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混合型裂纹扩展的动光弹-数值分析

DYNAMIC PHOTOELASTIC-NUMERICAL ANALYSIS OF MIXED-MODE CRACK PROPAGATION

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【作者】 许立明； 费志中；

【Author】 Northern Jiaotong University Xu Liming and Fei Zhizhong

【机构】 北方交通大学； 北方交通大学；

【摘要】 <正> 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.

【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.

【关键词】 混合型； 裂纹扩展； 动光弹-数值分析；
【Key words】 mixed-mode； crack propagation； dynamic photoelastic-numerical analysis.；
  • 【文献出处】 航空学报 ,Acta Aeronautica Et Astronautica Sinica , 编辑部邮箱 ,1989年05期
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