https://doi.org/10.1051/epjconf/201818301037
Calibration of Johnson’s damage model by a Bayesian approach
CEA, DAM, DIF,
F-91297
Arpajon Cedex,
France
* e-mail: guillaume.perrin2@cea.fr
** e-mail: laurianne.pillon@cea.fr
Published online: 7 September 2018
A calibration of the Johnson’s damage model is proposed by using a Bayesian approach. A set of 3 parameters has to be adjusted. For this purpose, free surface velocities of 7 plate impact experiments leading to spallation in targets of tantalum are used. The resulting distributions of probability indicate several potential values for each parameters. Each of them used in an hydrocode leads to good agreement with reference free surface velocities.
© 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.
