High Strain Rate Ductility of the Selected Metals for Shaped Charge Liners

Abstract

An experimental study on various types of metals with the use of an electromagnetic expanding ring technique is presented in this paper. Three metals with differing physical–mechanical properties, i.e., OFE (oxygen-free electronic) copper, aluminum alloy AW 2017A, and Armco iron were considered. This study aimed to select a material with a desirable property for the performance of a shaped charged jet. The obtained results show that the OFE copper with the relatively smallest grain size reveals the highest ductility under electromagnetic expanding ring loading conditions. Armco iron rings also showed relatively good ductility under dynamic loading. These observations seem to suggest the possibility of applying the abovementioned metals in the manufacturing of shaped charge liners.

Keywords

• shaped charge liner materials
• high strain rate ductility
• electromagnetic expanding ring test