Combined Self-Consistent and Mori-Tanaka Approach for Evaluation of Elastoplastic Property of Particulate Composites
Suppose the particles in with volume fraction c in an RVE of a particulate composite are separated into two groups, with volume fractions (1-?-1)c and c/? over the RVE, respectively, a combined self-consistent and Mori-Tanaka approach is proposed for the evaluation of the effective elastoplastic property of particulate composites. The particles in Group I and the original matrix form a fictitious matrix, and its mechanical property is determined with the self-consistent scheme. The RVE of the composite consists of the fictitious matrix and Group of particles, and its mechanical property is determined with the Mori-Tanaka scheme. The conventional Mori-Tanaka scheme and self-consistent scheme can be obtained as the two limit cases as ? =1 and ? =∞, respectively. The constitutive behavior of the particles in Group I is identical with that in Group II. The effective elastoplastic behavior of some typical particulate composites is evaluated, and the comparison with the experimental results demonstrates the validity of the proposed approach. The induced λ can serve as a parameter related to the actual property of composites and identified by experiment, for a more accurate evaluation of the effective elastoplastic property of particulate composites.
Particulate composite Elastoplasticity Effective property Mean-field approach
Xianghe Peng Ning Hu Xuesong Long Hengwei Zheng
Department of Engineering Mechanics,Chongqing University,Chongqing,400044,China Department of Engineering Mechanics,Chongqing University,Chongqing,400044,China;Department of Mechan
国际会议
北京
英文
1-11
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）