| 晶须增韧陶瓷的微裂纹演化及本构描述 |
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| 引用本文： | 李文方,杜善义.晶须增韧陶瓷的微裂纹演化及本构描述[J].宇航学报,1996,17(1):35-40. |
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| 作者姓名： | 李文方 杜善义 |
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| 作者单位： | 华南理工大学(李文方)，哈尔滨工业大学(杜善义) |
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| 摘 要： | 本文利用作者改进的等效夹杂理论研究了含随机分布晶须和微裂纹陶瓷的微裂纹演化及由其引起的材料本构非线性，定量计算了热残余应变、晶须含量及尺寸比的影响，对材料的微裂纹演化及破坏过程进行了数值模拟，得到了一些有意义的结论
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| 关 键 词： | 微裂纹演化 晶须增韧陶瓷 材料强度 非线性本构关系 |
EVOLUTION OF MICROCRACKS AND CONSTITUTIVE RELATION IN WHISKER TOUGHENED CERAMIC MATRIX COMPOSITES |
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| Li Wenfang.EVOLUTION OF MICROCRACKS AND CONSTITUTIVE RELATION IN WHISKER TOUGHENED CERAMIC MATRIX COMPOSITES[J].Journal of Astronautics,1996,17(1):35-40. |
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| Authors: | Li Wenfang |
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| Abstract: | The modified equivalent inclusion method by the authors is employed to study the evolution of misoriented microcracks and their influence on the mechanic behaviours of whisker/ceramic composites considering the residual thermo-strain,the fraction as well as the aspects of whiskers,and the effective modulus,the nonlinear initial load, strength and constitutive relation are estimated. Some important results are given. |
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| Keywords: | Evolution of microcracks Whisker toughened ceramics Strength Nonlinear constitutive relation |
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