18CrNi4A钢力-磁效应的ANSYS模拟  

Simulation of Stress-magnetization Effect on 18CrNi4A Steel by ANSYS

作　　者：任吉林[1] 舒铭航[1] 伍家驹[1] 宋凯[1] 陈曦[1] 陈晨[1] 

机构地区：[1]南昌航空大学无损检测技术教育部重点实验室,南昌330063

出　　处：《材料工程》2009年第11期40-44,共5页Journal of Materials Engineering

基　　金：航空科学基金资助项目(03G56001)

摘　　要：采用大型有限元分析软件ANSYS建立18CrNi4A试样及其周围空气层的有限元模型,对其进行地磁场中拉伸载荷下的力-磁效应有限元模拟,得出试样应力分布图以及试样表面切向和法向漏磁场分布结果;磁场下应力集中对磁记忆信号的影响进行分析;最后,将模拟结果与实际试验结果进行比对,得出分析结果,为磁记忆检测技术的机理和试验的深入研究提供依据。To analysis the stress-magnetization effect on 18CrNi4A steel specimen under the geomagnetic field, the mode of the specimen and the air around it was constructed with the help of ANSYS, famous software of Finite Element Analysis （FEA）. The stress and magnetic flux leakage distribution of the mode was given. The influences of stress concentration under the geomagnetic field on magnetic memory signal were discussed. Lastly, through the contrast analysis between finite element result and experimental phenomena, the summing-up was given, providing the gist for the deep-going study of magnetic memory testing theory and experiment.

关 键 词：有限元法 力-磁效应 磁记忆信号 拉伸载荷 应力集中 

分 类 号：V250.2[一般工业技术—材料科学与工程]