A three-dimensional computational framework for impact fracture analysis of automotive laminated glass

作者：Chen, Shunhua; Zang, Mengyan^*; Xu, Wei

来源：Computer Methods in Applied Mechanics and Engineering, 2015, 294: 72-99.

DOI：10.1016/j.cma.2015.06.005

• Laminated glass
• Cohesive model
• Contact algorithm
• Impact fracture
• Coupling model

This work is concerned with a three-dimensional modelling of impact fracture behaviours of laminated glass. A cohesive model that is able to account for path-dependent behaviours is extended to three dimensions to predict the onset and evolution of fracture. A compact and efficient adjacency-based topological data structure termed TopS is utilized to store and manipulate mesh information. In view of contact characteristics, a global contact search algorithm is developed, which includes a regular search and an adaptive search. The regular search is performed by recourse to a linear contact algorithm named LC-Grid. The adaptive search algorithm is proposed to efficiently update new contacts during fracture. Additionally, a local contact search algorithm is developed, which facilitates the judgements of node-face and edge-edge contacts with a unified inside-outside approach. Afterwards, the cohesive model is coupled with the frictional contact algorithm to account for the unilateral and frictional sliding effects of cohesive elements under mixed mode loading. Finally, the impact fracture behaviours of a laminated glass plate are simulated. The simulation results compare well with the experimental outcomes, which validates the capability of the proposed method in the impact fracture analysis of laminated glass.

• 出版日期2015-9-1
• 单位华南理工大学