| 晶须增韧陶瓷基复合材料中微裂纹演化规律的描述 |
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| 引用本文： | 李文方 杜善义. 晶须增韧陶瓷基复合材料中微裂纹演化规律的描述[J]. 固体力学学报, 1995, 16(2): 106-113 |
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| 作者姓名： | 李文方 杜善义 |
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| 作者单位： | 华南理工大学机械二系，哈尔滨工业大学航天学院 |
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| 基金项目： | 博士点基金,华南理工大学基金 |
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| 摘 要： | 本文利用作者改进的等效夹杂理论和内容量理论，研究了晶须增韧陶瓷基复合材料中随机分布微裂纹的演化规律及其对材料力学性能的影响，同时考虑了热残余应变、晶须含量及长径比的影响，预报了材料的模量、非线性起始点、材料强度及非线性本构关系，给出了许多有意义的结论。
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| 关 键 词： | 裂纹 陶瓷基 复合材料 强度 本构关系 晶须增韧 |
EVOLUTION OF RANDOM MICROCRACKS IN WHISKER TOUGHENING CERAMIC MATRIX COMPOSITE MATERIALS |
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| Li Wenfang. EVOLUTION OF RANDOM MICROCRACKS IN WHISKER TOUGHENING CERAMIC MATRIX COMPOSITE MATERIALS[J]. Acta Mechnica Solida Sinica, 1995, 16(2): 106-113 |
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| Authors: | Li Wenfang |
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| Abstract: | The equivalent inclusion method and internal varable theory are employed to research the evolution of misoriented microcracks and their influence on the mechanic behaviours of whisker/ceramics composite materials. Meanwhile, the residual thermo-strain, the fraction and aspects of whiskers are considered and the effective modulus,the nonlinear initial load,strength and constitutive relation are estimated. Some important results are given. |
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| Keywords: | whisker microcrack ceramic matrix composite material (CMC ) strength nonlinear constitutive relation |
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