Response of Sandwich Panels with Tubular Cores to Blast Load

Abstract:

This paper reports on the response of cladding sandwich panels with tubular cores to uniform blast load. The panels consist of thin-walled circular tubes (38 mm in diameter) made from aluminium 6063-T6 riveted laterally between the skin plates at varying spacing arrangements to provide four different types of panels. The skin exposed to the blast load is made from DOMEX 700 Steel while the back face skin is made from mild steel. Varying charge masses of explosive (ranging from 5 g to 40 g) with a prescribed load diameter of 40mm is detonated at a stand-off distance of 200 mm to provide a “uniform” blast load to the sandwich panels. Energy is dissipated mostly through the plastic deformation of the tubular cores. The results show an increase in average deflection with an increase in charge mass/impulse for the different types of panels. The cladding panels with the least interaction between the tubular cores are observed to have the highest energy absorption capabilities for a given charge mass.

• Periodical: Applied Mechanics and Materials (Volume 566)
• Pages: 581-585
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.566.581
• Online since: June 2014
• Authors: Steeve Chung Kim Yuen*, Gerald Nurick, Misha C. du Plessis
• Keywords: Blast Load, Cladding Structures, Structural Response, Thin-Walled Tubes

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