Molecular Dynamics Simulation of Brittle Fracture in Silicon

J. G. Swadener; M. I. Baskes; M. Nastasi

doi:10.1103/PhysRevLett.89.085503

Molecular Dynamics Simulation of Brittle Fracture in Silicon

J. G. Swadener
, M. I. Baskes
, M. Nastasi

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

144 Scopus citations

Abstract

Brittle fracture in silicon is simulated with molecular dynamics utilizing a modified embedded atom method potential. The simulations produce propagating crack speeds that are in agreement with previous experimental results over a large range of fracture energy. The dynamic fracture toughness is found to be equal to the energy consumed by creating surfaces and lattice defects in agreement with theoretical predictions. The dynamic fracture toughness is approximately [Formula presented] of the static strain energy release rate, which results in a limiting crack speed of [Formula presented] of the Rayleigh wave speed.

Original language	English
Journal	Physical Review Letters
Volume	89
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.89.085503
State	Published - Jan 1 2002

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title = "Molecular Dynamics Simulation of Brittle Fracture in Silicon",

abstract = "Brittle fracture in silicon is simulated with molecular dynamics utilizing a modified embedded atom method potential. The simulations produce propagating crack speeds that are in agreement with previous experimental results over a large range of fracture energy. The dynamic fracture toughness is found to be equal to the energy consumed by creating surfaces and lattice defects in agreement with theoretical predictions. The dynamic fracture toughness is approximately [Formula presented] of the static strain energy release rate, which results in a limiting crack speed of [Formula presented] of the Rayleigh wave speed.",

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N2 - Brittle fracture in silicon is simulated with molecular dynamics utilizing a modified embedded atom method potential. The simulations produce propagating crack speeds that are in agreement with previous experimental results over a large range of fracture energy. The dynamic fracture toughness is found to be equal to the energy consumed by creating surfaces and lattice defects in agreement with theoretical predictions. The dynamic fracture toughness is approximately [Formula presented] of the static strain energy release rate, which results in a limiting crack speed of [Formula presented] of the Rayleigh wave speed.

AB - Brittle fracture in silicon is simulated with molecular dynamics utilizing a modified embedded atom method potential. The simulations produce propagating crack speeds that are in agreement with previous experimental results over a large range of fracture energy. The dynamic fracture toughness is found to be equal to the energy consumed by creating surfaces and lattice defects in agreement with theoretical predictions. The dynamic fracture toughness is approximately [Formula presented] of the static strain energy release rate, which results in a limiting crack speed of [Formula presented] of the Rayleigh wave speed.

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DO - 10.1103/PhysRevLett.89.085503

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JO - Physical Review Letters

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Molecular Dynamics Simulation of Brittle Fracture in Silicon

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