Influence of the Residual Stress on Mechanical Properties of Ductile Materials by Simulating Small Punch Test

摘要：

　　This paper describes an approach to identify the influence of mechanical properties of the materials under the condition of containing residual stress.The numerical method of simulating small punch test (SPT) is used to determine the material response under loading.The simulated material behavior of the specimen is based on the ductile elastoplastic damage theory of Gurson, Tvergaard and Needleman (GTN).The residual stress can be prefabricated on the specimen by loading and unloading.By comparing the original specimen with the specimen contains residual stress, the change of the mechanical properties of the materials can be studied.The results of simulation indicate that the material properties decrease with the increase of the residual stress.

关键词： residual stress mechanical properties small punch test finite elements analysis

作者: Hehui Wang Shaojie Zhang Yaogang Wang Kaishu Guan

作者单位: School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai,200237,China

会议类型: 国际会议

会议名称: 2014 International Symposium on Structural Integrity,ISSI2014(2014国际结构完整性学术会议)

会议地点: 兰州

会议语种:英文

页码: 321-327

在线出版日期: 2014-08-20（万方平台首次上网日期，不代表论文的发表时间）