Application of small punch creep test data for conventional creep

摘要：

The focus of this work is to investigate the relationship between small punch (SP) creep test and conventional creep test using experimental data and finite element modeling (FEM).P92 steel was used for the experiments.Results of SP creep test under a constant force were compared with the conventional creep test data at temperatures of 600℃.Time to fracture and the displacement measured during the SP creep tests are related in a similar manner to the corresponding conventional creep tests.Matching experimental data with FEM results yields a simple relationship between the applied force in the SP creep and the equivalent stress in the conventional creep.Likewise,it also establishes the relationship between the displacement and the strain.Consequently,one can derive equivalent creep constant and stress exponent of uniaxial creep from the SP creep data with the aid of FEM analysis.

关键词： Small punch Conventional creep Creep rate Displacement rate Finite element method von Mises

作者: Jiwoo Im Bumjoon Kim Moon K.Kim Namhyuck Cho Byeongsoo Lim

作者单位: School of Mechanical Engineering,Sungkyunkwan University,300,Cheoncheon-dong,Jangan-gu,Suwon,Cyeonggi-do 440- 746,Korea

会议类型: 国际会议

会议名称: 国际断裂力学2009年会

会议地点: 成都

会议语种:英文

页码: 219-224

在线出版日期: 2009-10-16（万方平台首次上网日期，不代表论文的发表时间）