基于内聚力模型的夹层玻璃冲击破坏仿真分析

doi:10.3901/JME.2017.22.176

机械工程学报 ›› 2017, Vol. 53 ›› Issue (22): 176-181.doi: 10.3901/JME.2017.22.176

基于内聚力模型的夹层玻璃冲击破坏仿真分析

林德佳, 臧孟炎

华南理工大学机械与汽车工程学院广州 510640

收稿日期:2016-11-17 修回日期:2017-05-22 出版日期:2017-11-20 发布日期:2017-11-20
通讯作者: 臧孟炎(通信作者),男,1961年出生,博士,教授,博士研究生导师。主要研究方向为汽车被动安全CAE技术开发与应用。E-mail:myzang@scut.edu.cn
作者简介:林德佳,男,1992年出生。主要研究方向为汽车工程CAE技术与应用分析。E-mail:meldj@mail.scut.edu.cn
基金资助:
广东省对外科技合作资助项目（2013B051000012）。

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

LIN Dejia, ZANG Mengyan

School of Automotive Engineering, South China University of Technology, Guangzhou 510640

Received:2016-11-17 Revised:2017-05-22 Online:2017-11-20 Published:2017-11-20

摘要/Abstract

摘要： 夹层玻璃冲击破坏特性的研究对于风挡玻璃设计、行人保护及交通事故再现具有重要意义。针对传统有限元方法不能有效描述脆性材料冲击破坏的问题，在介绍双线性内聚力模型基本理论的基础上，建立适用于夹层玻璃冲击破坏现象的有限元模型，使用已嵌入内聚力模型的有限元软件LS-DYNA仿真分析夹层玻璃的冲击破坏过程。同时，设计简易夹层玻璃板落锤试验装置，以评价仿真分析结果。夹层玻璃板的裂纹分布和冲击加速度的仿真与试验结果的良好一致性，验证了内聚力模型与仿真分析方法的有效性。

关键词: 冲击破坏, 夹层玻璃, 内聚力-分离量法则, 内聚力模型

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

中图分类号:

U465

林德佳, 臧孟炎. 基于内聚力模型的夹层玻璃冲击破坏仿真分析[J]. 机械工程学报, 2017, 53(22): 176-181.

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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基于内聚力模型的夹层玻璃冲击破坏仿真分析

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

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