Modelling of safety glass for crash simulation
Modelling of safety glass for crash simulation
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DOI：
10.1016/j.commatsci.2003.08.023
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发表时间：
2003-11
影响因子：
3.3
通讯作者：
P. D. Bois;S. Kolling;W. Fassnacht
中科院分区：
文献类型：
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作者：
P. D. Bois;S. Kolling;W. Fassnacht
在本文中，我们提出了一种数值技术，通过有限元模拟层压安全玻璃的碰撞行为。作为本文的主要工作，我们考虑了两个重合单元：玻璃的壳单元和超弹性聚乙烯夹层的膜单元。我们给出了一个概述超弹性模型，这是用于碰撞模拟和调查的材料定律Blatz-Ko，Mooney-Rivlin和Ogden。所得应力-应变曲线与夹层的实验结果进行了拟合。为了比较，我们使用一个材料模型与分段线性塑性和夹层玻璃模型分配材料属性的积分点。作为实际应用，我们模拟了一个球到玻璃板的影响，并调查在屋顶碰撞挡风玻璃的行为。
In this paper, we present a numerical technique to simulate the crash behaviour of laminated safety glass via finite elements. As the main aspect of this work, we consider two coincided elements: a shell element for glass and a membrane element for the hyperelastic PVB-interlayer. We give an overview of hyperelastic models, which are used in crash simulations and investigate the material laws by Blatz–Ko, Mooney–Rivlin and Ogden. The obtained stress–strain curves are fitted by experimental results of the interlayer. For a comparison, we use an one-material-model with piecewise linear plasticity and a laminated glass model assigning material properties to the integration points. As practical applications, we simulate an impact of a sphere into a glass plate and investigate the behaviour of a windscreen during a roof crash.