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首页> 外文期刊>European Journal of Glass Science and Technology, PartA. Glass Technology >Experimental and simulation studies on fracture of laminated glass having polyvinyl butyral and ethyl vinyl acetate interlayers of different critical thicknesses due to impact load
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Experimental and simulation studies on fracture of laminated glass having polyvinyl butyral and ethyl vinyl acetate interlayers of different critical thicknesses due to impact load

机译：具有不同临界厚度的层压玻璃骨折的实验和仿真研究，不同临界厚度引起的冲击载荷

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摘要

Impact strength of laminated glass (LG) is the most significant mechanical property due to architectural, glazing, automotive, and decorative applications. The present work includes destructive ball drop testing and determination of deformation, equivalent strain and equivalent stress by simulation ofLGs with different inter-layers (polyvinyl butyral (PVB) Ethyl vinyl acetate (EVA)) and their different critical thicknesses (0'38, 0-76,1-52 mm). A comparative evaluation of the fracture pattern obtained in LG samples and the simulation results along with the analysis of variance (ANOVA) reflects the effect of impact energy absorbed by the LG, interlayer type and thickness on the deformation and equivalent stress. The failure processes and damage characteristics are predicted/explained from the results of the simulation. The ball drop testing was performed following EN 356 and it was simulated using ANSYS 14-5. It is concluded that LG-PVB is suited for impact prone structures whereas the LG-EVA with higher critical interlayer thickness could also be competitive. The deformations/fracture pattern of LG shows good agreement with the ANSYS simulation. The maximum deformation (MD) and maximum equivalent stress (MES) increases with the energy absorbed by LG and mostly MD decreases and MES increases with increment in critical interlayer thickness. The height of impact is the most significant factor for both MD and MES. The interlayer type is more significant compared to interlayer thickness for MD, whereas for MES interlayer thickness is more significant.
机译：由于建筑，玻璃，汽车和装饰应用，夹层玻璃（LG）的冲击强度是最重要的机械性能。本作本作包括用不同层（聚乙烯基缩丁醛（PVB）乙基乙酸乙酯（EVA））及其不同的临界厚度（0'38,0 -76,1-52 mm）。在LG样品中获得的裂缝模式的比较评价和模拟结果随着方差的分析（ANOVA）反映了由LG，层间类型和厚度吸收的冲击能量对变形和等效应力的影响。从模拟结果预测/解释失败过程和损坏特征。在EN 356之后进行球滴测试，并使用ANSYS 14-5进行模拟。得出结论，LG-PVB适用于影响易于结构，而具有更高临界层间厚度的LG-EVA也可能具有竞争力。 LG的变形/裂缝模式与ANSYS仿真显示了良好的一致性。最大变形（MD）和最大等效应力（MES）随着LG吸收的能量而增加，并且大多数MD降低，MES随着临界中间层厚度的增量而增加。影响的高度是MD和MES最重要的因素。与MD的中间层厚度相比，中间层类型更大，而对于MES中间层厚度更显着。

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