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Phone: 410-516-7257

Fax: 410-516-7254

E-mail contact: lstarnes@jhu.edu

 

Dynamic Failure Mechanisms

Publications

  1. Zhou, F., J.F. Molinari & K.T. Ramesh, “A Cohesive-Model Based Fragmentation Analysis: Effects of Strain Rate and Initial Defects Distribution,” International Journal of Solids and Structures, Vol. 42, pp. 5181-5207, 2005.
  2. Zhou, F., Jean-Francois Molinari & K.T. Ramesh, "A finite difference analysis of the brittle fragmentation of an expanding ring", Computational Material Sciences, accepted for publication, 2005.
  3. Zhou, F., Molinari, J.F. & Ramesh, K.T., “An Elasto-Visco-Plastic Analysis of Ductile Expanding Rings,” International Journal of Impact Engineering, Volume 33, Issues 1-12, Pages 880-891, 2006.
  4. F. Zhou, T.W. Wright and K.T. Ramesh, “The formation of multiple adiabatic shear bands”, Journal of Mechanics and Physics of Solids, Vol. 54, pp. 1376-1400, 2006.
  5. F. Zhou, J.F. Molinari and K.T. Ramesh, “Characteristic Fragment Size Distribution of Dynamically Expanding Rings”, Applied Physics Letters, Vol. 88, No. 26: Art. No. 261918, 2006.
  6. R. T. Ott, F. Sansoz, J. F. Molinari, J. Almer, K. T. Ramesh, and T. C. Hufnagel, “Micromechanics of deformation of metallic-glass-matrix composites from in situ synchrotron strain measurements and finite element modeling,” Acta materialia, Vol. 53, pp. 1883-1893, 2005.
  7. S.R. Bilyk, K.T. Ramesh & T.W. Wright, “Finite Deformations of Metal Cylinders Subjected to Electromagnetic Fields and Mechanical Forces,” Journal of Mechanics and Physics of Solids, Vol. 53, pp. 525-544, 2005.
  8. Wei, Q., Ramesh, K.T., Ma, E., Kesckes, L.J., Dowding, R.J., Kazykhanov, V.U. and Valiev, R.Z., “Plastic Flow Localization in Bulk Tungsten with Ultrafine Microstructure,” Applied Physics Letters, Vol. 86, 101907, 2005.
  9. Zhou, F., J.F. Molinari & K.T. Ramesh, “A Cohesive-Model Based Fragmentation Analysis: Effects of Strain Rate and Initial Defects Distribution,” International Journal of Solids and Structures, Vol. 42, pp. 5181-5207, 2005.
  10. Zhang, H., K.T. Ramesh and E.S.C. Chin, “Effects of Interfacial Debonding on the Rate-Dependent Response of Metal Matrix Composites,” Acta Materialia, Vol. 53, pp. 4687-4700, 2005.
  11. Zhang, H., Schuster, B.E., Wei, Q. & K.T. Ramesh, “The design of accurate microcompression experiments,” Scripta Materialia, Vol. 54, pp. 181-186, 2006.
  12. Zhou, F., T.W. Wright & K.T. Ramesh, "A numerical methodology for investigating the formation of adiabatic shear bands", Journal of Mechanics and Physics of Solids, Vol. 54, 904-926, 2006.
  13. Schuster, B.E., Wei, W., Zhang, H. and Ramesh, K.T., “Microcompression of Nanocrystalline Nickel,” Applied Physics Letters, 88, No. 103112, 2006.
  14. Zhou, F., T.W. Wright & K.T. Ramesh, "The formation of multiple adiabatic shear bands", Journal of Mechanics and Physics of Solids, Vol. 54, pp. 1376-1400, 2006
  15. Zhou, F., Jean-Francois Molinari & K.T. Ramesh, "Analysis of the brittle fragmentation of an expanding ring", Computational Material Sciences, Vol. 37, pp. 74-85, 2006.
  16. Zhou, F., J.F. Molinari & K.T. Ramesh, “Effects of Material Properties and Strain Rate on the Fragmentation of Brittle Materials,” International Journal of Fracture, Vol. 139, pp. 169-196, 2006.
  17. Paliwal, B., Ramesh, K.T. & McCauley, J.W., “Direct observation of the dynamic compressive failure of a transparent polycrystalline ceramic (AlON),” Journal of the American Ceramic Society, Vol. 89, No. 7, pp. 2128-2133, 2006.
  18. Zhou, F., Ramesh, K.T. & Molinari, J.F., “Characteristic Fragment Size Distribution of Dynamically Expanding Rings,” Applied Physics Letters, Vol. 88, No. 26: Art. No. 261918, 2006.
