Table of Content

Open Access

ARTICLE

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.

Keywords

Heterogeneous materials, Weibull distribution, Elastic-brittle model, Failure process, Finite element method.

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.



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.
  • 1474

    View

  • 1157

    Download

  • 0

    Like

Share Link

WeChat scan