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Proceedings 2018, 2(8), 405; https://doi.org/10.3390/ICEM18-05274

Dynamic Tensile Testing of Brittle Composites Using a Hydraulic Pulse Machine: Stress-Strain Synchronization and Strain Rate Limits

1
Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Tech Lane Ghent Science Park—Campus A, Technologiepark-Zwijnaarde 903, B-9052 Ghent, Belgium
2
SIM SBO program M3Strength, Technologiepark-Zwijnaarde 935, B-9052 Ghent, Belgium
Presented at the 18th International Conference on Experimental Mechanics, Brussels, Belgium, 1–5 July 2018.
*
Author to whom correspondence should be addressed.
Published: 27 May 2018
PDF [667 KB, uploaded 6 June 2018]

Abstract

The effect of synchronization on the test results is explored by performing dynamic tensile tests on several continuous-fibre composite laminates. The results show that synchronization is key, because a delay of a single microsecond significantly affects the test outcome at high strain rates. Additionally, several upper limits on the maximum achievable strain rate of the experimental set-up are determined with the aid of a finite element model. These limits depend on the characteristics of the used equipment, the properties of the tested material and the chosen specimen dimensions.
Keywords: high strain rate; tensile properties; polymer composites; carbon/epoxy; glass/polyamide-6; data reduction high strain rate; tensile properties; polymer composites; carbon/epoxy; glass/polyamide-6; data reduction
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Spronk, S.W.F.; Verboven, E.; Gilabert, F.A.; Sevenois, R.D.B.; Garoz, D.; Kersemans, M.; Paepegem, W.V. Dynamic Tensile Testing of Brittle Composites Using a Hydraulic Pulse Machine: Stress-Strain Synchronization and Strain Rate Limits. Proceedings 2018, 2, 405.

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