1. 上海交通大学 海洋工程国家重点实验室， 上海 200240； 2. 上海交通大学 高新船舶与深海开发装备协同创新中心， 上海 200240； 3. 上海交通大学 船舶海洋与建筑工程学院， 上海 200240； 4. 中国建筑科学研究院有限公司， 北京 100013
出版日期:2020-03-28发布日期:2020-04-09通讯作者:杨健，男，教授，博士生导师，E-mail：j.yang.1@sjtu.edu.cn.作者简介:刘炘炜（1992-），男，江苏省淮安市人，硕士生，主要研究方向为夹层玻璃抗冲击性能、夹层玻璃开裂后性能.基金资助:国家重点研发计划项目（2017YFC0806100），上海市科委科研计划项目（17DZ1200306），国家自然科学基金项目（51508543），上海市教委科研创新项目（14ZZ027）Post-Breakage Strength of Laminated Glass Panel Cracked by Impact
LIU Xinwei 1,2,3,YANG Jian 1,2,3,WANG Xinger 1,2,3,LIU Qiang 41. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China; 3. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 4. China Academy of Building Research, Beijing 100013, China
Online:2020-03-28Published:2020-04-09摘要/Abstract
摘要： 选用混合浮法和钢化玻璃的双层和三层夹层玻璃，并采用单种SentryGlas@Plus (SGP)或混合SGP/聚乙烯醇缩丁醛(PVB)胶层，对5组15块冲击致损后的夹层玻璃板进行静载试验.通过分析试件的荷载-挠度关系，研究玻璃裂纹模态、胶层性能对夹层玻璃开裂后强度的影响.试验结果显示：底层玻璃的裂纹模态对夹层玻璃构件的承载方式起着决定性作用；相比于钢化玻璃，浮法玻璃能形成“更有利的碎片形状”，因而能形成更好的传力路径并显著影响夹层玻璃的开裂后强度；对于双层夹层玻璃，底层为浮法玻璃的开裂后强度比底层为钢化玻璃的开裂后强度高46.5%；对于三层夹层玻璃，采用混合SGP和PVB胶层时开裂后强度仅为采用双层SGP的37%；从破坏模式而言，前者破坏后出现中心贯穿，呈现不利的脆性破坏特征，而SGP/PVB混合夹层玻璃则增加了样本的延性，充分发挥了胶层的性能.
关键词: 夹层玻璃, 开裂后强度, 裂纹模态, SentryGlas@Plus胶, 冲击破坏, 静载试验
Abstract: In this paper, different glass configurations using annealed glass (ANG) and fully tempered glass (FTG) as well as different interlayer combinations were introduced. Fifteen laminated glass (LG) panels in five groups cracked by impact were statically tested. Through analyzing the load-displacement relationship, the effects due to the crack pattern and interlayer type on the post-breakage performance were examined. The results show that the crack pattern of inner glass dominates the load bearing mechanism of LG. Compared to FTG, ANG can produce beneficial crack pattern and generate better load transferring path to retain greater strength. Compared to inner FTG, an increase of 46.5% in post-breakage strength can be found when using inner ANG. The static resistance of LG using hybrid SentryGlas@Plus (SGP)/polyvinyl butyral（PVB）is only 37% of that uses double SGP interlayers. However, the LG using double SGP interlayers has the failure mode of central penetration which presents brittle characteristics and is unfavorable in engineering practice. The LG using hybrid SGP/PVB shows greater ductility while the interlayer can fully function.
Key words: laminated glass, post-breakage strength, crack pattern, SentryGlas@Plus(SGP) interlayer, impact failure, static load test
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