多层复合PVB夹层玻璃的低速冲击性能研究  

Low-Speed Impact Performance of Multi-Layer Composite PVB Laminated Glass

作　　者：陈振海 程炳华 杨会伟[2] 陈鹏程[2] CHEN Zhenhai;CHENG Binghua;YANG Huiwei;CHEN Pengcheng(Shanxi Second Construction Group Co.,Ltd.,Taiyuan 030013,China;College of Civil Engineering,Taiyuan University of Technology,Taiyuan 030002,China)

机构地区：[1]山西二建集团有限公司,太原030013 [2]太原理工大学土木工程学院,太原030002

出　　处：《硅酸盐通报》2024年第12期4597-4607,共11页Bulletin of the Chinese Ceramic Society

基　　金：山西省基础研究计划项目(自由探索类)(202203021212256);山西省住房和城乡建设厅科学技术计划项目(K20220319)。

摘　　要：采用ABAQUS有限元软件,构建落锤冲击聚乙烯醇缩丁醛酯(PVB)夹层玻璃板的1/4对称模型,在其网格单元间嵌入零厚度内聚力粘结单元,模拟冲击失效过程,在相同的总厚度条件下,分析了玻璃层数、PVB厚度对夹层玻璃抗冲击性能的影响。结果表明,总厚度不变的情况下,玻璃层数对夹层玻璃的冲击失效有明显的影响。玻璃厚度一定,当PVB厚度h≤1.9 mm时,适当减小PVB厚度能改善双层夹层玻璃的吸能效果;当PVB厚度h>1.9 mm时,适当增加PVB厚度能改善双层夹层玻璃的吸能效果。对于三层夹层玻璃,上层PVB厚度的变化对玻璃抗冲击性能的影响更加明显且适当减小上层PVB厚度能改善三层夹层玻璃的吸能效果。A finite element software ABAQUS was used to establish a 1/4 symmetric model of falling hammer impacting polyvinyl butyral ester(PVB)laminated glass plate,and a zero-thickness cohesion unit was inserted between grid cells of laminated glass to simulate the impact damage process of laminated glass.Under the case of a constant thickness,the effects of number of glass layers and PVB thickness on the impact resistance of laminated glass were analyzed.The results show that under the condition of constant total thickness,the effect of number of glass layers on the impact damage performance of laminated glass is more significant.Assuming that glass thickness is certain,when the PVB thickness h≤1.9 mm,the appropriate reduction of PVB thickness can improve the energy-absorbing effect of double laminated glass.When the PVB thickness h>1.9 mm,the appropriate increase in thickness of PVB can improve the energy-absorbing effect of double laminated glass.For three-layer laminated glass,the change of upper layer of PVB thickness has a more obvious effect on the impact resistance of glass,and the appropriate reduction of upper layer of PVB thickness improves the energy-absorbing effect of three-layer laminated glass.

关 键 词：PVB夹层玻璃 冲击荷载 有限元分析 内聚力单元 玻璃层数 裂纹扩展 

分 类 号：TQ171[化学工程—玻璃工业] O347.3[化学工程—硅酸盐工业]