铁磁构件应力集中的有限元分析和磁记忆检测  

Finite Element Analysis and Magnetic Memory Testing of Ferromagnetism Items

作　　者：宋凯[1] 唐继红[1] 钟万里 刘伟成 任吉林[1] 

机构地区：[1]南昌航空工业学院,南昌330034 [2]广东省电力试验研究院,广州510600 [3]江西省锅炉压力容器检验所,南昌330029

出　　处：《材料工程》2004年第4期40-42,48,共4页Journal of Materials Engineering

基　　金：航空科学基金资助课题(03G56001);广东省科委工业攻关项目(03005);国家质监总局青年科技基金(Q01-10)

摘　　要：应用ANSYS软件对平板中心裂纹构件的应力分布进行有限元分析,不仅得出了符合积分理论解的精度较高的 分析结果,并且通过对加载构件表面漏磁场的测量,验证了应力集中与磁记忆效应之间的规律,进一步探讨了磁记忆 检测在铁磁构件损伤预诊断中应用的可行性。Stress distribution of flat plate, which has a crack in center, was analyzed in terms of finite element method by ANSYS software. The results agreed with theoretical calculation of integration, and some regulations between stress concentration and magnetic memory effect are proved through measuring magnetic leakage field of flat plate. The applicability of magnetic memory testing in pre-diagnosis of ferromagnetism items was discussed.

关 键 词：磁记忆检测 有限元分析 应力集中 铁磁构件 磁记忆效应 机械金属构件 应力分布 

分 类 号：TG115.5[金属学及工艺—物理冶金] TM27[金属学及工艺—金属学]