| 陶瓷/金属梯度层的热应力分析及缓和特性设计 |
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| 引用本文： | 张开银,吕运冰,肖金生,温冬生.陶瓷/金属梯度层的热应力分析及缓和特性设计[J].长沙交通学院学报,1999,15(1):34-38. |
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| 作者姓名： | 张开银 吕运冰 肖金生 温冬生 |
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| 作者单位： | 武汉交通科技大学,湖北,武汉,430063 |
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| 基金项目： | 国家自然科学基金，湖北省武汉市青年科技晨光计划 |
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| 摘 要： | 分别以陶瓷／金属复合平板和圆筒为研究对象，导出了功能梯度材料组份连接变化下的温度及热应力分布，并将ＺｒＯ２／ＮｉＣｒＡｌ复合板热应力分布的解析解与有限元结果进行了比较，对复合圆筒进行了组份分布的热应力缓和特性设计，分析结果表明，用连续模型计算，可进一步减缓功能梯度材料层间的应力突变和残余应力，便于结构的优化设计。
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| 关 键 词： | 功能梯度材料 热应力 圆筒 平板 |
| 修稿时间： | 1997-12-26 |
Thermal stress analysis and thermal stress relaxation design on ceramic-metal functionally gradient materials |
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| ZHANG Kai-yin,LU Yun-bing,XIAO Jin-sheng,WEN Dong-sheng.Thermal stress analysis and thermal stress relaxation design on ceramic-metal functionally gradient materials[J].Journal of Changsha Communications University,1999,15(1):34-38. |
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| Authors: | ZHANG Kai-yin LU Yun-bing XIAO Jin-sheng WEN Dong-sheng |
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| Abstract: | By studying
a laminated plate and a laminated cylinder made of ceramic-metal Functionally Gradient
Material(FGM) respectively, the formulas of the temperature and the steady thermal stress
on the models are obtained. Then the paper compares the stress with that of the Finite
Element Method for a ZrO2-NiCrAl plate, and carries out the thermal stress
relaxation design for different ZrO2-NiCrAl FGM compositions cylinder
respectively. The calculated results shows that the FGM continuous model is good for
relaxing the stress between any two laminates. It is also useful for thermal stress
analysis and structure optimal design. |
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