ANALYSES OF STRAIN LOCALIZATION AND MECHANICAL BEHAVIOR OF MULTILINEAR STRAIN-SOFTENING MATERIALS IN UNIAXIAL TENSION

摘要：

The analytical solutions of the plastic swain distribution in tensile strain localization zone and post-peak stress-strain relation of a straight bar in uniaxial tension,undergoing linear strain-softening behavior at post-peak,are generalized into the multilinear strain-softening case.If the proper value for the ratio of the plastic modulus that is dependent on the tensile stress level to the width of the tensile strain localization zone is selected,then the post-peak complex mechanical behavior (including snap-back) of quasibrittle materials,such as rock and concrete,can be accurately modeled by the presently generalized mechanical model.

关键词： uniaxial tension strain localization multilinear strain-softening

作者: X.B.Wang

作者单位: Department of Mechanics and Engineering Sciences,Liaoning Technical University,Fuxin 123000,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1087-1091

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）