文献类型：期刊文献

中文题名：小冲孔试验法的起源、发展和应用

英文题名：ORIGINATION, DEVELOPMENT AND APPLICATION OF SMALL PUNCH TEST METHOD

作者：艾芒[1];杨镇[1];王志文[1]

机构：[1]华东理工大学化工机械研究所,上海200237

年份：2000

卷号：22

期号：4

起止页码：279

中文期刊名：机械强度

外文期刊名：Journal of Mechanical Strength

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：力学性能;微试样;小冲孔试验法;无损取样

外文关键词：small punch (SP), mechanical property, miniature specimen

摘要：起源于 8 0年代的小冲孔试验法具有无损取样的综合优势 ,能够利用尺寸极其微小的试样对服役材料进行失效分析和寿命评估。利用经验和分析的数据处理方法 ,它已成功地测试出多种材料的强度、塑性或延性指标 ,韧脆性转变温度DBTT(或FATT) ,断裂韧度KⅠC或JⅠC等 ,并具有潜在的评定其他力学性能 (包括蠕变性能、持久强度等 )的能力。由于小冲孔试样应力状态的高度不均匀 ,目前的工作集中在如何通过经验数据的积累和使用系统分析方法来提高与传统试样相关的准确性上。
Small punch (SP) test, a new technique for miniature sample, can be used to assess the damage and evaluate the residual life of materials in service. It has been applied to achieve mechanical behavior including yield strength, ultimate strength, ductility, ductile to brittle transition temperature ( DBTT or FATT ), fracture toughness K ⅠC or J ⅠC , etc. from many kinds of materials, and it has potential to measure other mechanical properties such as creep property, endurance strength and so on. Because the stress states and deformation behavior are highly complex and vary over the history of deformation, most of research works are being emphasized on the improvement of the precision on correlating SP result to traditional result by both empirical and analytical data.