所属单位：土木工程学院

发表刊物：Advanced Material Research

关键字：中文关键字：高强度高性能混凝土；单轴受拉应力；随机损伤；本构关系；微观单元，英文关键字：high strength and high performance concrete (HSHPC

摘要：Based on the kind of damage constitutive models, such as spring friction block model and spring model, which are proposed for ordinary concrete by domestic and foreign scholars, and taking the differences which are caused by different failure mechanisms in mechanical properties of HSHPC and ordinary concrete into consideration, this paper presents the spring-friction block model which is suitable for revealing the stochastic damage constitutive relation of HSHPC material subjected to uniaxial tension stress. By introducing the failure strain stochastic field of concrete material subjected to uniaxial compressive stress, and according to the principle of energy conservation during the process of damage failure, the stochastic damage constitutive equation of HSHPC material subjected to uniaxial tension stress is derived. The theoretical results agree well with the experimental conclusions, and it shown that the proposed stochastic damage constitutive relation can objectively reflect the proposed stochastic damage constitutive relation can objectively reflect the failure mechanism of HSHPC material. The research achievements will provide a basic research method for establishing the dynamic damage constitutive relation of HSHPC material.

备注：郑山锁

合写作者：陶青林,刘彬,谢明,胡义

第一作者：郑山锁

论文类型：期刊论文

卷号：卷：374-377

期号：期：

页面范围：页：2570-2573

是否译文：否

发表时间：2011-09-01