| 基于有效损伤体积的微缺陷损伤定义 |
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| 引用本文： | 李银平,王元汉.基于有效损伤体积的微缺陷损伤定义[J].华中科技大学学报(自然科学版),2001,29(5):98-99,102. |
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| 作者姓名： | 李银平 王元汉 |
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| 作者单位： | 华中科技大学土木工程学院 |
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| 基金项目： | 湖南省教委科研资助项目 |
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| 摘 要： | 基地有效损伤积概念提出一种新的表征微缺陷（微裂纹和微空洞）损佃的损伤变量定义，该定义较经典定义的物理意义更明确，可描述单个缺陷对材料宏观特性的影响，也可描术含多个微缺陷的材料行为，而且适合描述不同类型缺陷共存时各向异性损伤。
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| 关 键 词： | 损伤力学 微裂纹 微空洞 各向异性 有效损伤体积 微缺陷损伤 损伤变量 |
| 文章编号： | 1000-8616(2001)05-0098-02 |
The Micro Defect Damage Definition Based on the Effective Damaged Volume |
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| Li Yinping,Wang Yuanhan.The Micro Defect Damage Definition Based on the Effective Damaged Volume[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(5):98-99,102. |
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| Authors: | Li Yinping Wang Yuanhan |
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| Abstract: | The conceptual deficiency of the traditional definition of damage variable when damage is caused by a multitude of microcracks or/and microvoids is first pointed out and analyzed. Then based on the effective damaged volume, a definition of micro defect damage is proposed, being able to deal with the individual damage units, the evolution of systems of these damage units, and to describing the anisotropic damage of materials with different kinds of defects. |
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| Keywords: | damage mechanics microcrack microvoid anisotropy |
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