| 金属基复合材料的热循环影响 |
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| 引用本文： | 吴效白,廖力,胡更开. 金属基复合材料的热循环影响[J]. 北京理工大学学报(英文版), 1998, 7(4): 351-358 |
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| 作者姓名： | 吴效白 廖力 胡更开 |
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| 作者单位： | 北京理工大学应用力学系!北京，100081 |
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| 摘 要： | 目的对金属基复合材料的热循环性能进行预测，方法基于Eshelby夹杂理论及由此而导出的金属基复合材料的本构模型和弹性约束法预测该材料的恒温疲劳与热疲劳性能，结果与结论从理论上对SiC颗粒增强AlZxxx-T4复合材料进行了分析；根据基体的本构关系，复合材料在不同加载条件下（如不同载荷率、力学和温度载荷等）的力学行为可以定量地预测出来，并且复合材料的热棘齿效应也可用给出的模型进行预测。
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| 关 键 词： | 金属基复合材料 热力学行为 细观力学 |
Thermal Cyclic Effects of Metal Matrix Composites |
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| Wu Xiaobai,Liao Li and Hu Gengkai. Thermal Cyclic Effects of Metal Matrix Composites[J]. Journal of Beijing Institute of Technology, 1998, 7(4): 351-358 |
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| Authors: | Wu Xiaobai Liao Li Hu Gengkai |
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| Affiliation: | Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081;Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081;Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081 |
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| Abstract: | Aim To simulate the thermal cyclic effects of metal matrix compeithe. Methods Based on Eshelby′s inclusion theory, a constitutive model for metal matrix composites and an elastic constraint method were formulated to predict the cyclic isothermal and cyclic thermomechanical behaviors of metal matrix composites. Results and Conclusion A SiC reinforced A1 2xxx-T4 composite was studied theoretically with the model. With the constitutive relation of the matrix, the mechanical behaviors of the composite under different loading condition, such as different loading rates, mechanical and thermal mechanical cyclic loading, can be quantitatively predicted. The thermal ratchetting effect of the composite can be predicted by the model. |
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| Keywords: | metal matrix composite thermomechanical behavior micromechanics |
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