PVB夹层玻璃的失效扩展
发布时间：2018-08-28 16:55
【摘要】：本文为探讨聚乙烯醇缩丁醛(PVB)夹层玻璃断裂失效的扩展规律,运用ANSYS/LSDYNA软件对夹层玻璃在聚能射流冲击作用下的变化进行了仿真研究,分析了玻璃厚度对断裂破坏效果及PVB薄膜厚度对失效扩展特性的影响。结果表明:冲击作用下玻璃厚度对夹层玻璃断裂破坏的影响较平缓。随着PVB薄膜厚度的增加,玻璃试件的失效扩展特性(速度、起始加速度、后期减速度和稳定加速度)减小,其吸能特性增强,断裂失效的扩展过程趋于平缓。并从理论方面判定夹层玻璃在冲击过程中的失效扩展速度主要取决于应力分量,且PVB粘弹性层具有较强的吸能作用。
[Abstract]:In order to investigate the fracture and failure propagation of polyvinyl butyral (PVB) laminated glass, the change of laminated glass under the action of shaped jet impingement was simulated by ANSYS/LSDYNA software. The effect of glass thickness on fracture failure and failure propagation of PVB film was analyzed. The results show that the effect of glass thickness on the fracture and failure of laminated glass is more moderate. With the increase of PVB film thickness, the failure propagation characteristics (velocity, initial acceleration, late deceleration and steady acceleration) of glass specimens decrease, the energy absorption characteristics increase, and the propagation process of fracture failure tends to smooth. The failure propagation rate of laminated glass during impact is mainly determined by the stress component, and the PVB viscoelastic layer has strong energy absorption.
【作者单位】： 中北大学化工与环境学院;
【分类号】：TQ171.727
本文编号：2210001
[Abstract]:In order to investigate the fracture and failure propagation of polyvinyl butyral (PVB) laminated glass, the change of laminated glass under the action of shaped jet impingement was simulated by ANSYS/LSDYNA software. The effect of glass thickness on fracture failure and failure propagation of PVB film was analyzed. The results show that the effect of glass thickness on the fracture and failure of laminated glass is more moderate. With the increase of PVB film thickness, the failure propagation characteristics (velocity, initial acceleration, late deceleration and steady acceleration) of glass specimens decrease, the energy absorption characteristics increase, and the propagation process of fracture failure tends to smooth. The failure propagation rate of laminated glass during impact is mainly determined by the stress component, and the PVB viscoelastic layer has strong energy absorption.
【作者单位】： 中北大学化工与环境学院;
【分类号】：TQ171.727
【相似文献】
相关期刊论文 前10条
1 华彬;;复合玻璃用PVB中间夹层膜[J];化工新型材料;1984年03期
2 肖艳;;透视PVB夹层玻璃及其市场[J];玻璃与搪瓷;2011年05期
3 ;PVB胶片对夹层玻璃产品质量的影响[J];玻璃;2007年05期
4 方秉素;; “PVB”膜配制中增塑剂的合理使用[J];陶瓷;1991年04期
5 陈霞真;夹层玻璃PVB中间膜的国产化[J];上海建材;1994年04期
6 刘辉;李陵岚;叶楚平;程珍贤;;PVB光致变色夹层安全玻璃的制备及性能研究[J];中国胶粘剂;2007年11期
7 ;PVB在高级夹层玻璃中的有效加工[J];上海建材;2011年03期
8 汤宪一;;抗静电、无衬纸PVB薄膜的制造技术[J];中国陶瓷;1993年06期
9 徐美君;简介夹层玻璃的配套材料──PVB胶片[J];中国建材装备;1995年02期
10 许伟光;;浅谈PVB夹层玻璃的生产工艺及常见问题分析[J];门窗;2010年09期
相关重要报纸文章 前1条
1 张文英;天津推出汽车玻璃用PVB胶片[N];中国化工报;2003年
，本文编号：2210001
本文链接：https://www.wllwen.com/kejilunwen/huagong/2210001.html
