Mechanic of Advanced and Smart Materials
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Numerical and Experimental Analysis of Response of Sandwich Panel with Fiber Metal Laminate (FML) Skin and Aluminum Foam Core under High Velocity Impact

Document Type : Original Article

Authors

Pooya Pirali
Arsalan Sahmani
Mohsen Heydari Beni

Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.

https://doi.org/10.66224/masm.4.3.404
Abstract
In recent years, research on sandwich plates has increased due to capabilities such as energy absorption, strength to weight ratio, thermal insulation, and so on in major industries such as aerospace and marine industries. In this study, by using low-density aluminum foams and making sandwich planels by FML layers (including aluminum and composite sheets) and aluminum foam core, an experiment was carried out with the help of a high speed impact with gas gun, and the effect of density of foam, number of FML layers, velocity and mass of the projectile were investigated in terms of energy absorption of sandwich structures and ballistic limit of the projectile. Also, the results of empirical experiments on foam and composite layers, collision simulation and bullet penetration in a sandwich structure were performed using LS-DYNA software, and the results were compared and verified with experimental results. Experimental experiments and parametric studies show that aluminum foam (33%) and aluminum sheet (25%) have the highest energy absorption against the Bullet. Also, with the addition of a FML layer, the energy absorption of the sandwich plate increased by 40%.

Keywords

sandwich plate
FML
High velocity impact
energy absorption
penetration
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Mechanic of Advanced and Smart Materials
Volume 4, Issue 3
Autumn 2024
Pages 404-424

  • Receive Date 27 November 2024
  • Revise Date 18 December 2024
  • Accept Date 30 December 2024

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