https://doi.org/10.1051/epjconf/201818301041
Modelling of the behaviour of metal foams under shock compression
1
ENSTA Bretagne, FRE CNRS 3744, IRDL,
2 rue François Verny,
F-29806
Brest cedex 9,
France
2
MBDA France,
1 avenue Réaumur,
F-93350
Le Plessis-Robinson,
France
* Corresponding author: nicolas.jacques@ensta-bretagne.fr
Published online: 7 September 2018
A theoretical modelling is proposed to describe the shock response of foam materials. This model is based on micromechanical and energetic arguments, and takes into account the contribution of microscale inertia. Within this framework, an analytical expression of the Hugoniot stress-strain curve is proposed for elastic-plastic cellular materials. The predictions derived from the proposed model are in excellent agreement with experimental data for open-cell aluminium foams. The case of viscoplastic foams is also considered.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
