PROBABILITY DENSITY EVOLUTION ANALYSIS OF THE BIAXIAL ENVELOPE MODEL FOR CONCRETE MATERIAL

摘要：

Efforts are made in this paper to investigate the probability performance of the biaxial strength envelope for concrete material. Firstly, a constitutive model in 2-D is introduced with the corresponding formulations of biaxial strength envelop for concrete which are developed by the authors research group. On the other hand, by introducing the energy equivalent strain, the 2-D stochastic damage evolution is established based on the 1-D stochastic damage evolution function, which is developed based on the 1-D stochastic field model. Furthermore, according to the generalized probability density evolution method (PDEM), the probability density function (PDF) of the biaxial strength envelops and their evolution trails are simulated. This paper provides a general procedure to capture the probability information of the stochastic performances of concrete under multiaxial loading condition.

关键词： multiazial constitutive model stochastic damage model probability density evolution method energy equivalent strain

作者: Sha-Jie Zeng Jie Li

作者单位: School of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P.R. China

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 83-88

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）