理化检验：物理分册2012，Vol.48Issue(1)：47-51,54,6.
不同控制模式下拉伸试验速率的测试及方法比较
Testing and Method Comparison of Tensile Testing Rate in Different Control Modes
吕丹 1苏洪英 1杨承波 1孙绍广 1王超逸 1陈洪凯1
作者信息
摘要
Abstract
Based on four kinds of control method of tensile testing rate including method A, method B, annex F and position control method in GB/T 228. 1-2010, different control methods were applied to do tensile tests by two groups of thin sheet with Z100 testing machine, and four kinds of method were analyzed and compared. The results showed that the effects on mechanical properties were not obvious to all most of ferrous metal by four kinds of method, only may be difference to strain rate sensitive metal; when method A was applied, although average strain rate was constant, actual strain rate would exceed error limits, so deviated from method A; in order to avoided testing out of control, it was suggested that use equal rate control method in Rp ,ReH range and in yield range when method B was applied; when annex F was applied, parameter m in Rp ,ReH range and parameter E in elastic range shouldn＇t be equal, and Vc was too.关键词
拉伸试验速率/力学性能/拉伸速率控制模式Key words
tensile testing rate/mechanical property/control mode of tensile tesing rate分类
矿业与冶金引用本文复制引用
吕丹,苏洪英,杨承波,孙绍广,王超逸,陈洪凯..不同控制模式下拉伸试验速率的测试及方法比较[J].理化检验：物理分册,2012,48(1):47-51,54,6.
