Elastic-plastic analysis near the crack surface region on a mode III crack under a pair of point forces | Zendy

Huang Feng | Zendy; Zhijian Yi | Zendy; Jianyi Gu | Zendy; Xiaobing He | Zendy; Chaohua Zhao | Zendy; Ya Li | Zendy

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Elastic-plastic analysis near the crack surface region on a mode III crack under a pair of point forces

Author(s) -

Huang Feng,

Zhijian Yi,

Jianyi Gu,

Xiaobing He,

Chaohua Zhao,

Ya Li

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4954082

Subject(s) - crack tip opening displacement , materials science , crack closure , crack growth resistance curve , surface (topology) , plane (geometry) , plasticity , stress field , point (geometry) , composite material , mode (computer interface) , mechanics , fracture mechanics , geometry , structural engineering , finite element method , mathematics , physics , engineering , computer science , operating system

The crack line analysis method is used to obtain the near-crack-surface stress field of a mode III crack loaded by a pair of anti-plane point forces in an elastic-perfectly plastic material, which expands the research method from the crack line region to the crack surface region. The stresses in the plastic region, the length of the plastic region, and the geometry of the elastic-plastic boundary near the surface area of the crack are obtained analytically. Further, the maximum value of size of the plastic region along the surface of the crack is obtained. The results are sufficiently precise near the surface area of the crack, as the usual small-scale yielding condition has been given up in the analysis

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