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Proceedings Paper

Application of ultra-high speed photography in identification of the dynamic tensile response of quasi-brittle materials
Author(s): B. Lukić; D. Saletti; P. Forquin
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Paper Abstract

This paper investigates the application of CMOS-based ultra-high speed camera in characterising materials under dynamic tensile loading. A single Hopkinson bar test is used to induce an axial stress wave in the sample and a grid pattern is filmed during the test to obtain time-resolved full-field kinematic measurements. Then the acceleration fields are used to reconstruct the stress information and identify material response. Quasi-brittle materials (e.g. rocks and concrete) present a particular experimental challenge due to small deformation and low stress level at failure. The Shimadzu HPV-X2 acquisition system has been applied for such purpose and its performance was investigated by first performing a spalling test on an aluminium benchmark sample and then applied to testing ordinary concrete.

Paper Details

Date Published: 28 January 2019
PDF: 6 pages
Proc. SPIE 11051, 32nd International Congress on High-Speed Imaging and Photonics, 1105105 (28 January 2019); doi: 10.1117/12.2523425
Show Author Affiliations
B. Lukić, 3SR Lab., Univ. Grenoble Alpes, Grenoble INP, CNRS (France)
D. Saletti, 3SR Lab., Univ. Grenoble Alpes, Grenoble INP, CNRS (France)
P. Forquin, 3SR Lab., Univ. Grenoble Alpes, Grenoble INP, CNRS (France)


Published in SPIE Proceedings Vol. 11051:
32nd International Congress on High-Speed Imaging and Photonics
Michel Versluis; Eleanor Stride, Editor(s)

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