航空学报 > 1989, Vol. 10 Issue (5): 284-287

混合型裂纹扩展的动光弹-数值分析

许立明, 费志中   

  1. 北方交通大学
  • 收稿日期:1988-03-25 修回日期:1900-01-01 出版日期:1989-05-25 发布日期:1989-05-25

DYNAMIC PHOTOELASTIC-NUMERICAL ANALYSIS OF MIXED-MODE CRACK PROPAGATION

Xu Liming, Fei Zhizhong   

  1. Northern Jiaotong University
  • Received:1988-03-25 Revised:1900-01-01 Online:1989-05-25 Published:1989-05-25

摘要:

The K field parameters of K1, KI, and *ox at the crack tip associated with crack high-velocity curving of epoxy resin specimen under impact tension are determined. The parameters obtained are used to construct the theoretical isochromatic fringe patterns fitting the experimental data. The curves of dynamic relation between stress intensity factor and crack length is also given.

关键词: 混合型, 裂纹扩展, 动光弹-数值分析

Abstract:

The K field parameters of K1, KI, and *ox at the crack tip associated with crack high-velocity curving of epoxy resin specimen under impact tension are determined. The parameters obtained are used to construct the theoretical isochromatic fringe patterns fitting the experimental data. The curves of dynamic relation between stress intensity factor and crack length is also given.

Key words: mixed-mode, crack propagation, dynamic photoelastic-numerical analysis