Mode I steady-state crack propagation through a fully-yielded ligament in thin ductile metal foils

Wade R. Lanning,Camilla E. Johnson,Syed Saad Javaid,Christopher L. Muhlstein

Theoretical and Applied Fracture Mechanics（2019）

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摘要

•Cracks in thin metal sheets grow in three stages: initiation, transition, and steady-state.•Crack growth can be predicted from the material’s characteristic steady-state stress.•Steady-state growth cannot be characterized with conventional linear elastic or elastic-plastic fracture mechanics.

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关键词

Steady-state crack growth,Fracture toughness,Thin sheet,Ductile tearing,Stable crack growth,Fracture mechanics

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