Volume 33 Issue 6
Nov 2019
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YAO Pengfei, HAN Yang, YAO Fen, LI Zhiqiang. Simulation of the Impact Fracture Behavior of Double Laminated Glass Based on Intrinsic Cohesive Model[J]. Chinese Journal of High Pressure Physics, 2019, 33(6): 064105. doi: 10.11858/gywlxb.20190718
Citation: YAO Pengfei, HAN Yang, YAO Fen, LI Zhiqiang. Simulation of the Impact Fracture Behavior of Double Laminated Glass Based on Intrinsic Cohesive Model[J]. Chinese Journal of High Pressure Physics, 2019, 33(6): 064105. doi: 10.11858/gywlxb.20190718

Simulation of the Impact Fracture Behavior of Double Laminated Glass Based on Intrinsic Cohesive Model

doi: 10.11858/gywlxb.20190718
  • Received Date: 21 Jan 2019
  • Rev Recd Date: 19 Mar 2019
  • In order to investigate the crack propagation law of double layered laminated glass (LG) under impact load, a model for calculating the dynamic response of the both sides support LG under the impact of a spherical hammer head is established by using the zero-thickness intrinsic cohesive method. The maximum principal stress failure criterion is applied to the intrinsic cohesive element. The effects of penalty stiffness K and thickness of glass on crack formation path, range and number, as well as the displacement of lower panel were discussed. Simulation results show that: (1) under the impact load, a large number of fine cracks and glass particles are first generated in the center of LG upper glass plate, and then a large number of circumferential cracks are generated in the process of continuous outward propagation of radial cracks; (2) with the increase of the K value of the glass penalty stiffness, the crack growth range and the number of cracks decrease, and the center displacement of the lower glass plate decreases; (3) with the increase of glass thickness, the crack range and number decrease, and the center displacement of the lower glass plate decreases. The results provide a direct basis for LG shock resistant design and safety protection.

     

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