The Influence of Material Parameters on Penetrator Embedding Pre-perforated Steel Plate Vertically

摘要

In this paper, the fracture analysis model about the penetrator embedding pre-perforated steel plate vertically is set up. The threshold target impact velocity expression (if the penetrator's fracture failure occurs) is obtained. In addition, the influence of the penetrator's material parameters on the fracture failure, that is, the threshold target impact velocity, are listed and analyzed, such parameters including materials' yield stress, tangent modulus, density and failure strain. The results show that the threshold velocity increases along with the material yield stress, tangent modulus and failure strain, inversely along with the material density. This study would provide strong theoretical and engineering basis for the penetrator design and analysis.