Curriculum Vitae – Wei Cai

 

 

EDUCATION

 

Massachusetts Institute of Technology, Ph.D. in Nuclear Engineering, 2001

 

Huazhong University of Science and Technology, PRC, B.S. in Optoelectronics, 1995

 

 

WORK EXPERIENCE

 

Assistant Professor, Department of Mechanical Engineering, Stanford University, July 2004 –

 

Lawrence Postdoctoral Fellow, Directorate of Chemistry and Materials Science, Lawrence Livermore National Laboratory, June 2001 – June 2004.

 

Research Assistant, Department of Nuclear Engineering, Massachusetts Institute of Technology, September 1996 – June 2001.

 

Visiting Scholar, Department of Mechanical Engineering, Division of Mechanics and Computation, Stanford University, May-July, 2000.

 

 

RESEARCH INTERESTS

 

Predicting materials strength under ambient and extreme conditions through theory and simulations of defect microstructures across electronic, atomic, mesoscopic and continuum scales.  Identifying atomic unit mechanisms in dislocation mobility and interaction with grain boundaries, and modeling collective dislocation behavior and spontaneous pattern formation by massively parallel dislocation dynamics simulations. New research initiatives include developing optimized simulation methods for long time-scale processes in complex atomistic systems, and electronic structure and transport under magnetic fields in nano-structures.

 

 

AWARDS

 

AFOSR Young Investigator Program (YIP) Award 2006

 

NSF Career Award 2006

 

Presidential Early Career Award for Scientists and Engineers (PECASE) 2004

 

Frederick E. Terman Fellowship, Stanford University, 2004-2007

 

Special Postdoctoral Award of Lawrence Livermore National Laboratory, The Lawrence Fellowship, 2001

 

Graduate Student Award (Silver), Materials Research Society, Fall 2000

 

Manson Benedict Fellow, Department of Nuclear Engineering, MIT, 1999

 

SOCIETIES

 

Member - American Nuclear Society, American Physical Society, Materials Research Society, Alpha Nu Sigma Honor Society of American Nuclear Society, Sigma Xi Scientific Research Society

 

 

PUBLICATIONS

 

JOURNAL PUBLICATIONS

 

K. Kang, W. Cai, Brittle and Ductile Fracture of Semiconductor Nanowires – Molecular Dynamics Simulations, Philosophical Magazine, in press, (2007).

 

C. R. Weinberger and W. Cai, Computing Image Stress in an Elastic Cylinder, Journal of the Mechanics and Physics of Solids, in press (2007).

 

E. Lee, W. Cai, G. Galli, Electronic Structure Calculations in a Uniform Magnetic Field using Tilted Periodic Supercells, submitted to Journal of Computational Physics.

 

M. Tang, W. Cai, G. Xu, V. V. Bulatov, A hybrid method for computing forces on curved dislocations intersecting free surfaces in three-dimensional dislocation dynamics, Modelling Simul. Mater. Sci. Eng. 14, 1139-1151 (2006).

 

V. V. Bulatov, W. Cai, R. Baran, K. Kang, Geometric aspects of the ideal shear resistance in simple crystal lattices, Philosophical Magazine, 86, 3847-59 (2006).

 

V. V. Bulatov, L. L. Hsiung, M. Tang, A. Arsenlis, M. C. Bartelt, W. Cai, J. N. Florando, M. Hiratani, M. Rhee, G. Hommes, T. G. Pierce, T. Diaz de la Rubia, Dislocation multi-junctions and strain hardening, Nature 440, 1174-1178 (2006).

 

W. Cai, A. Arsenlis, Christopher R. Weinberger, Vasily V. Bulatov, A non-singular continuum theory of dislocations, Journal of the Mechanics and Physics of Solids 53, 561-587 (2006).

 

C. S. Deo, D. J. Srolovitzz, W. Cai, V. V. Bulatov, Stochastic simulation of dislocation glide in tantalum and Ta-based alloys, Journal of the Mechanics and Physics of Solids, 53, 1223-47 (2005).

 

C. S. Deo, D. J. Srolovitz, W. Cai, V. V. Bulatov, Kinetic Monte Carlo method for dislocation migration in the presence of solute, Physical Review B, 71, 014106 (2005).

 

W. Cai, Modelling Dislocations Using a Periodic Cell, Section 2.21, Handbook of Materials Modelling, S. Yip ed., Springer (2005).

 

M. de Koning, W. Cai, B. Sadigh, M. Kalos, V. V. Bulatov, Adaptive Importance Sampling Monte Carlo Simulation of Rare Transition Events, Journal of Chemical Physics, 122, 074103 (2005).

 

Ju Li, Cai-Zhuang Wang, Jin-Peng Chang, Wei Cai, Vasily V. Bulatov, Kai-Ming Ho, Sidney Yip, Core energy and Peierls stress of a screw dislocation in bcc molybdenum: A periodic-cell tight-binding study, Phys. Rev. B, 70 104113 (2004).


