Education

Ph. D., Theoretical & Applied Mechanics, University of Illinois at Urbana-Champaign, 1994

M. S., Mining Engineering, University of Utah, 1991

B. Tech., Mining Engineering, Indian School of Mines, 1988

Experience

Professor, Civil & Environmental Engineering and Materials Science and Engineering, Carnegie Mellon University, 2007-

Associate Professor, Civil & Environmental Engineering and Materials Science and Engineering, Carnegie Mellon University, 2003-2007

Assistant Professor, Civil & Environmental Engineering, Carnegie Mellon University, 2000-2003

Research Scientist, Center for Simulation of Advanced Rockets, Univ. of Illinois at Urbana-Champaign, 1998-2000

Selected projects:

  •  Numerical modeling of ‘non-material’ solid-gas interface and solid region in solid rocket booster motors
  • Theoretical and numerical modeling of length-scale effects in single crystal and polycrystal plasticity

Senior Research Engineer, Hibbitt, Karlsson & Sorensen, Inc., 1995-1998

Selected projects:

  • Developed and implemented the fully-integrated, finite-strain, ABAQUS Standard shell element S4
  • Implemented the Bergström-Boyce model for polymer hysteresis (nonlinear viscoelasticity) in ABAQUS Standard - ABAQUS keyword *Hysteresis

Post-Doctoral Fellow, Dept. of Mechanical Eng. & Applied Mechanics, University of Pennsylvania, 1994-1995

  • Formulation of a gradient theory of crystal plasticity based on the notion of lattice incompatibility