Numerical Simulation of Dynamic Response of Laminated Glass Subjected to Blast Load

doi:10.3969/j.issn.1000-1093.2018.07.016

Abstract

Abstract: The dynamic response of laminated glass subjected to blast load is simulated using LS-DYNA finite element software in order to study the dynamic response of laminated glass under explosive loading. The rules in dynamic response of laminated glass are studied systematically by changing the thicknesses of the external and internal glasses without change of total thickness, the interaction between explosion pro- ducts is presented, the energy absorption efficiencies of different parts of the laminated glass are analyzed, and the crack propagation process is also observed. The results indicate that the variation of glass thickness has a clear effect on the dynamic response of structure at shorter explosive distance, and the influence, however, is slight with increase in explosive distance. Explosion products damage the glass before air shock wave does. The external glass has the maximum energy absorption efficiency, the PVB glue layer has the less, and the internal glass has the least. Under blast load, the laminated glass has most circumferential cracks and relatively few radial cracks on it. Key

Key words: blastload, laminatedglass, energyabsorption, crackpropagation, dynamicresponse, numericalsimulation

CLC Number:

O383⁺.3

ZHANG Xiao-ying, LI Sheng-jie, LI Zhi-qiang. Numerical Simulation of Dynamic Response of Laminated Glass Subjected to Blast Load[J]. Acta Armamentarii, 2018, 39(7): 1379-1388.

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第39卷
第7期2018 年7月兵工学报ACTA
ARMAMENTARIIVol.39No.7Jul.2018

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