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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APA Style
Gao, L., Zheng, X., Yao, Z. (2006). Numerical simulation of elastic behaviour and failure processes in heterogeneous material. Computers, Materials & Continua, 3(1), 25-36. https://doi.org/10.3970/cmc.2007.003.025
Vancouver Style
Gao L, Zheng X, Yao Z. Numerical simulation of elastic behaviour and failure processes in heterogeneous material. Comput Mater Contin. 2006;3(1):25-36 https://doi.org/10.3970/cmc.2007.003.025
IEEE Style
L. Gao, X. Zheng, and Z. Yao "Numerical Simulation of Elastic Behaviour and Failure Processes in Heterogeneous Material," Comput. Mater. Contin., vol. 3, no. 1, pp. 25-36. 2006. https://doi.org/10.3970/cmc.2007.003.025