摘要
采用T-F(Tests and finite element analysis)方法,通过小尺寸圆环试样单轴压缩试验,引入单轴本构关系模型进行有限元迭代计算使得模拟计算的试样变形与圆环试样压缩实验结果满足一致性,进而得到材料单轴弹塑性本构关系参数。研究表明,对不同厚度的304不锈钢圆环,应用T-F方法获得的材料本构关系与单轴拉伸试验结果吻合较好。基于小尺寸材料的T-F方法在获取小尺寸构件的力学性能方面有良好的工程应用前景。
To obtain the uniaxial elasto-plastic constitutive relationships of materials, a T-F method which combined monotonic compression test on small annulus specimens with iteration of finite element simulation was presented. Using this method, the simulating deformation of annulus specimen agrees well with the experimental results. The results show that the constitutive relationships of materials given by T-F method are consistent with the uniaxial tensile test results. In addition, T-F method for the constitutive relationship of small size annulus specimens has nice prospects in engineering application.
出处
《机械强度》
CAS
CSCD
北大核心
2014年第2期187-192,共6页
Journal of Mechanical Strength
基金
国家自然科学基金项目(11072205和11202174)资助~~
关键词
小尺寸试样
T-F方法
圆环试样
弹性模量
材料本构关系
Small size specimens
T-F method
Annulus specimen
Elastic modulus
Material constitutive relationship
