A new test for the mechanical characterisation of composite pultruded rods under compression
File(s)
Published version
Author(s)
Quino Quispe, Gustavo
Zhao, Chuo
Zhang, Bohao
Robinson, Paul
Trask, Richard S
Type
Conference Paper
Abstract
Traditional direct compression tests on pultruded rods typically generate stress concentrations around the gripping regions, preventing accurate measurement of the true compressive strength. This paper introduces the ‘cradle test’, a novel experimental methodology designed to better characterise the compression performance of such materials. The setup consists of a polymeric beam that ‘cradles’ a pultruded rod, which is adhesively bonded to the beam. The method produced consistent failure within the gauge length and clear evidence of compression-dominated failure modes. A complementary
technique based on full-field digital image correlation (DIC) strain measurements was also developed to obtain the complete strain vs. stress response. The approach is extendable to the characterisation of other materials.
technique based on full-field digital image correlation (DIC) strain measurements was also developed to obtain the complete strain vs. stress response. The approach is extendable to the characterisation of other materials.
Date Issued
2025-08-04
Date Acceptance
2025-05-01
Citation
ICCM 24 Proceedings, 2025, pp.1-6
Publisher
The University of Delaware
Start Page
1
End Page
6
Journal / Book Title
ICCM 24 Proceedings
Copyright Statement
© 2025 The Author(s). This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-sa/4.0/).
License URL
Source
24th International Conference on Composite Materials
Publication Status
Published
Start Date
2025-08-04
Finish Date
2025-08-08
Coverage Spatial
Baltimore, MD, USA