MTS软件中J积分测试存在的几个问题及建议
Issues and Suggestions on J-Integral Testing in MTS Software
摘 要
MTS软件以其在断裂疲劳方面的准确方便著称,但在Ｊ积分测试上却存在着一些难以直接获得有效数据的问题.该文列举了MTS软件在处理存在裂纹扩展“负增长”、分叉和止裂等现象的阻力曲线时测试结果不准确的现象,并讨论了不同标准中钝化线斜率定义不同导致得到的断裂韧度指标无法比较的问题.最后针对MTS软件J积分测试中存在的问题给出了相应的建议和解决方法.
J积分
裂纹扩展“负增长”
分叉
止裂
MTS software
J-integral
negative crack extension
crack branching
crack arresting
Abstract
The MTS software is widely used in the field of fracture and fatigue testing.However,there are still some issues during the data processing for getting the effective J-R curves.Some abnormal phenomena causing the inaccurate testing results such as negative crack extension,crack branching and crack arresting were pointed out,and comparison of fracture toughness parameters obtaining from different blunting line slope defined in different standards was discussed.In the end,some suggestions were given to solve the problems in J-integral test with MTS software.
中图分类号 O346.1 TG115.5 DOI 10.11973/lhjy-wl201508002
所属栏目 专题报道(疲劳试验和断裂试验)
基金项目
收稿日期 2014/10/14
修改稿日期
网络出版日期
作者单位点击查看
备注刘冬(1985-),男,工程师.
引用该论文: LIU Dong,LI Rong-feng,YU Li,XUE Huan,DU Li-ying. Issues and Suggestions on J-Integral Testing in MTS Software[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2015, 51(8): 535～538
刘冬,李荣锋,余立,薛欢,杜丽影. MTS软件中J积分测试存在的几个问题及建议[J]. 理化检验－物理分册, 2015, 51(8): 535～538
被引情况:
【1】李春艳,陈伟,汪纯慧,高路斯,邹龙江, "亚温淬火45钢的断裂韧度试验",理化检验－物理分册 52, 759-762(2016)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】方健.落锤撕裂试验的发展及其在评价材料韧断止裂性能中的应用[J].理化检验-物理分册,2015,51(6):381-387,393.
【2】GB/T 21143-2007金属材料 准静态断裂韧度统一试验方法[S].
【3】BS 7448-1:1991Fracture mechanics toughness tests-Part 1:Method for determination of KIC,critical CTOD and critical J values of metallic materials[S].
【4】ISO 12135:2002Metallic materials-Unified method of test for the determination of quasistatic fracture toughness[S].
【5】ASTM E1820-2013Standard test method for measurement of fracture toughness[S].
【6】余圣甫,吴伟,李志远,等.单试样JR阻力曲线测试技术及其应用[J].机械强度,2002,24(2):270-272.
【7】王俊,刘瑞堂,杨卓青,等.对J积分测试方法中几个问题的讨论[J].机械强度,2004,26(6):696-700.
【2】GB/T 21143-2007金属材料 准静态断裂韧度统一试验方法[S].
【3】BS 7448-1:1991Fracture mechanics toughness tests-Part 1:Method for determination of KIC,critical CTOD and critical J values of metallic materials[S].
【4】ISO 12135:2002Metallic materials-Unified method of test for the determination of quasistatic fracture toughness[S].
【5】ASTM E1820-2013Standard test method for measurement of fracture toughness[S].
【6】余圣甫,吴伟,李志远,等.单试样JR阻力曲线测试技术及其应用[J].机械强度,2002,24(2):270-272.
【7】王俊,刘瑞堂,杨卓青,等.对J积分测试方法中几个问题的讨论[J].机械强度,2004,26(6):696-700.
相关信息
