The main objective of this study is to investigate the influence of the finite element discretization on the simulation of failure and crack propagation in laminated glass subjected to rigid body impact. Numerical simulations for three different scenarios were performed in the environment of the advanced general-purpose multiphysics simulation software ANSYS LS-DYNA. A material model based on the Johnson-Holmquist II formulation was used in all simulations to represent the behavior of the glass. In the first scenario (Model 1), a pendulum test on a glass layer is simulated according to the guidelines of EN 12600:2003. The second scenario (Model 2) involves finite element analysis of a glass structure with radial discretization. The third scenario (Model 3) replicates the geometric model and discretization pattern of the first scenario but scaled and utilizes a finer finite element mesh. The influence of the finite element size is investigated by analyzing the results from the first (Model 1) and the third (Model 3) scenarios, while the importance of the finite element discretization pattern is studied comparing the results from all three models.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Numerical Modelling of Laminated Glass Response to Impact

  • Zhan Zhelev,
  • Milan Rashevski,
  • Maria Datcheva

摘要

The main objective of this study is to investigate the influence of the finite element discretization on the simulation of failure and crack propagation in laminated glass subjected to rigid body impact. Numerical simulations for three different scenarios were performed in the environment of the advanced general-purpose multiphysics simulation software ANSYS LS-DYNA. A material model based on the Johnson-Holmquist II formulation was used in all simulations to represent the behavior of the glass. In the first scenario (Model 1), a pendulum test on a glass layer is simulated according to the guidelines of EN 12600:2003. The second scenario (Model 2) involves finite element analysis of a glass structure with radial discretization. The third scenario (Model 3) replicates the geometric model and discretization pattern of the first scenario but scaled and utilizes a finer finite element mesh. The influence of the finite element size is investigated by analyzing the results from the first (Model 1) and the third (Model 3) scenarios, while the importance of the finite element discretization pattern is studied comparing the results from all three models.