| 应变损伤材料平面应力动态裂纹尖端场的渐近解 |
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| 引用本文： | 王振清.应变损伤材料平面应力动态裂纹尖端场的渐近解[J].应用力学学报,1993,10(3):90-93. |
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| 作者姓名： | 王振清 |
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| 作者单位： | 哈尔滨船舶工程学院 哈尔滨 |
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| 摘 要： | 采用塑性动力学方程,对应变损伤材料的平面应力动态裂纹尖端场进行了渐近分析。假定损伤规律服从反比例关系,对平面应力问题,导出了本构方程,并给出了动态弹塑性场的渐近解,揭示了场的渐近特性。
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| 关 键 词： | 材料力学 损伤 裂纹尖端场 |
The Asymptotic Solution to the Plane Stress Dynamic Crack-tip Field in a Strain-damage Material |
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| Wang Zhenqing.The Asymptotic Solution to the Plane Stress Dynamic Crack-tip Field in a Strain-damage Material[J].Chinese Journal of Applied Mechanics,1993,10(3):90-93. |
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| Authors: | Wang Zhenqing |
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| Institution: | Harbin Chuanbo Gongcheng Xueyuan |
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| Abstract: | Based on plastic-dynamic equations, the asymptotic behaviour of the near-tip fields for a plane stress tensile crack propagating in a strain-damage material has been studied. We assumed that the damage rule is given asymptotically in a form like inverse ratio strain softening. For the plane stress problem the constitutive relation is derived and asymptotic solutions of the dynamic elastic-plastic field are given. The asymptotic behaviour of the field is revealed. |
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| Keywords: | strain-damage material asymptotic analysis strain singularity crack-tip field |
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