| 脆性材料的各向异性损伤及其测量方法 |
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| 引用本文： | 冯西桥,余寿文.脆性材料的各向异性损伤及其测量方法[J].清华大学学报(自然科学版),1995(2). |
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| 作者姓名： | 冯西桥 余寿文 |
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| 作者单位： | 清华大学工程力学系 |
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| 基金项目： | 国家自然科学基金,国家教委博士点基金 |
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| 摘 要： | 利用微裂纹扩展区损伤模型，以单向拉伸为例，讨论了脆性材料中微裂纹损伤引起的本构关系各向异性，定量说明了损伤对不同方向的柔度张量分量、波桑比的影响，揭示了脆性材料损伤本构关系的一些规律。并在此基础上提出了一种测量脆性材料损伤状态的柔度等效方法。
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| 关 键 词： | 微裂纹损伤，各向异性，损伤测量 |
Anisotropic damage in brittle materials and its experimental measurement method |
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| Feng Xiqial,Yu Shouwen.Anisotropic damage in brittle materials and its experimental measurement method[J].Journal of Tsinghua University(Science and Technology),1995(2). |
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| Authors: | Feng Xiqial Yu Shouwen |
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| Abstract: | By using the damage model of domain of microcrack growth(DMG)for brittle materials,the anisotropy of constitutive relation due to microcracks, taken the uniaxial tension as an illustration,is discussed in this paper. The influences of damage on some components of effective compliance tensor and Poisson's ratios in differnt of damage on some show quantitatively.And based on these analyses,an experimental method of compliance equivalence is suggested to measure the damage state in a brittle material. |
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| Keywords: | microcack damage anisotropy measurement of damage |
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