  19. Joshi, S.P., Ramesh, K.T., Han, B.Q., and Lavernia, E.J. “Modeling the Constitutive Response of Bimodal Metals,” Metallurgical & Materials Transactions, Vol. 37A, pp. 2397-2404, 2006.
  20. Volokh, K. Y. and Ramesh, K.T., “An approach to multi-body interactions in a continuum-atomistic context: application to analysis of tension instability in carbon nanotubes,” International Journal of Solids and Structures, Vol. 43, Nos. 25-26, pp. 7609-7627, 2006.
  21. R.T. Ott, F. Sansoz, T. Jiao, D. Warner, C. Fan, J.-F. Molinari, K.T. Ramesh and T.C. Hufnagel, “Yield criteria and strain-rate behavior of Zr57.4Cu16.4Ni8.2Ta8Al10 metallic-glass-matrix composites” Metallurgical & Materials Transactions, Vol. 37A, No. 11: 3251-3258, 2006.
  22. Zhou, F., Molinari, J.F. & Ramesh, K.T., “An Elasto-Visco-Plastic Analysis of Ductile Expanding Rings,” International Journal of Impact Engineering, Volume 33, Issues 1-12, Pages 880-891, 2006.
  23. Li, Y. & Ramesh, K.T., “An Optical Technique for Accurate Measurement of Material Properties in the Tension Kolsky Bar,” International Journal of Impact Engineering, Volume 34, No. 4, pp. 784-798, 2007.
  24. B. Paliwal & K.T. Ramesh, “Effect of crack growth dynamics on the rate sensitive behavior of hot-pressed boron carbide,” Scripta materialia, Vol. 57, pp. 481–484, 2007.
  25. S. P. Joshi & K.T. Ramesh, “An enriched continuum model for the design of a hierarchical composite,” Scripta materialia, Volume 57, No. 9, pp. 877-880, 2007.
  26. S.P. Joshi and K.T. Ramesh, “Rotational Diffusion and Grain-Size Dependent Shear Instability in Nanostructured Materials,” Acta materialia, Vol. 56, pp.  282–291, Jan. 2008.
  27. B. Paliwal & K.T. Ramesh, “An interacting micro-crack damage model for failure of brittle materials under compression,” Journal of the Mechanics and Physics of Solids, 56, pp. 896–923, Mar. 2008.
  28. J.R. Greer, H. Espinosa, E. Nadgorny & K.T. Ramesh, “Comment on "Effects of focused ion beam milling on the nanomechanical behavior of a molybdenum-alloy single crystal”,” Applied Physics Letters, 92, No. 096101, Feb. 2008.
  29. T.W. Wright & K.T. Ramesh, “Dynamic Void Nucleation and Growth in Solids: A Self-Consistent Statistical Theory,” Journal of the Mechanics and Physics of Solids, 56, pp. 336–359, Feb., 2008.
  30. R. Kraft, J. F. Molinari and K. T. Ramesh, “Computational Micromechanics of Dynamic Compressive Loading of Brittle Polycrystalline Material Using a  Distribution of Grain Boundary Properties,” Journal of the Mechanics and Physics of Solids, Vol. 56, No. 8, pp. 2618-2641, Aug. 2008.
  31. S.P. Joshi & K.T. Ramesh, “Stability Map for Nanocrystalline and Amorphous Materials,” Physical Review Letters, Vol. 101, No. 2, Art. No. 025501, Jul. 2008.
  32. S. P. Joshi & K.T. Ramesh, “Grain Size Dependent Shear Instabilities in BCC and FCC Materials,” Materials Science & Engineering A, Vol. 493, No. 1-2, pp. 65-70,  2008.
  33. Zhang, H., J. Ye, S.P. Joshi, J.M. Schoenung, E.S.C. Chin, and K.T. Ramesh, “Rate-Dependent Behavior of Hierarchical Al Matrix Composites,” Scripta Materialia, Vol. 59, No. 10, pp.1139-1142, Nov. 2008.
  34. Zhang, H., K.T. Ramesh, Chin, E.S.C., “A multi-axial constitutive model for metal matrix composites,” Journal of Mechanics and Physics of Solids, Vol. 56, No. 10, pp. 2972-2983, Oct. 2008.
  35. Languerand, D.L., H. Zhang, N.S. Murthy, & K.T. Ramesh, “Inelastic Behavior and Fracture of High Modulus Polymeric Fiber Bundles at High Strain Rates,” Materials Science & Engineering A, Vol. 500, No. 1-2, pp. 216-224, 2009.
  36. Wright, T.W. & Ramesh, K.T., “Statistically informed dynamics of void growth in rate dependent materials,” International Journal of Impact Engineering, Vol. 36, pp. 1242-1249, 2009.