Journal publications

  1. M. Xu, J. Paci, J. Oswald, and T. Belytschko, A Constitutive Equation for Graphene Based on Density Functional Theory. Submitted to Int J. for Solids and Structures
  2. P. Moseley, J. Oswald, and T. Belytschko, Adaptive Atomistic-Continuum Modeling Defects Interaction with the DEBDM. Submitted to Int J. for Multiscale Computational Engineering
  3. P. Moseley, J. Oswald, and T. Belytschko, Adaptive Atomistic-to-Continuum Modeling of Propagating Defects. Accepted Int J. Numerical Methods in Engineering
  4. M. Xu, A. Tabarraei, J. Paci, J. Oswald, and T. Belytschko, A Coupled Quantum/Continuum Mechanics Study of Graphene Fracture. Int J. Fracture, (2012) [doi: 10.1007/s10704-011-9675-x]
  5. R. Jones, J. Zimmerman, J. Oswald, and Ted Belytschko, An atomistic J-integral at finite temperature based on Hardy estimates of continuum fields. J. Phs Consens. Matter 23 015002 [doi: 10.1088/0953-8984/23/1/015002]
  6. J. Oswald, E. Wintersburger, G. Baüer, and T. Belytschko, A higher-order extended finite element method for dislocation energetics in strained layers and epitaxial islands, International Journal of Numerical Methods in Engineering, 85:920-938 (2011), [doi: 10.1002/nme.3011]
  7. E. Wintersberger, N. Hrauda, D. Kreigner, M. Keplinger, G. Springholz, J. Stangl., G. Baüer, J. Oswald, T. Belytschko, C. Deiter, F. Bertram, and O.H. Seeck, Analysis of periodic dislocation networks using x-ray diffraction and extended finite element modeling, Applied Physics Letters, 96, 131905 (2010), [doi:10.1063/1.3379298]
  8. J. Oswald, R. Khare, R. Gracie, and T. Belytschko, An extended finite element method for dislocations in complex geometries: thin films and nanotubes. Computer Methods in Applied Mechanics and Engineering, (2009), [doi:10.1016/j.cma.2008.12.025]
  9. R. Gracie, J. Oswald, and T. Belytschko, On a new extended finite element method for dislocations: core enrichments. Journal of Mechanics and Physics of Solids, 56:200-214, (2008), [doi:10.1016/j.jmps.2007.07.010]

Conference presentations

  1. J. Oswald, R. Gracie, T. Belytschko, A three-dimensional extended finite element method for dislocation dynamics, 8th.World Congress on Computational Mechanics (WCCM8), Venice, Italy, July 2008.
  2. T. Belytschko, J.H. Song, R. Gracie and J. Oswald, Advances in the extended finite element method(XFEM), WCCM8/ECCOMAS2008, Venice, Italy, 2008.
  3. J. Oswald, C. Daniels, B. Steinetz, P. Dunlap, Simulating elastomer seal mechanics for a Low Impact Docking System, AIAA Space 2007 Conference and Exposition, Long Beach, CA, Sept 2007.
  4. J. Oswald, T. Belytschko, Simulation of dislocation dynamics by the extended finite element method, 9th US National Congress on Computational Mechanics (USNCCM), San Francisco, July 2007.
  5. T. Belytschko, R. Gracie, S. Loehnert, J. Oswald and J.H. Song, "Meshfree and PU multiscale methods for failure: on circumventing loss of ellipticity, dislocations and other issues", 9th USNCCM, San Francisco, CA, 2007.
  6. S. Taylor, B. Steinetz, J. Oswald, High temperature evaluation of an active clearance control system concept, AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Sacramento, CA, July 2006.
  7. J. Oswald, R. Mullen, P. Dunlap, B. Steinetz, Modeling of canted coil springs and knitted spring tubes as high temperature seal preload devices, AIAA/ASME/SAE/ASEE Joint Propulsion conference, Tucson, AZ, July 2005.

Authored NASA Technical Memoranda:

  1. Simulating Elastomer Seal Mechanics for a Low Impact Docking System
  2. Characteristics of Elastomer Seals Exposed to Space Environments
  3. Experimental Investigation of Elastomer Docking Seal Compression Set, Adhesion, and Leakage
  4. Further Characterization of an Active Clearance Control Concept
  5. High Temperature Evaluation of an Active Clearance Control System Concept
  6. Modeling and Evaluation of Canted Coil Springs as High Temperature Seal Preloading Devices