Volume 25, No. 5 May 2000
A Publication of the Materials Research Society
© Copyright 2000
Materials Research Society
All rights reserved
ATOMISTIC THEORY AND SIMULATION OF FRACTURE
• Atomistic
Theory and Simulation of Fracture, 11
• R.L.B. Selinger and D. Farkas,
Guest Editors
• Atomistic Aspects of Brittle
Fracture,15
• P. Gumbsch and R.M. Cannon
• A Dislocation Model for the
Directional Anisotropy of Grain-Boundary Fracture, 21
• G.E. Beltz and D.M. Lipkin
• Dynamic Fracture of Silicon:
Concurrent Simulation of Quantum Electrons, Classical Atoms,
and the Continuum Solid, 27
• F.F. Abraham, N. Bernstein,
J.Q. Broughton, and D. Hess
• Atomistic Studies of Intrinsic
Crack-Tip Plasticity, 35
• D. Farkas
• From Simulation to Theory
in the Physics of Deformation and Fracture, 40
• M.L. Falk and J.S. Langer
• Dynamic Fracture in Disordered
Media, 46
• R.L.B. Selinger and J.M. Corbett
MRS NEWS
• MRS Featured Volunteer, 52
ABSTRACTS
• Abstracts for June 2000 Journal of Materials Research, 58
DEPARTMENTS
• Research/Researchers,
3
• Washington
News, 9
• Resources, 10
• Upcoming
Conference, 51
• Education
Exchange, 52
• Historical
Note, 54
• Library:,
56
• Principles and Applications
of Tribology, B. Bhushan,
• reviewed by I.M. Hutchings;
• Properties, Processing and
Application of Indium Phosphide, T.P. Pearsall, ed.,
• reviewed by T. Vere.
• Calendar,
61
• Classified, 66
• Advertisers in This
Issue, 70
• Posterminaries,
72
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On the Cover:
Four examples of atomistic simulation
of fracture. Upper left: Lower surface of a crack that encounters
an obstacle as it propagates along a planar interface; blue atoms
remain bonded across the crack plane. See the article that begins
on p. 46. Upper right: Comparison of crack propagation in silicon
using tight-binding (TB) atoms (left-hand column) and environment-dependent
interatomic potential (EDIP) atoms (right-hand column) for the
crack tip, respectively. Using TB, brittle fracture proceeds
via interplanar cleavage. Using EDIP, crack motion initiates
at a much higher strain (8.3%) and proceeds with blunting and
amorphization at the crack tip. See the article that begins on
p. 27. Lower left: A crack propagating along a grain boundary
in ordered NiAl. See the article that begins on p. 35. Lower
right: Ductile fracture in a two-dimensional amorphous solid.
See the article that begins on p. 40.
