A NEW CONCEPT OF CONCRETE CONSTITUTIVE MODEL:THE FRACTAL-MICROPLANE MODEL

摘要：

　　Concrete constitutive models have significant influences on the result of finite element modeling of concrete structures.In this paper,based on the microplane model,a new concept of concrete constitutive model is proposed,which is called the fractal-microplane model.In the proposed fractal-microplane model,the fractal characteristics of failure surfaces in concrete are accounted on the microscopic planes of the model (i.e.,microplanes).The verifications indicate that the fractal-microplane model can represent the size effect on strength of concrete material.The fractal-microplane model can provide an approach to deeply investigating the effects on concrete performance due to the concrete compositions.

关键词： Microplane model fractal size effect finite element modelling concrete constitutive model

作者: Hanliang Wu Yuanfeng Wang

作者单位: Research Institute of Highway, Ministry of Transportation, Beijing 100088, P.R.China School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, P.R.China

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 1286-1291

在线出版日期: 2012-11-17（万方平台首次上网日期，不代表论文的发表时间）