Characterization of the Behavior of Composite Shell Structures under Combined Mechanical and Internal Pressure Loading" $22,000. August, 1992 - August, 1993
    Prabhakaran, R. "Role of Constituents in Organic-matrix Composites" $24,041. November, 1991 - November, 1992
    Prabhakaran, R. "Investigation of Five-point Bend Test for Composites" $25,057. October, 1991 - October, 1992
    Prabhakaran, R. "Fatigue and Fracture of Aluminum Alloys" $8,000. May, 1992 - August, 1992
    Prabhakaran, R. "Time Dependent Behavior of Composites" $5,712. August, 1991 - May, 1992
    Prabhakaran, R. "Thermal-mechanical Analysis of Metal Matrix Composites" $1,632. September, 1991 - December, 1991
    Prabhakaran, R. "Role of Constituents in Organic-matrix Composites" $15,310. November, 1990 - October, 1991
    Prabhakaran, R. "Investigation of Five-point Bend Test for Composites" $24,011. October, 1990 - October, 1991
    Prabhakaran, R. "Thermal-mechanical Analysis of Metal Matrix Composites" $4,544. April, 1991 - August, 1991
    Prabhakaran, R. "Time Dependent Behavior of Composites" $8,202. January, 1991 - August, 1991
    Prabhakaran, R. "Measurement of the Interfacial Strain Distribution in Adhesively Bonded, Stiffened Plate" $24,940. November, 1989 - October, 1990
    Prabhakaran, R. "Measurement of Interfacial Strain Distribution in Adhesively Bonded, Stiffened Plate" $52,354. October, 1988 - October, 1989
    Prabhakaran, R. "Investigation of Interfacial Strains in a Bonded Stiffened Plate" $25,000. October, 1987 - October, 1988
    Prabhakaran, R. "Investigation of Interfacial Strains in a Bonded Stiffened Plate" $31,740. February, 1987 - October, 1987
    Prabhakaran, R. "A Study of the Strength and Toughness of Laminates Subjected to Bearing Loads" $49,900. October, 1985 - October, 1986
    Prabhakaran, R. "Residual Stress Measurements in Graphite/Polyimide Composites" $14,690. October, 1985 - October, 1986
    Prabhakaran, R. "Structural Efficiency Studies of Advanced Aero thermal Compression Panels" $32,843. October, 1985 - October, 1986
    Prabhakaran, R. "Development of an Algorithm and Computer code for 3-Dimensional Geometric Non-linear Analysis" $8,000. August, 1985 - December, 1985
    Prabhakaran, R. "A Photoelastic Investigation of Shear Tests for Composite Materials" $10,000. October, 1984 - October, 1985
    Prabhakaran, R. "A Study of the Strength and Toughness of Laminates Subjected to Bearing Loads" $34,999. October, 1984 - October, 1985
    Prabhakaran, R. "Modeling of Low-Velocity Impact Damage of Continuous Fiber-Reinforced Composites" $17,500. October, 1984 - October, 1985
    Prabhakaran, R. "A Study of the Strength and Toughness of Laminates Subjected to Bearing Loads" $10,000. January, 1984 - October, 1984
    Prabhakaran, R. "Modeling of Low-Velocity Impact Damage of Continuous Fiber-Reinforced Composites" $15,500. October, 1983 - October, 1984
    Prabhakaran, R. "Aero thermal Structural Concepts Study" $25,990. December, 1982 - December, 1983
    Prabhakaran, R. "An Investigation of Residual Stresses in Advanced Composites" $15,535. November, 1982 - October, 1983
    Prabhakaran, R. "Separation of Principal Stresses in Photo-Orthotropic-Elasticity" $58,080. January, 1981 - June, 1983
    Prabhakaran, R. "Aero thermal Structural Concepts Study" $21,054. November, 1981 - October, 1982
    Prabhakaran, R. "Equipment for Application of Photoelasticity to Composite Model Materials" $24,615. September, 1980 - August, 1981
    Prabhakaran, R. "Application of Photo-orthotropic-elasticity to Plane Problems in Composites" $31,022. November, 1979 - October, 1980
    Prabhakaran, R. "Stress Analysis and Low-Cycle Fatigue Behavior of Composite Materials" . 1976 - 1979
    Prabhakaran, R. "Photoelastic Studies of Advanced Lap Joint Concepts" $9,045. March, 1979 - August, 1979
    Prabhakaran, R. "Dynamic Response of Fibre Reinforced Composites" . 1973 - 1978

  • Intellectual Property

    METHOD OF CONTINUOUSLY DETERMINING CRACK LENGTH
    Patent/Copyright: Patent
    Inventors:
    Prabhakaran, R.