Investigation of blast resistance of cladding with square dome-shaped Kirigami folded structures as core

Abstract. This study examines the response of Square Dome-shaped Kirigami (SDK) structures when used as a core in cladding systems under blast loading conditions. A numerical model SDK foldcore is developed on commercially available software ABAQUS. The made an aluminium sheet placed between two rigid plates. put quasi-static compression test to simulate crushing effect and results are calibrate simulation with experimental data from literature. To evaluate resistance system, four different levels conditions applied top plate using Trinitrotoluene (TNT) explosive, distance 1500 mm centre plate. structural then compared that traditional Honey Comb (SHC) same aims relative performance cores terms their ability mitigate effects loading. demonstrated capability disperse energy over wider area, thus decreasing stress system experienced. show provides significant improvement absorption, maximum reduction 70% peak load transmitted case no cladding. by much more consistent than SHC core, even due its favourable plastic deformation, which prevents complete densification. These suggest folded structure has better mitigating