文献类型：期刊文献

英文题名：Improved Approaches for Small Punch Test to Estimate the Yield and Ultimate Tensile Strength of Metallic Materials

作者：Zhong, Jiru[1]; Yang, Mingtao[1]; He, Xinfu[2]; Guan, Kaishu[1]; Yu, Bintao[2]; He, Zhuangzhuang[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] China Institute of Atomic Energy, Beijing, 102413, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240252088)

语种：英文

外文关键词：Nuclear industry - Strength of materials - Tensile strength

摘要：The small punch test (SPT) has been used extensively in nuclear industries to estimate mechanical properties changes of metals due to irradiation. This paper aims to propose novel approaches for SPT to estimate the yield and ultimate tensile strength of metals. The relationship between the SPT force and the yield and ultimate tensile strength of materials was studied by using finite element simulation data, and then three approaches were developed to determine tensile properties of materials by means of SPT. Force method and Slop method were developed to derive the ultimate tensile strength of materials from SPT curves, and Area method was proposed to determine the yield and ultimate tensile strength of metals. The accuracy of these approaches were verified by two candidate structural material for fusion reactors (CLF-1 and ODS) and other 10 structural material. These approaches are entirely new for SPT to estimate the yield and ultimate tensile strength of materials and can extend the application of SPT in low ductility metals. ? 2024, The Authors. All rights reserved.