建筑夹层玻璃风致飞射物冲击破坏易损性研究

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摘要为分析建筑夹层玻璃遭受风致飞射物冲击时的破坏特征和机理，定量评价其易损性，采用有限元方法开展冲击破坏数值模拟研究。基于LS-DYNA建立飞射物冲击夹层玻璃的有限元模型，通过有限元数值模拟与试验对比验证有限元数值模拟方法的可靠性；分析球状飞射物冲击夹层玻璃时的裂纹开展和应力传播特征；改变球状飞射物的冲击位置、半径大小、材质和夹层玻璃面板长宽比，研究飞射物对夹层玻璃冲击效应的影响；采用双参数Weibull分布建立夹层玻璃冲击失效概率计算，量化其易损性。结果表明，与夹层玻璃中部和边部相比，角部抗冲击性能差；相同冲击速度下，夹层玻璃冲击失效概率随着飞射物半径的增加而增大；与石球和木球相比，钢球对夹层玻璃破坏临界速度低；当面板面积恒定时，随着长宽比的增加，其冲击失效概率先减小后增大。

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	张勇
	李寿科
	郭凡
	雷佳妍
	彭雄
	孙洪鑫
	刘敏

关键词 ：风致飞射物, 夹层玻璃, 数值模拟, 失效概率

Abstract：The finite element simulation method is used to study the impact vulnerability of building laminated glasses for windborne debris. The finite element model of laminated glass impacted by windborne debris is established with LS-DYNA, and the reliability of the finite element model is verified by comparative experiments and numerical simulation results. The crack development and stress propagation of laminated glass impacting by spherical windborne debris are analyzed. By changing the impact position and the aspect ratio of the laminated glass panel, as well as with different radius and material of windborne debris, the impact effects on the laminated glass are studied. The impact failure probability of the laminated glass is calculated by using the two-parameter Weibull distribution. It is shown that, compared impact location with the middle and edge of laminated glass, the impact resistance with corner impact is the worst; at the same impact velocity, the failure probability of laminated glass increases with the increasement of windborne debris radius; compared with stone debris and wood debris, the critical impact damage velocity is the lowest when steel debris impact laminated glass; as the panel area is constant, the failure probability decreases firstly and then increases with increasement of aspect ratio.

Key words： windborne debris laminated glass numerical simulation failure probability

收稿日期: 2023-08-15 出版日期: 2024-05-15

引用本文:

张勇，李寿科，郭凡，雷佳妍，彭雄，孙洪鑫，刘敏. 建筑夹层玻璃风致飞射物冲击破坏易损性研究[J]. 振动与冲击, 2024, 43(9): 267-275.
ZHANG Yong, LI Shouke, GUO Fan, LEI Jiayan, PENG Xiong, SUN Hongxin, LIU Min. Vulnerability of building laminated glass against wind-induced projectiles impact. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(9): 267-275.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2024/V43/I9/267

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