小冲杆测试材料屈服载荷的有限元分析  

FEM analysis for material yield load with small punch test

作　　者：关凯书[1] 黄弈昶[1] 李璞[1] 

机构地区：[1]华东理工大学承压系统安全科学教育部重点实验室,上海200237

出　　处：《塑性工程学报》2007年第6期152-156,共5页Journal of Plasticity Engineering

摘　　要：文章通过ABAQUS有限元分析软件模拟小冲杆试验过程,重点分析2.25Cr1Mo、16MnR、20#、1.25Cr0.5Mo4种材料的小冲杆屈服载荷。试验结果表明,有限元模拟得到的材料屈服载荷与常规拉伸试验所得出的屈服强度存在显著的线性关系,并具有相当高的相关系数。为最终通过小冲杆试验评价材料的屈服强度提供了一条新的思路。The paper has established a SPT FE model by ABAQUS software to simulate the test process and analysed the SPT yield load of 2.25Cr1Mo, 16MnR, 1.25Cr0.5Mo and 20 #. The results show that a significant linear relationship exists between yield load from FEM data and conventional yield strength from tensile test results. There is also a high correlation coefficient between SPT yield load and the conventional yield strength. The study represents a new method of evaluating material yield strength in small punch test.

关 键 词：小冲杆试验 有限元模拟 屈服载荷 

分 类 号：TB302.5[一般工业技术—材料科学与工程]