唐春安

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME

其他任职:国际岩石力学与岩石工程学会(ISRM)中国国家小组副主席

性别:男

毕业院校:东北大学

学位:博士

所在单位:土木工程系

办公地点:综合实验四号楼330

联系方式:tca@mail.neu.edu.cn

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3D modelling of brittle fracture in heterogeneous rocks

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论文类型:会议论文

发表时间:2006-01-01

收录刊物:CPCI-S

页面范围:1799-+

关键字:failure process; numerical simulation; elastic damage

摘要:Owing to the vast developments in computer science and technologies, recent years have seen a renewal of interest in the computational modelling of material failure in meso-macro scale. The multi-scale capability of the method is recognized as a promising tool in attacking formidable problems in fracture mechanics for heterogeneous media, such as rock, concrete or ceramic, and, indeed, has been successfully applied to the various engineering problems for industrial materials. These models have established themselves as a powerful and realistic alternative to the non-local continuum models for softening damage and fracturing. However, the quantitative macro response (such as stress-strain) from most of the current meso-mechanical models is not close enough to the behaviour of real materials. One reason for this shortcoming is that most of these models are two-dimensional. In this paper, a three-dimensional material failure process analysis model, MFPA(3D), is proposed. The failure behaviour of brittle materials can be simulated by this three-dimensional model. The model can realistically simulate the inelastic triaxial behaviour, strength limits, and post-peak response for both tension and compression. The capabilities of the MFPA ID model to generate a wide range of damage morphologies are examined in this paper.