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Conference papers

Energy absorption capability of spruce and beech under axial compression with rigid confinement

Abstract : The uni-axial strain responses of two wood species (Spruce and Beech) have been determined at two strain rates of 0.0015s-1 and 600s-1 under compression in the longitudinal direction. The high strain rate compressions are performed using a Split Hopkinson Pressure Bar device made of Pa.6-6. A multiaxial stress state can be induced by using a rigid confinement device. In this configuration, densification regime can be reached for both strain rates and wood species. Dynamic stress-strain curves, when compared to quasi-static ones, exhibit an increase of compressive strength (166% for spruce and 106% for beech), plateau stress values (22.5% for both species) and also of specific energies (around 18% for spruce and around 14% for beech) with an increasing strain rate and both species present good energy absorption capability (until 75kJ/kg for spruce and 49kJ/kg for beech).
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Conference papers
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Submitted on : Wednesday, November 17, 2021 - 3:06:31 PM
Last modification on : Thursday, November 18, 2021 - 3:56:43 AM

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  • HAL Id : hal-03432953, version 1

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Jérémy Wouts, Daniel Coutellier, Marc Oudjene, Grégory Haugou, Hervé Morvan. Energy absorption capability of spruce and beech under axial compression with rigid confinement. 1st International Conference on Impact Loading of Structures and Materials, May 2016, Turin, Italy. ⟨hal-03432953⟩

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