基于近场动力学的落锤冲击PVB夹层玻璃数值模拟
引用文献：
胡晓东 齐欣 赵仕兴 张丽君 余志祥. 基于近场动力学的落锤冲击PVB夹层玻璃数值模拟[J]. 建筑结构，2023，48（07）：90-97.
HU Xiaodong QI Xin ZHAO Shixing ZHANG Lijun YU Zhixiang. Numerical simulation of drop hammer impact on PVB laminated glass based on peridynamics[J]. Building Structure，2023,48（07）：90-97.
摘要：为了研究聚乙烯醇缩丁醛夹层玻璃(PVB夹层玻璃)在刚性冲击下的破坏模式和力学响应，采用基于近场动力学的键基PD模型模拟落锤冲击作用下的冲击力的变化情况及玻璃裂纹开展，并与试验结果进行对比验证；通过改变上、下玻璃层厚度、PVB胶层厚度及冲击初速度，系统研究PVB夹层玻璃的裂纹扩展规律和耗能特性。结果表明：键基PD模型可以很好地再现PVB夹层玻璃断裂失效和裂纹扩展行为，和试验吻合度很高；玻璃厚度越厚抗冲击性能和耗能能力越强，下玻璃层厚度影响大于上玻璃层厚度影响。随着PVB胶层厚度的增加，PVB夹层玻璃抗冲击性能以及耗能能力随之增加。同等条件下，增大PVB胶层厚度，能有效增加玻璃的耗能能力，取得较大的单位厚度耗能比，但PVB胶层厚度大于1.14mm后增幅变小。保持冲击能量不变，增大落锤的冲击初速度，明显改变了PVB夹层玻璃的破坏模式，其抗冲击性能和玻璃耗能也随之增加。
关键词：近场动力学；PVB夹层玻璃；刚性冲击；胶层厚度；破坏模式；力学响应；
基金：四川省交通运输科技项目(2018-B-03)；2020年度交通运输行业重点科技项目(2020-MS3-101)。
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[16] 浮法玻璃：GB 11614—1999[S].北京：国家建筑材料工业局，1999.
[2] 黄小坤.玻璃幕墙及采光顶结构设计若干问题探讨[J].建筑结构，2009,39(1):88-92.
[3] BLESS S,CHEN T.Impact damage in layered glass[J].International Journal of Fracture,2010,162(1/2):151-158.
[4] 陈素文，陈志飞，陈星.中高应变率下夹层玻璃破碎后性能试验研究[J/OL].建筑结构学报，https://doi.org/10.14006/j.jzjgxb.2021.0798.
[5] 张喜德，骆迪，李嘉文，等.中空夹层玻璃板单向冷弯力学响应试验研究[J/OL].工业建筑，https://kns.cnki.net/kcms/detail/11.2068.TU.20220729.1647.016.html.
[6] MUNJIZA A,LEI Z,DIVIC V,et al.Fracture and fragmentation of thin shells using the combined finite-discrete element method[J].International Journal for Numerical Methods in Engineering,2013,95:478-498.
[7] 王勋，张其林，陶志雄，等.四边简支夹层玻璃承载性能理论和试验研究[J].建筑结构，2012,42(2):173-175.
[8] XU XIAOQING,XU JUN,CHEN JINGJING,et al.Investigation of dynamic multi-cracking behavior in PVB laminated glass plates[J].International Journal of Impact Engineering,2017,100:62-74.
[9] PELFRENE J,VAN DAM S,VAN PAEPEGEM W.Numerical analysis of the peel test for characterisation of interfacial debonding in laminated glass[J].International Journal of Adhesion and Adhesives,2015,62:146-153.
[10] 黄丹，章青，乔丕忠，等.近场动力学方法及其应用[J].力学进展，2010,40(4):448-459.
[11] BOBARU F,HA Y,HU W,et al.Damage progression from impact in layered glass modeled with peridynamics[J].Central European Journal of Engineering,2012,2(4):551-561.
[12] HU W,WANG Y,YU J,et al.Impact damage on a thin glass plate with a thin polycarbonate backing[J].International Journal of Impact Engineering,2013,62:152-165.
[13] OTERKUS E,GUVEN I,MADENCI E.Impact damage assessment by using peridynamic theory[J].Open Engineering,2012,2(4):523-531.
[14] 王木飞，李志强，张英杰.爆炸载荷作用下夹层玻璃动态响应的近场动力学数值模拟[J].太原理工大学学报，2022,53(5):869-876.
[15] 王京莲.基于近场动力学的精确数值积分算法[D].大连：大连理工大学，2021.
[16] 浮法玻璃：GB 11614—1999[S].北京：国家建筑材料工业局，1999.
Numerical simulation of drop hammer impact on PVB laminated glass based on peridynamics
Abstract: In order to study the damage pattern and mechanical response of polyvinyl butyral laminated glass(PVB laminated glass) under rigid impact, the bond-based PD model based on peridynamics was used to simulate the impact force and crack development of glass under the impact of drop hammer, and was compared with the test results. The crack expansion pattern and energy consumption characteristics of the PVB laminated glass were systematically studied by varying the upper and lower glass thicknesses, the thickness of PVB adhesive layer and the initial impact velocity. The results show that the bond-based PD model can simulate the spontaneous fracture failure and crack expansion behavior of PVB laminated glass, and the agreement with the test is high. The thicker the glass thickness, the stronger of impact resistance and energy dissipation capacity, and the effect of the lower glass layer thickness is greater than that of the upper glass layer thickness. As the thickness of PVB adhesive layer increases, the impact resistance and energy dissipation of PVB laminated glass increase. Under the same conditions, increasing the thickness of PVB adhesive layer can effectively increase the energy dissipation capacity of the glass and achieve a larger energy dissipation ratio per unit thickness, but the increase becomes smaller after the thickness of PVB adhesive layer is higher than 1.14mm. By keeping the impact energy unchanged and increasing initial impact velocity of the the drop hammer, the failure mode of PVB laminated glass is obviously changed, and the impact resistance and energy consumption of the glass are also increased.
Keywords: peridynamics; PVB laminated glass; rigid impact; thickness of adhesive layer; failure mode; mechanical response
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