Title of article :
Formulation of a cohesive zone model for a Mode III crack
Author/Authors :
Zhang، نويسنده , , Wei and Deng، نويسنده , , Xiaomin، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
12
From page :
1818
To page :
1829
Abstract :
Cohesive zone models have been proven effective in modeling crack initiation and propagation phenomena. In this work, a possible form for a Mode III cohesive zone model is formulated from elastic stress and displacement fields around a crack with a cohesive zone ahead of the crack tip. A traction–separation relation for the model is derived as a direct consequence of the formulation, which establishes some intrinsic connections between properties of the cohesive zone and those of the bulk material. Interestingly, this model states that the von Mises effective stress in the cohesive zone is constant, which may be related to the bulk material’s yield stress and is consistent with the assumption made in conventional strip-yield elastic–plastic solutions.
Keywords :
Crack , cohesive zone model , Traction–separation relation , Mode III
Journal title :
ENGINEERING FRACTURE MECHANICS
Serial Year :
2005
Journal title :
ENGINEERING FRACTURE MECHANICS
Record number :
2341068
Link To Document :
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