Analysis of void formation in thermoplastic composites during resistance welding

Journal article (2016)

Authors

H. Shi Structural Integrity & Composites - Aerospace Engineering
I.F. Villegas Structural Integrity & Composites - Aerospace Engineering
H.E.N. Bersee Structural Integrity & Composites - Aerospace Engineering
Research Group
Structural Integrity & Composites (Aerospace Engineering) (TU Delft)
Copyright: © 2016 H. Shi, I.F. Villegas, H.E.N. Bersee
DOI: https://doi.org/10.1177/0892705716662514
More Info
expand_more

Published Date

2016

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Structural Integrity & Composites

Abstract

The process-induced voids during resistance welding of glass fabric-reinforced polyetherimide was investigated. The mechanisms of void formation in adherends, in particular, the residual volatile-induced voids and the fibre de-compaction-induced voids, were analysed. Due to the non-uniform temperature and stress distributions in the joints during welding, a non-uniform void distribution was observed in the joints with more voids generated in the middle of the joints than at the edges. Welding temperature and pressure were shown to have a large influence on void formation. Increasing of welding pressure was shown to effectively reduce the voids, while the residual moisture-induced voids were found more difficult to be eliminated than the fibre de-compaction-induced voids

Files

Accepted_Manuscript_Journal_of... (.pdf)
(.pdf | 1.88 Mb)
- Embargo expired in 01-01-2018