Farid F. Abraham, Huajian Gao
Philosophical Magazine Letters
We describe the first of two large-scale atomic simulation projects on materials failure performed on the 12-teraflop ASCI (Accelerated Strategic Computing Initiative) White computer at Lawrence Livermore National Laboratory. This is a multimillion-atom simulation study of crack propagation in rapid brittle fracture where the cracks travel faster than the speed of sound. Our finding centers on a bilayer solid that behaves under large strain like an interface crack between a soft (linear) material and a stiff (nonlinear) material. We verify that the crack behavior is dominated by the local (nonlinear) wave speeds, which can be in excess of the conventional sound speeds of a solid.
Farid F. Abraham, Huajian Gao
Philosophical Magazine Letters
Markus J. Buehler, Alexander Hartmaier, et al.
Acta Mechanica Sinica/Lixue Xuebao
Jonathan A. Zimmerman, Farid F. Abraham, et al.
MRS Proceedings 1999
Farid F. Abraham
Physical Review B