Experimental Investigation into Deformation and Damage Patterns of Sandwich Plates with Aluminum Foam Core Subjected toBlast Loading

doi:10.3969/j.issn.1000-1093.2016.08.017

Abstract

Abstract: The deformation and damage patterns of clamped sandwich plates with aluminum foam core subjected to blast loading are investigated experimentally. The deflections of the center point on the rear face sheet of sandwich plates under five blast loadings are obtained. The deformation and damage patterns of the front face sheet, aluminum foam core and rear face sheet subjected to different blast loadings are given also. Two types of the fracture mechanism of the foam cores, which are shear fracture and tensile fracture, are analyzed. The research results show that the foam core subjected to intensive dynamic loading is deformed in a “progressive” compressive mode, and the maximum deflection of the rear face sheet quadratically increases with the blast impulse approximately.

Key words: ordnance science and technology, blast wave, aluminum foam, sandwich plate, deformation, deformation and damage patterns

CLC Number:

O383⁺.1

WANG Tao, YU Wen-li, QIN Qing-hua, WANG Jin-tao，WANG Tie-jun. Experimental Investigation into Deformation and Damage Patterns of Sandwich Plates with Aluminum Foam Core Subjected toBlast Loading[J]. Acta Armamentarii, 2016, 37(8): 1456-1463.

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