Implementation of a plastic-damage coupled model for distinct lattice model
In this study a plastic-damage coupled model is implemented in the distinct lattice spring model(DLSM).A plastic-damage coupled model is used as a constitutive model to take advantages of both damage and plastic models to properly simulate cyclic behaviour of brittle like materials under uniaxial tension loading.For this purpose,a simple framework for the combination of stress-based plasticity and strain based scalar damage is presented by using two variables named state variable and damage-plastic coupling coefficient.Then two variables are used to present different parts of force-deformation curve of cyclic response under uniaxial tension loading.For the study,distinct lattice spring model(DLSM)is applied to implement the plasticdamage coupled model into it.With comparing simulation result and experimental result,it is found that the brittle behaviour of material can be well predicted by the DLSM through the implemented plastic-damage coupled model.
Z.ALIABADIAN G.F.ZHAO
University of New South Wales, Sydney, Australia
国际会议
The 12th International Conference on Analysis of Discontinuous Deformation(第12届非连续变形分析国际大会)
武汉
英文
85-91
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）