东南大学学报（自然科学版）Issue(5)：969-974,6.DOI:10.3969/j.issn.1001-0505.2015.05.026
应变硬化水泥基复合材料单轴滞回本构模型
Uniaxial cyclic constitutive model for strain hardening cementitious composites
摘要
Abstract
For effectively simulating the seismic behavior of strain hardening cementitious composites (SHCC)members,a uniaxial cyclic constitutive model for SHCC was proposed.The ascending branch of the compressive envelop curve was imitated by using the form of parabolic curve;while the bilinear form was adopted for the descending branch.A trilinear form was used to imitate the as-cending,strain-hardening and descending branches of tensile stress-strain curve.By the method of setting reference point,the rules of unloading process were determined in consideration of the partial unloading-reloading scheme.Furthermore,the transition between tension and compression was con-sidered in the cyclic model.The proposed cyclic constitutive model was coded by OpenSEES soft-ware and applied to simulate the material and component tests.The simulation results indicate that the proposed model is reasonably accurate in simulating the mechanical properties of SHCC and the cyclic behavior of SHCC flexural element.关键词
应变硬化水泥基复合材料/反复加载/单轴滞回本构模型/非线性有限元分析Key words
strain hardening cementitious composites (SHCC)/cyclic loading/uniaxial cyclic con-stitutive model/nonlinear finite element analysis分类
建筑与水利引用本文复制引用
吴畅,潘钻峰,孟少平..应变硬化水泥基复合材料单轴滞回本构模型[J].东南大学学报（自然科学版）,2015,(5):969-974,6.基金项目
国家自然科学基金青年基金资助项目（51208093）、教育部博士点基金资助项目（20120092120021）． （）
