基于FLAC^(3D)二次开发的不连续变形模拟方法探讨

Discussion of discontinuous deformation simulation method based on secondary development of FLAC^(3D)

基于FLAC3D软件的内置接触面模型以及FISH语言的二次开发平台,在莫尔库仑模型的基础上进行了不连续变形模拟分析,解决了FLAC3D中接触面单元动态建模的问题,并进行了单轴压缩试验的对比分析。研究结果表明:模拟结果与试验测试结果吻合,能较好地反应裂纹的开裂扩展过程,基于FLAC3D不连续变形模拟分析方法是有效、可行的,为不连续变形的模拟提供了一个新的视角。

On the basis of Mohr model,a simulation of discontinuous deformation is studied using the FLAC3D inner interface model and the secondary development platform of the FISH language-compiles program included in FLAC3D software.The problem of dynamic modeling of interface elements in FLAC3D is solved,and uniaxial compression tests and comparative studies are carried out.The analytical results reveal that the discontinuous deformation simulation method based on FLAC3D is effective and feasible.The simulated results are similar to the experimental ones,and the proposed method can effectively catch the developing process of cracking.This study provides an new view for simulation of discontinuous deformation.