金属薄板塑性应变比测量方法评价
Evaluation of measurement method for plastic strain ratio of metal sheet
摘 要
ISO 10113：2020修订后的内容较修订前有较大调整，增加了半自动测量方法，并更加清晰地定义了手动测量、半自动测量和全自动测量3种方法。采用全自动测量方法验证了使用不同类型横向引伸计对不同试样塑性应变比的影响，结果表明：对不同类型的金属材料，利用多线横向测量方法可提高测量结果的重复性。
横向引伸计
多线测量
塑性应变比
metal sheet
transverse extensometer
multipoint measurement
plastic strain ratio
Abstract
After the revision of ISO 10113:2020, its content had been greatly adjusted compared with that before the revision, the semi-automatic measurement method had been added, and the manual measurement, semi-automatic measurement and automatic measurement were more clearly defined. The influence of different types of transverse extensometers on the plastic strain ratio of different specimens was verified by automatic measurement method. The results show that the repeatability of measurement results could be improved by using multi-point transverse measurement method for different types of metal materials.
中图分类号 TG115.5 DOI 10.11973/lhjy-wl202210010
所属栏目 试验技术与方法
基金项目
收稿日期 2022/1/19
修改稿日期
网络出版日期
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备注乐玮(1980-),男,工程师,主要从事材料力学业务发展工作,1386086@qq.com
引用该论文: LE Wei,NAN Qunzhi,WANG Jianxia. Evaluation of measurement method for plastic strain ratio of metal sheet[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2022, 58(10): 42～45
乐玮,南群智,王建霞. 金属薄板塑性应变比测量方法评价[J]. 理化检验－物理分册, 2022, 58(10): 42～45
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参考文献
【1】凃应宏,李荣锋,周崎.金属薄板的区间r值及其应用[J].理化检验(物理分册),2016,52(1):1-4.
【2】钱匡武,彭开萍,陈文哲.金属动态应变时效现象中的"锯齿屈服"[J].福建工程学院学报,2003,1(1):4-8.
【2】钱匡武,彭开萍,陈文哲.金属动态应变时效现象中的"锯齿屈服"[J].福建工程学院学报,2003,1(1):4-8.
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