铆接件应力集中的磁记忆检测实验研究  

The Experimental Study of MMM Method for the Stress Concentration Test of Riveting Components

作　　者：王朝霞[1] 张卫民[1] 袁俊杰[1] 

机构地区：[1]北京理工大学机械与车辆工程学院

出　　处：《新技术新工艺》2008年第4期86-87,共2页New Technology & New Process

基　　金：北京市自然科学基金项目(3052014);北京市重点学科资助项目(XK100070424)

摘　　要：研究地磁场作用下铆接件在铆接前后和受拉伸载荷作用下,铆钉孔附近试件表面弱磁信号的变化以及磁记忆效应,对铆接件应力集中状态、局部塑性变形与磁信号之间关系。以及外载荷变化时磁记忆信号的变化情况进行分析,探讨金属磁记忆检测技术用铆接件检测时的规律和方法。The metal magnetic memory (MMM) effect and surface weak magnetic field changes caused by riveting and tension loading process were studied under geomagnetic circumstance around the rivet holes. The magnetic signals changes at the stress concentration (SC) zone and local plastic deformation position were analyzed during the load increasing process. The MMM testing method for riveting components suggested by the experiment results was proposed and discussed.

关 键 词：无损检测 金属磁记忆 铆接 

分 类 号：TH140.7[一般工业技术—材料科学与工程]