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Numerical Simulation of Elastic Behaviour and Failure Processes in Heterogeneous Material

Lingfei Gao1, Xiaoping Zheng1,2, Zhenhan Yao1

Department of Engineering Mechanics, Tsinghua University, Beijing, 100084 China.
Corresponding author: E-mail:zhengxp@mail.tsinghua.edu.cn

Computers, Materials & Continua 2006, 3(1), 25-36. https://doi.org/10.3970/cmc.2007.003.025

Abstract

A general numerical approach is developed to model the elastic behaviours and failure processes of heterogeneous materials. The heterogeneous material body is assumed composed of a large number of convex polygon lattices with different phases. These phases are locally isotropic and elastic-brittle with the different lattices displaying variable material parameters and a Weibull-type statistical distribution. When the effective strain exceeds a local fracture criterion, the full lattice exhibits failure uniformly, and this is modelled by assuming a very small Young modulus value. An auto-select loading method is employed to model the failure process. The proposed hybrid approach is applied to plane stress problems with fracture patterns and effective load-displacement curves presented to illustrate the full failure process.

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Cite This Article

L. . Gao, X. . Zheng and Z. . Yao, "Numerical simulation of elastic behaviour and failure processes in heterogeneous material," Computers, Materials & Continua, vol. 3, no.1, pp. 25–36, 2006.



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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