Modeling of Strain-Rate Behavior of a Lead-Antimony Alloy for Bullet Constructions

In recent years, the importance to understand the actual behavior of components subjected to ballistic impacts leads to the use directly military bullet in the research fields. The bullet under analysis in this work is the 7.62x51mm Ball. It is a full metal jacket bullet with the core in lead-antimony alloy and the jacket in brass. This work focused the attention on the mechanical characterization of the core material. In literature there is a great leak of results for this alloy, especially at high strain-rate. In this work, experimental tests varying the strain-rate were performed and the results showed that the lead-antimony alloy presents a great strain-rate sensitivity.