Testing and Analysis of Tangential Component Signals of Metal Magnetic Memory
摘 要
针对金属磁记忆切向信号检测方向难以确定的问题,提出同时检测切向平面上相互垂直的两个切向分量,采用矢量合成法进行合成,进而得到金属磁记忆最大切向分量的方法,并用ANSYS仿真对该分量的有效性进行验证。通过铁磁性金属构件拉伸试验对磁记忆切向分量信号与应力集中部位和应力集中程度的关系进行研究,并对磁记忆切向分量信号的K曲线进行分析。结果表明,采用矢量合成法合成的金属磁记忆切向分量信号可以作为金属磁记忆最大切向分量,能直观和准确地反映应力集中部位和应力集中程度。
Abstract
The method of resultant vector was adopted to extract tangential component signals of metal magnetic memory due to the problem that the tangential component signals of metal magnetic memory is very hard to be extracted, and its validity was verified by the use of ANSYS simulation. The relationship between tangential component signals of magnetic memory with stress concentration position and stress concentration degrees was investigated under static tension conditions testing, and the K curve of tangential component signals of magnetic memory was analyzed. The result shows that the tangential component signals of metal magnetic memory can be effectively extracted by the method of resultant vector, and the stress concentration positions and stress concentration degrees can be reflected intuitively and accurately by tangential component signals of metal magnetic memory.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 国家自然科学基金资助项目(51065022);无损检测技术教育部重点实验室开放基金资助项目(ZD200929006)
收稿日期 2011/9/29
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备注任吉林(1949-),男,教授,主要从事电磁无损检测等方面的研究。
引用该论文: REN Ji-Lin,ZHOU Pei,CHEN Xi,LUO Sheng-Cai,LIU Chang-Kui. Testing and Analysis of Tangential Component Signals of Metal Magnetic Memory[J]. Nondestructive Testing, 2011, 33(12): 1~5
任吉林,周培,陈曦,罗声彩,刘昌奎. 磁记忆切向分量信号的检测试验[J]. 无损检测, 2011, 33(12): 1~5
被引情况:
【1】徐金龙,徐凌云,林海,冯浚汉,吕善胜,华斌,田琼, "金属磁记忆诊断在石油套管检测中的应用",无损检测 36, 38-40(2014)
【2】徐金龙,曹标,洪武兴,吕善胜,冯浚汉,华彬,杨树洁, "国内外石油套管无损检测标准体系",无损检测 36, 72-77(2014)
【3】方发胜,周培,张利明,饶琪,任吉林, "疲劳试验下应力集中与磁信号的关系",无损检测 36, 30-35(2014)
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参考文献
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【11】张卫民,刘红光,孙海涛.中低碳钢静拉伸时磁记忆效应的试验研究[J].北京理工大学学报,2004,24(7):571-574.
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【2】任吉林,林俊明.电磁无损检测[M].北京:科学出版社,2008:377-379.
【3】Doubov A A. Diagnostics of metal items and equipment by means of metal magnetic memory proc of CHSNDT[C]. 7th Conference on NDT and International Research Symposium. Shantou, China,1999:181-187.
【4】Doubov A A. The express technique of welded joints examination with use of metal magnetic memory[J]. NDT & E International,2000,33(6):351-362.
【5】Doubov A A. Express method of quality control of a spot resistance welding with usage of metal magnetic memory[J]. Welding in the World,2002(46):317-320.
【6】张西勇,张永祥,明廷涛.X70管线钢金属磁记忆信号特征研究[J].机械设计与制造,2010(7):60-61.
【7】朱有利,李礼,王侃,等.铁磁性材料表面和次表面缺陷在弱磁场中漏磁信号的有限元分析及磁记忆检测[A].2006年全国无损检测学会电磁(涡流)专业委员会年会论文集.宜昌:电磁(涡流)专业委员会,2006.
【8】仲维畅.金属磁记忆法诊断的理论基础[J].无损检测,2001,23(10):424-426.
【9】黄松岭,李路明,等.用金属磁记忆方法检测应力分布[J].无损检测,2002,24(5):212-214.
【10】任吉林,王东升,宋凯.应力状态对磁记忆信号的影响[J].航空学报,2007,28(3):724-728.
【11】张卫民,刘红光,孙海涛.中低碳钢静拉伸时磁记忆效应的试验研究[J].北京理工大学学报,2004,24(7):571-574.
【12】董丽虹,徐滨士,董世运,等.金属磁记忆技术检测低碳钢静载拉伸破坏的试验研究[J].材料工程,2006(3):40-43.
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