摘要
通过测量钢板矫顽力来实现对钢板所受应力的检测,分析了基于矫顽力的应力检测机理,研究了矫顽力检测原理,利用矫顽力检测系统在弹性形变范围内对不同应力下Q235、X70及X80型号钢板试件的矫顽力进行检测,采用最小二乘法对检测数据进行曲线拟合。结果表明,钢板的矫顽力与其所受应力呈线性变化,与理论分析结果一致。
The stress of the steel plate was detected by measuring the coercivity of the steel plate,the stress detection mechanism based on coercivity was analyzed,and the coercivity detection principle was studied.The coercivity of the specimens of Q235,X70 and X80 steel plates under different stresses was detected by the coercivity detection system in the range of elastic deformation,and the data were curve-fitted by the least squares method.The results show that the coercivity of the steel plate changes linearly with its stress which is consistent with the theoretical analysis of the results.
作者
杨理践
孙宏亮
高松巍
刘斌
何璐瑶
YANG Lijian, SUN Hongliang, GAO Songwei, LIU Bin, HE Luyao(School of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, Chin)
出处
《无损检测》
2018年第3期5-9,共5页
Nondestructive Testing
基金
国家自然科学基金资助项目(61571308)
科技部国家重大仪表专项基金资助项目(2012YQ090175)
辽宁省教育厅资助项目(L2015388)
关键词
矫顽力
铁磁性材料
应力
磁化过程
最小二乘法
coercivity
ferromagnetic material
stress
magnetization process
least squares method
