›› 2014, Vol. 23 ›› Issue (7): 76501-076501.doi: 10.1088/1674-1056/23/7/076501

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Dynamic thermo-mechanical coupled response of random particulate composites:A statistical two-scale method

杨自豪a, 陈云b, 杨志强a, 马强c   

  1. 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
  • 收稿日期:2013-11-05 修回日期:2014-02-19 出版日期:2014-07-15 发布日期:2014-07-15
  • 基金资助:
    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).

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   

  1. 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
  • Received:2013-11-05 Revised:2014-02-19 Online:2014-07-15 Published:2014-07-15
  • Contact: Yang Zi-Hao E-mail:yzh@mail.nwpu.edu.cn
  • About author:65.40.-b; 68.35.-p
  • Supported by:
    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).

摘要: 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.

关键词: random particulate composites, statistical second-order two-scale (SSOTS) analysis method, thermo-mechanical coupling effect, numerical algorithm

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.

Key words: random particulate composites, statistical second-order two-scale (SSOTS) analysis method, thermo-mechanical coupling effect, numerical algorithm

中图分类号:  (Thermal properties of crystalline solids)

  • 65.40.-b
68.35.-p (Solid surfaces and solid-solid interfaces: structure and energetics)