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.
Highlights
Fiber-metal laminates are hybrid composite materials, consisting of alternating metal layers bonded to fiber-reinforced prepreg layers
Using the five aforementioned validated finite element models [13], we study the effect of the mechanical properties of different commercially available steel alloys on the ballistic resistance of steel based fiber-metal laminates and monolithic steel plates
Fiber-metal laminates and monolithic metal plates consisting of 304 stainless steel, 1010, 1080, 4340, A36 steel alloys and DP 590 dual phase steel are examined
Summary
Fiber-metal laminates are hybrid composite materials, consisting of alternating metal layers bonded to fiber-reinforced prepreg layers. The mechanical evaluation of steel based fiber-metal laminates includes their impact response, fatigue characteristics, creep behavior, hygrothermal conditioning, response to earthquake loading [1,2,3,4,5,6,7,8,9]. Extensive research has been implemented in order to investigate and compare the influence of the mechanical properties of different steel alloys on the ballistic resistance of glass-reinforced fiber-metal laminates and monolithic metal plates consisting of these alloys. The presented results shed light to the ballistic impact response of steel plates, GLARE plates and steel based fiber-metal laminates and will help engineers and researchers to understand the behavior of the examined materials along with the effect of using different metal alloy for their manufacturing. No other evaluation of the ballistic resistance of fiber-metal laminates consisting of the 6 steel alloys examined in this article is known to the authors
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