STUDY ON THE MECHANICAL PERFORMANCE AND FAILURE MODE OF CLINCHING JOINT

ZHOU LuYao; LV Jie; LU ShanBin

doi:10.16579/j.issn.1001.9669.2016.01.011

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STUDY ON THE MECHANICAL PERFORMANCE AND FAILURE MODE OF CLINCHING JOINT

更新时间：2022-09-22

- STUDY ON THE MECHANICAL PERFORMANCE AND FAILURE MODE OF CLINCHING JOINT
- Journal of Mechanical Strength Vol. 38, Issue 1, Pages: 54-59(2016)
- 作者机构：
  
  1. 吉林大学汽车工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2016.01.011
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ZHOU LuYao, LV Jie, LU ShanBin. STUDY ON THE MECHANICAL PERFORMANCE AND FAILURE MODE OF CLINCHING JOINT. [J]. 38(1):54-59(2016)
DOI：

ZHOU LuYao, LV Jie, LU ShanBin. STUDY ON THE MECHANICAL PERFORMANCE AND FAILURE MODE OF CLINCHING JOINT. [J]. 38(1):54-59(2016) DOI： 10.16579/j.issn.1001.9669.2016.01.011.

摘要

通过单个无铆钉铆接接头小试件在十字拉伸、搭接剪切和对接剥离工况下的准静态试验和动态试验以及不同加载角度下的准静态试验(0°、30°、45°、60°和90°),对无铆钉铆接接头的力学行为和失效特征进行了研究。试验结果表明,当剪切方向分力在合力中所占比例越大时,接头的强度越大,但对接头的延展性没有规律性影响。无铆钉铆接接头小试件在十字拉伸试验中发生了脱扣失效,在搭接剪切试验中发生了撕裂失效,在对接剥离工况下两种失效都有可能发生,有时两种失效会同时发生。同时在三种典型工况下无铆钉铆接接头呈现一定的应变率效应,动态试验的峰值载荷均大于准静态试验。

Abstract

The mechanics behavior and failure characteristics of clinching joint specimens were investigated through the quasi-static tests and dynamic tests of single clinching joints under cross tension,lap shear and couch peel conditions,and also through the quasi-static tests with different loading angles（ 0 °,30 °,45 °,60 ° and 90 °）. The test results show that,the joint strength becomes greater while shear / tensile ratio increases,but the extensibility of clinching joints exhibits no obvious rule.Button separation happened in cross-tension tests; neck fracture in lap-shear tests; both two failure modes happened in couchpeel tests either separately or simultaneously. All clinching joints have strain rate effect under three typical conditions,i. e. the peak forces of all dynamic tests were higher than the corresponding ones of quasi-static tests.

关键词

无铆钉铆接力学试验力学性能失效模式

Keywords

Clinching jointMechanical testMechanical performanceFailure mode

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