| 硬化材料反平面应变Ⅲ型裂纹尖端塑性损伤分布 |
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| 引用本文： | 孙璞华,卫国.硬化材料反平面应变Ⅲ型裂纹尖端塑性损伤分布[J].强度与环境,1995(3):5-10. |
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| 作者姓名： | 孙璞华 卫国 |
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| 作者单位： | 西北纺织学院力学教研室!710048，西安，北京强度环境研究所!100076，北京9200信箱72分箱，西安交通大学工程力学系!710049 |
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| 基金项目： | 西安交通大学科研基金，机械结构强度与振动国家重点实验室基金 |
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| 摘 要： | 采用一种新的韧性损伤力学模型及非耦合解法，求得了硬化材料反平面应变（Ⅲ型）裂纹尖端损伤区的边界方程和塑性损伤的分布。以ＤＥ３６海洋平台钢及Ｃ－Ｍｎ结构钢为例作了具体分析，得到了一些有意义的结果。
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| 关 键 词： | 裂纹尖端 韧性断裂 损伤力学 硬化材料 |
Antiplane Strain Crack Tip Plastic Damage Field in Hardening Materials |
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| Sun Puhua, Wei Guo, Wang Tiejun.Antiplane Strain Crack Tip Plastic Damage Field in Hardening Materials[J].Structure & Environment Engineering,1995(3):5-10. |
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| Authors: | Sun Puhua Wei Guo Wang Tiejun |
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| Abstract: | A new ductile damage model proposed by the author and uncoupled approach are used to study the plastic damage field near antiplane strain crack tip in hardening materials. The boundary eguations of crack tip damage zone and the analogous sulotions of crack tip damage distribution are derived, respectively, from nonlinear and linear damage models. Typical examples for DE36 and C-Mn steels are presented. |
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| Keywords: | Crack tip Ductile fracture Injury Plastic strain |
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