Experimental study on the dynamic behaviour of glass fitted with safety window film with a small-scale drop weight set-up
Experimental study on the dynamic behaviour of glass fitted with safety window film with a small-scale drop weight set-up
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DOI：
10.1016/j.ijimpeng.2014.06.002
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发表时间：
2014-11
影响因子：
5.1
通讯作者：
S. Dam;Joren Pelfrene;S. D. Pauw;W. Paepegem
中科院分区：
文献类型：
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作者：
S. Dam;Joren Pelfrene;S. D. Pauw;W. Paepegem
随着人们对战略建筑物可能受到攻击的认识的提高，沿着增加了用安全窗膜改造现有窗户以提高抗冲击性的做法。然而，目前玻璃面板的分类仅基于标准化测试的离散结果，而没有任何仪器。在本文中，一个多功能的小规模的落重试验装置的设想，这是广泛的仪表（加速度计，力传感器，位移传感器，高速视觉观察），以获得更多的洞察力，在玻璃的机械冲击响应安装了安全窗膜。由玻璃的高得多的刚度确定的弹性响应是非常可再现的。冲击表面（玻璃与薄膜侧）具有较大的影响，而张紧表面和层压表面（空气与锡侧）则没有影响。膜厚度仅在单独测试膜（无玻璃基材）时或在玻璃的软冲击的情况下具有影响。
Retrofitting existing windows with a safety window film, to improve impact resistance, has been increasing along with the awareness of potential attacks on strategic buildings. However, current classification of glass panels is based solely on discrete outcomes of standardised tests without any instrumentation. In this paper, a versatile small-scale drop weight test set-up is conceived which is widely instrumented (accelerometer, force sensor, displacement sensor, high-speed visual observation) in order to gain more insight in the mechanical impact response of glass fitted with a safety window film. The elastic response, determined by the much higher stiffness of the glass, was very reproducible. The impacted surface (glass vs. film side) had a large influence, whereas the tensioned surface and laminated surface (air vs. tin side), do not. The film thickness only had an influence when the film was tested separately (without glass substrate) or in case of a soft impact of glass.