大连理工大学主页平台管理系统陈健云 Multi-scale EFG model for Simulating Concrete Material 陈健云

论文成果

Multi-scale EFG model for Simulating Concrete Material: 点击次数：; 发布时间： 2019-03-09; 发布时间：2019-03-09; 论文类型：期刊论文; 发表时间：2012-06-01; 发表刊物：INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN; 收录刊物：Scopus、EI、SCIE; 卷号：8; 期号：2; 页面范围：113-120; ISSN号：1569-1713; 关键字：Concrete; EFG; Multi-scale constitutive relation; Damage; Cracks; Hysteresis; 摘要：In this paper, a new multi-scale numerical model is presented using meshless element free Galerkin (EFG) method to simulate the multi-scale constitutive relation of concrete. The scale separation is based on the decomposition of the mesh free shape function into alpha and beta scales, similar decomposition is also adopted for the constitutive equations. And the constitutive relations in different scales for concrete are established. The multi-scale EFG model is utilized for discretization of components of concrete block, which are aggregate, cement and transition region. The strengths of these components are adopted according to Weibull distribution. Consequently, the multi-scale EFG model is applied to describe the evolutionary processes of damage, the propagation of cracks and the characteristics of hysteresis of concrete. The plain static analysis of concrete block is performed by using this model and the calculated result is discussed.

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教授博士生导师硕士生导师

性别：男

毕业院校：大连理工大学

学位：博士

所在单位：水利工程系

学科：水工结构工程. 防灾减灾工程及防护工程. 结构工程. 工程管理

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