| EFFECTS OF MICROSTRUCTURE ON THE MACROSCOPIC ELASTO-PLASTIC PROPERTIES OF METAL MATRIX COMPOSITES |
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| 引用本文： | Chen Haoran Su Xiaofeng Tang Limin (Research Institute of Engineering Mechanics,Dalian University of Technology,Dalian 116023,China). EFFECTS OF MICROSTRUCTURE ON THE MACROSCOPIC ELASTO-PLASTIC PROPERTIES OF METAL MATRIX COMPOSITES[J]. Acta Mechanica Solida Sinica, 1996, 9(1): 52-58. DOI: 10.1007/BF02208377 |
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| 作者姓名： | Chen Haoran Su Xiaofeng Tang Limin (Research Institute of Engineering Mechanics Dalian University of Technology Dalian 116023 China) |
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| 作者单位： | Research Institute of Engineering Mechanics，Dalian University of Technology，Dalian 116023，China |
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| 基金项目： | Supported by the Key Project of the Natural Science Foundation of China |
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| 摘 要： | The generalized self-consistent finite-element iterative averaging method was adopted toanalyze the elasto-plastic tensile properties of SiC whiskers reinforced aluminum matrix composites.The effects of varying fiber's aspect ratio and volume fraction on the macroscopic elasto-plastic defor-mation of the composites were studied.By the analysis of microscopic stress fields,the relation be-tween the propagation of the elasto-plastic region in the matrix and the macroscopic elasto-plastic de-formation of composites was discussed.It was found that the propagation of the plastic region in thematrix between the fiber's ends would affect prominently the elasto-plastic tensile behaviour of thecomposites.It was shown that the characterization of the stress-strain response in terms of the 0.2%offset yield strength is incomplete.
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| 收稿时间： | 1995-10-17 |
EFFECTS OF MICROSTRUCTURE ON THE MACROSCOPIC ELASTO-PLASTIC PROPERTIES OF METAL MATRIX COMPOSITES |
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| Chen Haoran Su Xiaofeng Tang Limin. EFFECTS OF MICROSTRUCTURE ON THE MACROSCOPIC ELASTO-PLASTIC PROPERTIES OF METAL MATRIX COMPOSITES[J]. Acta Mechanica Solida Sinica, 1996, 9(1): 52-58. DOI: 10.1007/BF02208377 |
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| Authors: | Chen Haoran Su Xiaofeng Tang Limin |
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| Affiliation: | (1) Research Institute of Engineering Mechanics, Dalian University of Technology, 116023 Dalian, China |
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| Abstract: | The generalized self-consistent finite-element iterative averaging method was adopted to analyze the elasto-plastic tensile properties of SiC whiskers reinforced aluminum matrix composites. The effects of varying fiber's aspect ratio and volume fraction on the macroscopic elasto-plastic defor- mation of the composites were studied.By the analysis of microscopic stress fields,the relation be- tween the propagation of the elasto-plastic region in the matrix and the macroscopic elasto-plastic de- formation of composites was discussed.It was found that the propagation of the plastic region in the matrix between the fiber's ends would affect prominently the elasto-plastic tensile behaviour of the composites.It was shown that the characterization of the stress-strain response in terms of the 0.2% offset yield strength is incomplete. |
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| Keywords: | metal-matrix composites microstructure macroscopic elasto-plastic behaviour microscopic plastic region generalized self-consistent finite-element iterative averaging method |
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