螺栓横向剪力的超声检测  

Ultrasonic testing of transverse shear force in bolt

作　　者：向鹏宇 陈兵[1] 邱菲菲 朱忠尹[1] 苟国庆[1] XIANG Pengyu;CHEN Bing;QIU Feifei;ZHU Zhongyin;GOU Guoqing(School of Materials Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学材料科学与工程学院,成都610031

出　　处：《无损检测》2022年第3期36-39,74,共5页Nondestructive Testing

基　　金：成都市国际合作基金资助项目(2020-GH02-00058-HZ)。

摘　　要：介绍了螺栓轴向应力检测的原理,设计了一种受剪夹具,采用超声检测法研究了在不同扭矩下剪力和时延的线性关系。结果表明,在不同扭矩下,剪力与时延呈线性关系,但斜率不一样,可为超声波法测量螺栓剪力提供依据。The principle of bolt axial stress detection is introduced, a shear fixture is designed, and the linear relationship between shear force and time delay under different torques is studied by ultrasonic detection method. The results show that there is a linear relationship between shear and time delay under different torques, but the slope is different, which can provide a basis for measuring bolt shear stress by ultrasonic method.

关 键 词：超声波时延 剪力 轴向应力 压电晶片 螺栓 

分 类 号：TG115.28[金属学及工艺—物理冶金]