Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7889750 | Composites Part A: Applied Science and Manufacturing | 2018 | 11 Pages |
Abstract
In this work, the effect of temperature exposure on the strength of resistance welded joints is analysed. Glass fibre reinforced polyphenylene sulphide (GF/PPS) adherends were joined using the resistance welding technique, using a stainless steel mesh as the heating element. Single lap shear tests were performed at temperatures ranging between â50â¯Â°C and 150â¯Â°C to evaluate the strength of the welded joints. The results showed that the lap shear strength decreased with increasing temperature, except for the region between 50â¯Â°C and 90â¯Â°C where it remained constant. Fractography analysis revealed that the main failure mechanism was glass fibre/matrix debonding and the connection between the mesh and the matrix was not the weakest link at the interface of the joint at any temperatures under study. The fibre/matrix interfacial strength and the stress distribution at the joint overlap were identified as the main factors influencing the behaviour of lap shear strength with temperature.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
N. Koutras, I. Fernandez Villegas, R. Benedictus,