文献类型：期刊文献

英文题名：Uncertainties in and recommendations to small punch tensile and creep tests for ductile materials

作者：Sun, Wei[2];Li, Ming[1,2];Wen, Zhi-Xun[1];Zhou, Guo-Yan[3];Yue, Zhu-Feng[1];Tu, Shan- Tung[3]

机构：[1]Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China;[2]Univ Nottingham, Fac Engn, Nottingham NG7 2RD, England;[3]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：289

外文期刊名：ENGINEERING FRACTURE MECHANICS

收录：;EI(收录号：20232814381548);WOS:【SCI-EXPANDED(收录号:WOS:001041055400001)】；

基金：This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) UK. Wei Sun would like to acknowledge EPSRC for the financial support [Grant Numbers: EP/N509991/1, EP/K021095/1 and EP/N509942/1] . Guo-Yan Zhou and Shan-Tung Tu would like to acknowledge the National Natural Science Foundation of China (No. 52130511) and the Higher Education Discipline Innovation Project (111 Project) (No. B13020) . Zhixun Wen and Zhufeng Yue would like to acknowledge the National Natural Science Foundation of China (Nos. 51875461, 51875462) .

语种：英文

外文关键词：Deformation mechanisms; Uncertainties; Applicability; Recommendations

摘要：The objective of this paper is to clarify the complex nature which involves the interaction of several non-linear deformation mechanisms experienced in small punch tensile and small punch creep tests, and as a consequence, the associated difficulties in data interpretation. The paper starts with a highlight of some specific features experienced during small punch deformation, e.g., large deformation, high local plasticity, contact, the effect of initial plasticity, possible early cracking etc. and the consequences of them in data interpretation. Although several test standards have been available, uncertainties in data interpretation still exist and a universally accepted conversion method has not been available. On this basis, for the first time, critical comments on the uncertainties and applicability of the test methods in determining the tensile and creep properties and in high-temperature structural integrity assessment are addressed. Finally, rec-ommendations on future developments are provided.