Failure Analysis of Laminated Architectural Glass Panels Subjected to Blast Loading
Failure Analysis of Laminated Architectural Glass Panels Subjected to Blast Loading
复制标题
DOI：
10.2495/su020041
复制
发表时间：
2002-05
期刊：
影响因子：
3.9
通讯作者：
L. Dharani;Jun Wei;F. Ji
中科院分区：
文献类型：
--
作者：
L. Dharani;Jun Wei;F. Ji
采用三维非线性有限元模型对夹层建筑玻璃在爆炸荷载作用下的破坏概率进行了预测。一个均匀分布的压力，模拟爆炸冲击波产生的爆炸载荷，施加在层压板的一个暴露表面上。在分析中，玻璃层被建模为弹性材料，而聚合物中间层被处理为粘弹性材料。采用双参数威布尔分布来描述无载荷玻璃层的累积失效概率。对复合材料的几何性能和材料性能以及爆炸载荷参数的影响进行了参数化研究。这些分析结果可用于评价新型夹层建筑玻璃系统的爆炸性能，并可用于现有玻璃系统的改造或升级方案的设计。
A 3-D nonlinear finite element model is used to predict the probability of failure of laminated architectural glass subjected to blast loading. A uniformly distributed pressure, simulating blast loading generated by a shock wave from the discharge of a bomb, is applied to one of the exposed surfaces of the laminate. In the analysis, the glass ply is modeled as an elastic material while the polymer interlayer is treated as a viscoelastic material. Two-parameter Weibull distribution is adopted to describe the cumulative probability of failure of the unloaded glass ply. A parametric study is presented showing the effect geometric and material properties of the laminate and the blast load parameters. These analytical results can be used in evaluating the blast performance of new laminated architectural glazing systems and in the design of retrofit or upgrade schemes for the existing glazing systems.