| 金属─陶瓷梯度材料的热弹塑性分析 |
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| 引用本文： | 王继辉,张清杰,吴代华.金属─陶瓷梯度材料的热弹塑性分析[J].复合材料学报,1996,13(2):89-93. |
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| 作者姓名： | 王继辉 张清杰 吴代华 |
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| 作者单位： | 武汉工业大学结构工程和工程力学系, 武汉 430070 |
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| 摘 要： | 本文对金属-陶瓷梯度材料的稳态热弹塑性行为进行了研究.文中首先采用平均场和自洽弹塑性微观力学方法预测了金属-陶瓷梯度材料的非弹性性能,然后用非线性有限元法计算了材料制备过程中的热弹塑性应力.结果表明,梯度材料的热弹塑性行为对梯度材料的热应力缓和性能有显著影响.
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| 关 键 词： | 梯度材料 热弹塑性 热应力缓和 微观力学 |
| 收稿时间： | 1994-08-05 |
THERMO-ELASTO-PLASTIC STRESS ANALYSIS OF CERAMIC-METAL GRADIENT MATERIALS |
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| Wang Jihui,Zhang Qingjie,Wu Daihua.THERMO-ELASTO-PLASTIC STRESS ANALYSIS OF CERAMIC-METAL GRADIENT MATERIALS[J].Acta Materiae Compositae Sinica,1996,13(2):89-93. |
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| Authors: | Wang Jihui Zhang Qingjie Wu Daihua |
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| Affiliation: | Department of Structural Engineering and Engineering Mechanics, Wuhan University of Technology, Wuhan 430070 |
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| Abstract: | The steady thermo-elasto-plastic behavior of ceramic-metal functionally gradient materials(FGMs)was investigated by considering an Al2O3/Ni gradient material.The inelastic properties of the gradient interlayers were first evaluated using mean-field micromechanics and elasto-plastic self-consistent micromechanics method,and then an elastoplastic finite element model was used to calculate thermal stress in the material.The results show that the thermo-elasto-plastic behavior exerts significant influences on the thermal stress relaxation characteristics of the FGMs. |
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| Keywords: | functionally gradient materials thermo-elasto-plasticity thermal stress relaxation micromechanics |
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