Ballistic impact response of steel fiber-metal laminates

Abstract

In this article, the ballistic impact response of square clamped fiber-metal laminates and monolithic plates consisting of different metal alloys is investigated using the ANSYS LS-DYNA explicit nonlinear analysis software. The panels are subjected to central normal high velocity ballistic impact by a cylindrical projectile. Using validated finite element models, the influence of the mechanical properties of the constituent metal alloy on the ballistic resistance of the fiber-metal laminates and the monolithic plates is studied. Six steel alloys are examined, namely 304 stainless steel, 1010, 1080, 4340, A36 steel and DP 590 dual phase steel. A comparison with the response of GLARE plates is also implemented. It is found that the ballistic limits of the panels can be substantially affected by the constituent alloy. The stainless steel based panels offer the highest ballistic resistance followed by the A36 steel based panels which in turn have higher ballistic resistance than the 2024-T3 aluminum based panels. The A36 steel based panels have higher ballistic limit than the 1010 steel based panels which in turn have higher ballistic limit than the 1080 steel based panels. The behavior of characteristic impact variables during the ballistic impact phenomenon is analyzed.

Ballistic impact of steel fiber-metal laminates and plates

“…For this purpose, the material properties of the initial 2024-T3 aluminum alloy of the panels were updated in each validated model in order to represent the analyzed steel alloys. The employed material properties of these alloys are given in Table II (Bikakis et al , 2018). This approach was also implemented by Vo et al (2013) in order to investigate the influence of aluminum alloys with very different material properties on the low-impulse blast behavior of fiber-metal laminates.…”