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Dynamic thermo-mechanical coupled response of random particulate composites:A statistical two-scale method |
Yang Zi-Hao (杨自豪)a, Chen Yun (陈云)b, Yang Zhi-Qiang (杨志强)a, Ma Qiang (马强)c |
a Department of Applied Mathematics, Northwestern Polytechnical University, Xi'an 710129, China; b College of Computer Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; c LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract This paper focuses on the dynamic thermo-mechanical coupled response of random particulate composite materials. Both the inertia term and coupling term are considered in the dynamic coupled problem. The formulation of the problem by a statistical second-order two-scale (SSOTS) analysis method and the algorithm procedure based on the finite-element difference method are presented. Numerical results of coupled cases are compared with those of uncoupled cases. It shows that the coupling effects on temperature, thermal flux, displacement, and stresses are very distinct, and the micro-characteristics of particles affect the coupling effect of the random composites. Furthermore, the coupling effect causes a lag in the variations of temperature, thermal flux, displacement, and stresses.
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Received: 05 November 2013
Revised: 19 February 2014
Accepted manuscript online:
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PACS:
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65.40.-b
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(Thermal properties of crystalline solids)
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68.35.-p
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(Solid surfaces and solid-solid interfaces: structure and energetics)
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Fund: Project supported by the Special Funds for the National Basic Research Program of China (Grant No. 2012CB025904) and the National Natural Science Foundation of China (Grant Nos. 90916027 and 11302052). |
Corresponding Authors:
Yang Zi-Hao
E-mail: yzh@mail.nwpu.edu.cn
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About author: 65.40.-b; 68.35.-p |
Cite this article:
Yang Zi-Hao (杨自豪), Chen Yun (陈云), Yang Zhi-Qiang (杨志强), Ma Qiang (马强) Dynamic thermo-mechanical coupled response of random particulate composites:A statistical two-scale method 2014 Chin. Phys. B 23 076501
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