J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 385-390
Numerical and experimental study of the impact of small caliber projectiles on ballistic soapN. Ndompetelo1, P. Viot2, G. Dyckmans1 and A. Chabotier1
1 Royal Military Academy, 30 Renaissancelaan, 1000 Brussels, Belgium
2 LAMEFIP, ENSAM de Bordeaux, Esplanade des Arts et Métiers, 33405 Talence Cedex, France
Published online: 26 July 2006
In previous studies [1, 2], an elastoplastic model for soap material has been considered to characterize the soap behavior under impacts of spherical bullets. The characterization and validation of this model were made via the deceleration of a bullet into the soap material. In order to take into account the strain hardening and strain rate effects, an investigation of an elastoviscoplastic model is made. For model characterization purposes, experimental data were obtained from the viscoelastic Hopkinson pressure bar. The model parameters were determined through an optimization process and validation of the model was done by using a series of firing tests from previous experiments where spherical bullets were fired into soap blocks [1, 2].
© EDP Sciences 2006