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Indexed by:期刊论文

Date of Publication:2013-03-01

Journal:INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES

Included Journals:SCIE、EI

Volume:41

Page Number:119-126

ISSN No.:0143-7496

Key Words:Adhesively bonded joints; Static strength; Temperature exposure; Single lap joints; Response surface method

Abstract: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.