Publications

                                       Whiting School of Engineering, Johns Hopkins University                       

         PEER-REVIEWED JOURNAL PUBLICATIONS

Daphalapurkar, N.P., Ramesh, K.T. “Orientation dependence of the nucleation and growth of partial dislocations and possible twinning mechanisms in aluminum” Journal of the Mechanics and Physics of Solids. In Press.

Daphalapurkar, N.P., Ramesh, K.T., Graham-Brady, L., Molinari, J.-F. “Predicting variability in failure strength of brittle materials with pre-existing defects through computational modeling.” Journal of the Mechanics and Physics of Solids, 59(2), 297-319 (2011).

Daphalapurkar, N.P.,  Wang, F., Fu, B., Lu, H., Komanduri, R. “Measurement of mechanical properties of sand grains using nanoindentation,” Experimental Mechanics, 51, 719-728 (2011).

Daphalapurkar, N.P., Dai, C., Gan, R., Lu, H., “Characterization of the linearly viscoelastic behavior of human tympanic membrane by nanoindentation,” Journal of Mechanical Behavior of Biomedical materials, 2(1), 82-92 (2009).

Daphalapurkar, N.P., Hanan, J.C., Phelps, N.B., Bale, H., Lu, H. “Tomography and simulation of microstructure evolution of a closed-cell polymer foam in compression,” Mechanics of Advanced Materials and Structure, 15, 594-611 (2008).

Lu, H., Fu, B., Daphalapurkar, N., Hanan, J., Sotiriou-Leventis, C., Leventis, N. “Simulation of the Evolution of the Nanostructure of Crosslinked Silica-Aerogels Under Compression,” Polymer Preprints, 49(2), 564-565 (2008).

Huang, G., Daphalapurkar, N.P., Gan, R., Lu, H. “A method for measuring linearly viscoelastic properties of human tympanic membrane using nanoindentation,” ASME Journal of Bioengineering, 130, 014501, 1-7 (2007) (Top 3 most downloaded articles for this journal in Feb 2008).

Daphalapurkar, N.P., Lu, H., Coker, D., Komanduri, R. “Simulation of dynamic crack growth using generalized interpolation material point method,” International Journal of Fracture Mechanics, 143, 79-102 (2007).

Lu, H., Daphalapurkar, N.P., Wang, B., Roy, S., Komanduri, R. “Multiscale simulation from atomistic to continuum – Coupling molecular dynamics with the material point method,” Philosophical Magazine A, 86(20), 2971-2994 (2006).

In Review

Kimberley, J., Ramesh, K.T, Daphalapurkar, N.P. “A scaling law for the dynamic compressive strength of brittle solids.” In Review, Journal of the Mechanics and Physics of Solids.

Peer-Reviewed Proceeding paper

Daphalapurkar, N.P., Ramesh, K.T., Graham-Brady, L., Levy, S., Molinari, J.-F. “Computational modeling of the variability in defect-dominated dynamic failure strengths in brittle materials.” US National Congress on Theoretical and Applied Mechanics, PA (2010).

 

     CONFERENCE PRESENTATIONS (selected)

Daphalapurkar, N.P. Partial dislocations and twinning in aluminum. 47th Sagamore Army Materials Research Conference, St. Michaels, MD. June 2010. Invited.

Daphalapurkar, N.P. (i) Molecular dynamics simulations, and (ii) Multiscale modeling and simulations, Mechanics of Nanomaterials EN.530.757 at Johns Hopkins University, Baltimore, MD. March 2010.  

Daphalapurkar, N.P., Ramesh, K.T., Graham-Brady, L., Molinari, J.-F. Computational estimate of the variability of the failure strength in ceramics containing pre-existing defects. 34th International and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL. 2010.

Daphalapurkar, N.P., Lu, H., "Direct comparison of 3D microstructure evolution of a closed-cell foam under compaction from in-situ µ-CT experiments and simulations. Society of Experimental Mechanics, Orlando, FL. 2008.

Daphalapurkar, N.P., Lu, H. Simulation of closed-cell polymeric foam under compression. Mechanics of Time-Dependent Materials Conference, Monterey, CA. 2008.

Daphalapurkar, N.P., Lu, H. Modeling and simulation of silica aerogels in compression using generalized interpolation material point method. 3rd Material Point Method Workshop, Sandia National Laboratory, Albuquerque, NM. 2007.

Daphalapurkar, N.P., Lu, H., Coker, D., Komanduri, R. Simulation of dynamic crack growth using generalized interpolation material point method. ASME Applied Mechanics and Materials (McMAT) conference, Austin, TX. 2007.

Daphalapurkar, N.P. Multiscale simulation from atomistic-continuum - Coupling MD to MPM. Oklahoma NanoNet Seminar, Oklahoma State University, Stillwater, OK. July 2004. Invited