Dynamic Tensile Testing of Brittle Composites Using a Hydraulic Pulse Machine: Stress-Strain Synchronization and Strain Rate Limits
Siebe W. F. Spronk,
Erik Verboven,
Francisco A. Gilabert,
Ruben D. B. Sevenois,
David Garoz,
Mathias Kersemans,
Wim Van Paepegem
Affiliations
Siebe W. F. Spronk
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
Erik Verboven
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
Francisco A. Gilabert
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
Ruben D. B. Sevenois
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
David Garoz
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
Mathias Kersemans
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
Wim Van Paepegem
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
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.
