Research on Impact Fracture Behavior of the Laminated Glass Based on Cohesive Zone Model

doi:10.3901/JME.2017.22.176

Abstract

Abstract: The studies on the impact fracture characteristics of the laminated glass make great contributions to the design of the windshield, the pedestrian protection and the road traffic accident reconstruction. Considering that the traditional finite element method can not describe the impact fracture behavior of brittle materials effectively, a finite element model which is suitable to simulate the impact fracture behavior of laminated glass is proposed, based on the theory of the bilinear cohesive zone model. The finite element software LS-DYNA which contains the cohesive zone model, is used to simulate the whole process of the impact fracture behavior of laminated glass. In order to evaluate the simulation results, a drop weight test for a laminated glass plate is designed and carried out. The numerical simulation results agree well with the corresponding test results in terms of the fracture patterns and the impact acceleration, which verifies the capacity of the proposed method above in the impact fracture analysis of laminated glass.

Key words: cohesive zone model, impact fracture, laminated glass, traction-separation law

CLC Number:

U465

LIN Dejia, ZANG Mengyan. Research on Impact Fracture Behavior of the Laminated Glass Based on Cohesive Zone Model[J]. Journal of Mechanical Engineering, 2017, 53(22): 176-181.

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