| 弥散复合材料弹性模量及弹性渗流失效 |
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| 引用本文： | 郑茂盛,郑修麟.弥散复合材料弹性模量及弹性渗流失效[J].航空学报,1991,12(3):202-205. |
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| 作者姓名： | 郑茂盛 郑修麟 |
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| 作者单位： | 西安电子科技大学
(郑茂盛)，西北工业大学(郑修麟) |
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| 摘 要： | 1.引言 弥散复合材料有效弹性模量的研究是一个极为重要的课题。它不但属于复合材料力学性能的研究范畴,而且对于材料弹性失效及其失效阈值等问题的研究也是必不可少的。 材料的弹性渗流失效是材料失效的一个基本类型。由于完整材料的弹性模量总是远大于零的有限值,而空洞等作为第二相时,其弹性模量可视为零。因此,在一个由空洞和完整
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| 关 键 词： | 弥散复合材料 弹性模量 弹性渗流失效 失效阈值 |
THE EFFECTIVE ELASTICITY MODULUS OF THE GRANULAR COMPO -SITE AND THE ELASTIC PERCOLATION FAILURE OF SOLIDS |
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| Xian University of Electronic Technology Zheng Maosheng Northwestern Polytechnical University Zheng Xiulin.THE EFFECTIVE ELASTICITY MODULUS OF THE GRANULAR COMPO -SITE AND THE ELASTIC PERCOLATION FAILURE OF SOLIDS[J].Acta Aeronautica et Astronautica Sinica,1991,12(3):202-205. |
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| Authors: | Xian University of Electronic Technology Zheng Maosheng Northwestern Polytechnical University Zheng Xiulin |
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| Institution: | Xian University of Electronic Technology Zheng Maosheng Northwestern Polytechnical University Zheng Xiulin |
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| Abstract: | Expressions for calculating the effective elasticity modulus of the granular composite are developed based on the solution of the overmatching problem in elastic mechanics. Then, systems with 2 phases are considered and 2 typical examples are dealt with. As is shown, the predicted results is in good agreement with the results given in literature. Furthermore, taking the voids in materials as the second phase with zero elasticity modulus, one can easily obtain the elastic percolation failure phenomenon and the threshold of failure. It is found that the value of the threshold of the elastic percolation failure given in this paper agrees well with the results given by other. |
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| Keywords: | granular composite elasticity modulus elastic percolation failure failure thresholds |
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