Thermo-elasto-plastic stresses in functionally graded materials subjected to thermal loading taking residual stresses of the fabrication process into consideration |
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| Affiliation: | 1. Graduate School of Science and Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432, Japan;2. Department of Mechanical Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432, Japan;1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China;2. Science Island Branch of Graduate School, University of Science & Technology of China, Hefei, 230031, China;3. Hefei Center for Physical Science and Technology, Hefei, 230022, China;4. Hefei Science Center of Chinese Academy of Sciences, Hefei, 230027, China;1. Graduate School of Natural and Applied Sciences, Erciyes University, Kayseri 38039, Turkey;2. Department of Mechanical Engineering, Erciyes University, Kayseri 38039, Turkey;1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong 510640, China;2. Guangzhou Institute of Measuring and Testing Technology, Guangzhou, Guangdong 510663, China;1. Department of Mechanical Engineering, LMSS, University of Djillali Liabes, Sidi Bel Abbes, Algeria;2. Department of Mechanical Engineering, LMPM, University of Djillali Liabes, Sidi Bel Abbes, Algeria;3. Department of Mechanical Engineering, RTF, Ecole Nationale Polytechnique Maurice Audin, Oran, Algeria;4. Department of Civil Engineering, Faculty of Engineering, Munzur University, Tunceli, Turkey;1. Mechanical Design Department, Faculty of Engineering, El-Mataria, Helwan University, P.O. Box 11718, Cairo, Egypt;2. Mechanical Engineering Department, College of Engineering and Technology-Cairo Campus, Arab Academy for Science, Technology and Maritime Transport (AASTMT), Cairo, Egypt |
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| Abstract: | Functionally graded materials (FGMs) have recently been received with considerable interest, primarily as high temperature resistant materials for space vehicles subjected to high temperature environment. FGMs are one of the composite materials and consist of continuous change of composition of different material components from one surface to the other. FGMs usually fabricated at high temperature at which the FGMs have stress free condition. After the FGMs cooled from the fabrication temperature to the room temperature residual thermal stresses produced. In this paper, elasto-plastic thermal stresses in a rectangular plate (FGP) of a particle reinforced composite FGM are treated by finite element method due to the microscopic combination law when the FGP is subjected to three kinds of temperature conditions, first is cooling from the fabricated temperature to the room temperature, second is heating and last is heating after cooling from the fabricated temperature. In the analysis, the thermal stress constitutive equation of a particle-reinforced composite taking temperature change and damage process into consideration is used. The effects of the particle volume fraction and the three kinds of temperature conditions on the stresses in the matrix, stresses in the particle and macroscopic stress are discussed. |
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