W. Cai and G. Galli, Ab initio calculations in a uniform magnetic field using periodic supercells, Physical Review Letters, 92, 186402 (2004).

 

J. Marian, W. Cai and Vasily V. Bulatov, Dynamic Transitions in Dislocation Motion: from smooth to rough to twinning, Nature Materials, 3, 158 (2004).

 

M. de Koning, W. Cai and V. V. Bulatov, A Mechanism for Anomalous Dislocation Multiplication in FCC Metals, Physical Review Letters, 91, 022503 (2003).

 

W. Cai, V. V. Bulatov, J. Chang, J. Li, and S. Yip, Periodic Image Effects in Dislocation Modeling, Philosophical Magazine A, 83, 539 (2003).

 

M. de Koning, R. J. Kurtz, V. V. Bulatov, C. H. Henager, R. G. Hoagland, W. Cai and M. Nomura, Modeling of dislocation-grain boundary interactions in FCC metals, Journal of Nuclear Materials, 323, 281 (2003).

 

W. Cai, M. H. Kalos, M. de Koning, and V. V. Bulatov, Importance Sampling of Rare Transition Events in Markov Processes, Physical Review E, 66, 046703 (2002).

 

V. V. Bulatov and W. Cai, Nodal effects in dislocation mobility, Physical Review Letters, 89, 115501 (2002).

 

W. Cai, V. V. Bulatov, J. F. Justo, A. S. Argon and S. Yip, Kinetic Monte Carlo Approach to Modeling Dislocation Mobility, Computational Materials Science, 23, 124, (2002).

                       

J. Chang, W. Cai, V. V. Bulatov, and S. Yip, Molecular Dynamics Simulations of Motion of Edge and Screw Dislocations in a Metal, Computational Materials Science, 23, 111, (2002).

 

W. Cai, V. V. Bulatov, J. Chang, J. Li, and S. Yip, Anisotropic Elastic Interactions of a Periodic Dislocation Array, Physical Review Letters, 86, 5727 (2001).

 

V. V. Bulatov, J. F. Justo, W. Cai, S. Yip, A. S. Argon, T. Lenosky, M. de Koning and T. D. de la Rubia, Parameter-free Modeling of Dislocation Motion: The Case of Silicon, Philosophical Magazine A, 81, 1257 (2001).

 

W. Cai, V. V. Bulatov, S. Yip and A. S. Argon, Kinetic Monte Carlo Modeling of Dislocation Motion in BCC Metals, Materials Science and Engineering A, 309-310, 270 (2001).

 

J. Chang, W. Cai, V. V. Bulatov and S. Yip, Dislocation Motion in BCC Metals by Molecular Dynamics, Materials Science and Engineering A, 309-310, 160 (2001).

 

J. F. Justo, M. de Koning, W. Cai and V. V. Bulatov, Point defect interaction with dislocations in silicon, Materials Science and Engineering A, 309-310, 129 (2001).

 

W. Cai, M. de Koning, V. V. Bulatov and S. Yip, Minimizing Boundary Reflections in Coupled-Domain Simulations, Physical Review Letters, 85, 3213 (2000).

 

W. Cai, V. V. Bulatov, J. F. Justo, S. Yip and A. S. Argon, Intrinsic Mobility of a Dissociated Dislocation in Silicon, Physical Review Letters, 84, 3346 (2000).

 

J. F. Justo, M. de Koning, W. Cai and V. V. Bulatov, Vacancy Interaction with Dislocation in Silicon: The Shuffle versus Glide Competition, Physical Review Letters, 84, 2172 (2000).

 

M. de Koning, W. Cai, A. Antonelli and S. Yip, Efficient Free-Energy Calculations by the Simulation of Nonequilibrium Processes, Computing in Science and Engineering, 2, 88 (2000).

 

W. Cai, V. V. Bulatov and S. Yip, Kinetic Monte Carlo Simulation for Dislocation Glide in Si, Journal of Computer-Aided Materials Design, 6, 175 (1999).

 

V. V. Bulatov, J. F. Justo, W. Cai and S. Yip, Kink Asymmetry and Multiplicity in Dislocation Cores, Physical Review Letters, 79, 5042 (1997).

 

A. Arsenlis, W. Cai, V. V. Bulatov, M. Rhee, M. Tang, T. Oppelstrup, M. Hiratani, G. Hommes, T. G. Pierce, Enabling Strain Hardening Simulations with Dislocation Dynamics, Modelling and Simulation in Materials Science and Engineering (submitted).

