Research on the static strength performance of adhesive single lap joints subjected to extreme temperature environment for automotive industry
Research on the static strength performance of adhesive single lap joints subjected to extreme temperature environment for automotive industry
复制标题
汽车行业极端温度环境下胶粘单搭接接头静强度性能研究
DOI：
10.1016/j.ijadhadh.2012.10.010
复制
发表时间：
2013-03-01
影响因子：
3.4
通讯作者：
Shao, Q.
中科院分区：
文献类型：
--
作者：
Hu, P.;Han, X.;Shao, Q.
近年来，粘接技术在汽车工业中得到了广泛的研究和应用，取得了令人满意的接头力学性能和轻量化效果。本研究通过粘接接头准静态剪切强度试验，研究了不同温度下粘接接头的静态力学性能。利用MATLAB编程的响应面法，分析了暴露温度和胶粘剂力学属性对接头静强度的影响。随后对断口表面进行了目视检查和扫描电镜检查，以解释破坏机制。试验结果表明，长期温度暴露导致接头强度和破坏位移下降。通过响应面曲线发现，与高温暴露相比，低温对环境的破坏更大、更快。通过对比不同环境处理下的粘接接头，在重叠区发现了不同类型的断口。(C) 2012 Elsevier Ltd.版权所有。
Adhesive bonding technique is widely studied and adopted in automotive industry in recent years, which leads to satisfactory joint mechanical properties and lightweight effects. In this study, the static mechanical performance of adhesively bonded joints after different temperature exposures was investigated through joint quasi-static shear-strength test. A response surface method using MATLAB programming was utilised to analyse the influences of exposure temperature and adhesive mechanical attributes on joint static strength. Visual inspection and scanning electron microscopy were later performed on the fracture surfaces to explain the failure mechanisms. Test results showed that long-term temperature exposure caused degradation in joint strength and failure displacement. It was found through response surface curve that comparing to higher temperature exposure, lower temperature causes greater and faster environmental degradation. Different types of fracture surfaces in the overlap zone were also detected through comparing adhesive joints under different environmental treatments. (C) 2012 Elsevier Ltd. All rights reserved.