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Mode-III Fracture Propagation in a Two-Dimensional Continuum Model with Frictional Dissipation

Published online by Cambridge University Press:  15 February 2011

Emily S.C. Ching
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, [email protected]
Hiizu Nakanishi
Affiliation:
Department of Physics, Kyushu University33, Fukuoka 812-81, Japan
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Abstract

Mode-III fracture propagation in a two-dimensional continuum model is studied the- oretically. The material is assumed to be isotropic and linearly elastic with a frictional dissipation, and the crack-tip r-gion is modeled by a cohesive zone. As the externally ap- plied load increases, the steady-state crack speed increases to a maximum value which can be substantially smaller than the sound speed when the dissipation is large. The fracture energy also becomes dependent on the velocity.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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