 

 

BOOKS AND THESIS

 

V. V. Bulatov and W. Cai, Computer Simulations of Dislocations, Oxford University Press, Nov. 2006.  Website http://micro.stanford.edu

W. Cai, V. V. Bulatov, J. Chang, J. Li, and S. Yip, Dislocation Core Effects on Mobility, in F. R. N. Nabarro and J. P. Hirth, ed. Dislocations in Solids, North-Holland Pub. vol. 12, p. 1 (2004).

 

W. Cai, Atomistic and Mesoscale Modeling of Dislocation Mobility, Ph. D. Thesis, Massachusetts Institute of Technology, 2001.

 

 

CONFERENCE PROCEEDINGS

 

Vasily Bulatov, Wei Cai, Jeff Fier, Masato Hiratani, Tim Pierce, Meijie Tang, Moono Rhee, Kim Yates, Tom Arsenlis, Scalable Line Dynamics in ParaDiS, Conference on High Performance Networking and Computing, Proceedings of the Proceedings of the ACM/IEEE Super Computing 2004 Conference (SC'04), p. 19.

 

Wei Cai and Vasily V. Bulatov, Mobility Laws in Dislocation Dynamics Simulations, Mater. Sci. Eng. A, 387-389, 277 (2004).

 

Wei Cai, Vasily V. Bulatov, Tim G. Pierce, Masato Hiratani, Moono Rhee, Maria Bartelt and Meijie Tang, Massively-Parallel Dislocation Dynamics Simulations, in Solid Mechanics and Its Applications, H. Kitagawa, Y. Shibutani, eds., vol. 115, p. 1, Kluwer Academic Publisher 2004.

 

Meijie Tang, Guanshui Xu, Wei Cai and Vasily V. Bulatov, Dislocation Image Stresses at Free Surfaces by the Finite Element Method, Materials Research Society Proceedings, vol. 795, U2.4 (2004).

 

Ju Li, Wei Cai, Jinpeng Chang and Sidney Yip, Atomistic Measures of Materials Strength and Deformation, in Computational Materials Science, ed. R. C. Catlow and E. Kotomin, NATO Science Series, Series III: Computer and Systems Sciences, vol. 187, ISBN 1387-6694, pp. 359-387, (IOS Press, Amsterdam, 2003).

 

J. Li, W. Cai, J. Chang, and S. Yip, Commentary on Atomistic Simulations of Materials Strength and Deformation: Prospects for Mechanistic Insights, in Materials Science for the 21st Century, Society of Materials Science, Japan, 2001, vol. A, p. 220-233.

      

V. V. Bulatov, M. Rhee and W. Cai, Periodic Boundary Conditions for Dislocation Dynamics Simulations in Three Dimensions, Materials Research Society Proceedings, vol. 653, Z1.3.1 (2001).

 

W. Cai, V. V. Bulatov, J. F. Justo, S. Yip and A. S. Argon, Dynamics of Dissociated Dislocations in Si: A Micro-Meso Simulation Methodology, Materials Research Society Proceedings, 538, 69 (1999).

 

 

CONFERENCE PRESENTATIONS

 

ASME Symposium on “Mechanical Properties and Microstructural Evolution of Surface and Interfaces”, Orlando, Florida, Nov. 2005

 

“Multiscale Modeling in Solids", Centre de Recherches Mathematiques, Universite de Montreal, Canada, April-May, 2005.

 

“Stochastic models for materials”, Max Planck Institute for Mathematical Sciences, Leipzig, Germany, Feb. 2005.

 

2nd International Workshop “Multiscale Modeling of Strength and Fracture: Linknig through the Mesoscale”,  Berkeley Marina, California, January 7-9, 2004.

 

"Dislocation 2004", La-Coule-Sur-Loop, France, Sept. 2004.

 

13th International Conference on the Strength of Materials, Budapest, Hungary, August 2003.

 

5th EUROMECH Solid Mechanics Conference, Thessaloniki, Greece, August 2003.

 

IUTAM Symposium on “Mesoscopic Dynamics in Fracture Process and Strength of Materials”, Osaka, Japan, July 2003.

 

Annual APS March Meeting, Session on Plastic Deformation and Fracture (DMP/GSNP) Austin, Texas, 2003.

 

Conference on Stochastic and Multi-scale Problems in the Sciences, Institute of Advanced Study, Princeton University, December 2002.

 

Materials Properties Workshop, Materials and Process Simulation Center, California Institute of Technology, January 2002.

 

Computational Materials Science Network Workshop, Berkeley, California, June 2001; Los Alamos, New Mexico, June 2002.

 

Sixth International Conference on Advanced Materials, International Union of Materials Research Society, Hong Kong, July 2000.

 

"Dislocation 2000", Gaithersburg, Maryland, June 2000.

 

Materials Research Society Annual Meetings, Boston, Massachusetts, 1998-2005; San Francisco, California, 2002-2003.

 

 

(last updated: 10/13/2006)