Minimizing thermal residual stress in Ni/Al2O3 functionally graded material plate by volume fraction optimization

被引：0

作者：

Wei, Xing ^{[1
,2
]}

Chen, Wen ^{[1
]}

Chen, Bin ^{[1
]}

机构：

[1] State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Center for Numerical Simulation Software in Engineering and Sciences, College of Mechanics and Materials, Hohai University, Nanjing, Jiangsu,210098, China

[2] College of Civil Engineering and Architecture, East China Jiaotong University, Nanchang,330013, China

来源：

Computers, Materials and Continua | 2015年 / 48卷 / 01期

关键词：

Volume fraction - Failure (mechanical) - Genetic algorithms - Residual stresses - Beams and girders;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The thermal residual stress in the fabrication of functionally graded material (FGM) systems can give rise to various mechanical failures. For a FGM system under a given fabrication environment, the thermal residual stresses are determined by the spatial distribution of its constituent components. In this study, we optimize a Ni/Al2O3 FGM plate aiming at minimizing the thermal residual stresses through controlling its compositional distribution. Material properties are graded in the thickness direction following a power law distribution in terms of the volume fractions of constituents (P-FGM). An analytical model and a hybrid genetic algorithm with the pattern search are employed to predict and to minimize the thermal residual stresses. Copyright © 2015 Tech Science Press.

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