Image-Based Inertial Impact Tests on an Aluminum Alloy
This paper presents the development of a novel inertial test for the identification of non-linear parameters for elasto-plastic constitutive models at high strain rates. After briefly presenting the principle of the approach using the virtual fields method, the experimental implementation is detailed. Using the virtual fields method, the yield stress and hardening modulus of aluminum 6082-T6 were identified.
This material is based on research sponsored by the Air Force Research Laboratory, under agreement number FA8655-13-1-3041. The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Research Laboratory or the U.S. Government.
Ms. Sarah Dreuilhe acknowledges the support of EPSRC for partial funding through a Doctoral Training Grant. Dr. Frances Davis and Prof. Fabrice Pierron acknowledge support from EPSRC through grant EP/L026910/1. Prof. Fabrice Pierron also expresses gratitude to the Wolfson Foundation for support through a Royal Society Wolfson Research Merit Award.