2017 Joint International Conference on Materials Science and Engineering Application (ICMSEA 2017) and International Conference on Mechanics, Civil Engineering and Building Materials (MCEBM 2017) ISBN: 978-1-60595-448-6 Experimental and Numerical Study of Brass Specimens Subjected to High Rates of Loading During Perforation Tests and Heated Using High-Performance Thermal Chamber Maciej KLÓSAK 1,2,a,* , Alexis RUSINEK 3,2,b , Amine BENDARMA 4,1,c , Tomasz JANKOWIAK 4,d and Tomasz LODYGOWSKI 4,e 1 Universiapolis, Ecole Polytechnique d’Agadir, Bab Al Madina, Qr Tilila, Agadir, Morocco 2 The International University of Logistics and Transport in Wroclaw, Soltysowicka 19, Wroclaw, Poland 3 University of Lorraine, Laboratory of Mechanics, Biomechanics, Polymers and Structures (LaBPS), 1 route d'Ars Laquenexy, Metz, France 4 Poznan University of Technology, Institute of Structural Engineering, Piotrowo 5, 60-965 Poznan, Poland a klosak@e-polytechnique.ma, b alexis.rusinek@univ-lorraine.fr, c amine.bendarma@doctorate.put.poznan.pl, d tomasz.jankowiak@put.poznan.pl, e tomasz.lodygowski@put.poznan.pl *Corresponding author Keywords: Brass alloy mechanical properties, High rates of loading, Gas gun experimental technique, High-performance thermal chamber. Abstract. The paper describes the mechanical behavior of brass alloy under impact loading. The work is focused on perforation tests carried out at wide range of specimen temperatures. This has been obtained due to application of the specially designed thermal chamber to heat specimens before impact. Based on this experimental series, the ballistic properties of the material impacted by conical nose shape projectile are studied. The experimental investigations have been extended by numerical simulations using a general purpose software Abaqus/Explicit. The phenomenological constitutive relation has been checked coupled with a failure criterion. Finally, good correlation is reached between numerical and experimental results. Introduction There has been few data available for experimental results in which specimens are subjected to impact loading at elevated temperatures. This mix of the dynamic gas gun technique with specimen heating is not widely spread. A thermal chamber used for the analysis allows to heat metallic thin plate specimens up to 270 ˚C. The brass alloy has been selected for analysis because it is not strain rate sensitive and permits to focus the analysis of the thermal behavior of the metal. The experimental results obtained have been confronted with available literature data and then extended through FEM analysis. Perforation Tests Experimental, analytical and numerical investigations have been carried out to analyze in details the perforation process [1]. A wide range of impact velocities from 40 to 120 m/s has been used during the tests. The conical projectile with an angle of 72° has 13 mm in diameter and the plate is 1.0 mm thick. The specimen and projectile are schematised is Fig. 1.