Effect of temperature and fibre reinforcement on dynamic crush performance of glass-polyamide 6 composite tubes

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

In this study, the dynamic axial crushing response of tubular specimens made of glass-polyamide 6 composite material, with either mat or continuous bidirectional fibre reinforcement is experimentally investigated under three different temperature settings: -40 °C, 23 °C and 80 °C. The assessment and evaluation of the dynamic crush performance are based on the measured global force–displacement response, application of typical crashworthiness criteria and a detailed examination of the existing damage and failure phenomena, which are responsible for energy absorption. At temperatures of 23 °C and -40 °C, all specimens showed a stable progressive crushing process by a pronounced splaying failure. Specimens with mat fibre reinforcement show a more stable and efficient crushing behaviour than specimens with continuous bidirectional fibre reinforcement. This behaviour changes for a temperature of 80 °C where the continuous bidirectional reinforced specimens exhibit a higher crush efficiency, while specimens with mat fibre reinforcement show a very unstable crushing process, leading to local compressive kinking failure and a 22% decrease in crush efficiency.

Details

Original languageEnglish
Article number100610
Number of pages14
JournalComposites : Part C, Open Access
Volume17 (2025)
Early online date2 Jun 2025
Publication statusPublished - Jul 2025
Peer-reviewedYes

External IDs

ORCID /0000-0003-1370-064X/work/186619453
Scopus 105008085774
WOS 001513878000001

Keywords

Keywords

  • Crushing response, Splaying failure, Temperature dependency, Thermoplastic composite