| 短纤维增强金属基复合材料的细观塑性变形与宏观性能 |
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| 引用本文： | 杨庆生,唐立民.短纤维增强金属基复合材料的细观塑性变形与宏观性能[J].复合材料学报,1995,12(3):76-82. |
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| 作者姓名： | 杨庆生 唐立民 |
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| 作者单位： | 清华大学工程力学系，大连理工大学 |
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| 摘 要： | 本文研究单向短纤维增强金属基复合材料的细现弹塑性变形和宏观弹塑性响应。假设纤维是弹性体,基体是弹性粘塑性体。利用有限元法分析了复合材料可周期性重复的单胞的细观弹塑性应力场;利用体积平均的均匀化方法研究了复合材料的弹塑性应力-应变关系。本工作着重分析复合材料中纤维与纤维、纤维与周围基体的相互作用机理。
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| 关 键 词： | 金属基 短纤维 复合材料弹塑性 细观力学 有限元法 |
| 收稿时间： | 1993-07-12 |
| 修稿时间： | 1994-11-22 |
MICROPLASTIC DEFORMATION AND AVERAGE BEHAVIOUR OF METAL MATRIX COMPOSITES REINFORCED BY SHORT FIBERS |
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| Yang Qingsheng.MICROPLASTIC DEFORMATION AND AVERAGE BEHAVIOUR OF METAL MATRIX COMPOSITES REINFORCED BY SHORT FIBERS[J].Acta Materiae Compositae Sinica,1995,12(3):76-82. |
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| Authors: | Yang Qingsheng |
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| Affiliation: | 1. Tsinghua University, Beijing 100084;2. Dalian University of Technology, Dalian 116024 |
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| Abstract: | The present work focuses on the microscopic elastoplasticity deformation andoverall elastoplastic behaviour of metal matrix composites reinforced by short fibers. It isassumed that the fiber is elastic and the matrix elastic-viscoplastic,The nonliner finiteelement method is applied to investigate the elastoplastic stress fields of a unit cell,and thehomogeneity method based on the volume average conception is used to find the overallstress-strain relations of comdosites;The interaction mechanism of fiber-fiber and fiber-matrix is emphasized in this paper. |
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| Keywords: | metal matrix short fibers composites elastoplasticity micromechanics finiteelement method |
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