夹层玻璃落球冲击剥离性能研究

【作者】 张治权；

【导师】 陈红征；

【作者基本信息】 浙江大学 ， 材料工程， 2013， 硕士

【摘要】 夹层玻璃正在日益广泛地应用于建筑工程,如玻璃幕墙、高层窗、玻璃门、浴室及运动场所,对夹层玻璃的研究是建筑玻璃应用技术研究的一个热点。依据GB1576-3.3-2009《建筑用安全玻璃第3部分—夹层玻璃》中对于建筑用夹层玻璃落球冲击试验及性能的要求,本论文研究了夹层玻璃抗冲击性能的影响因素,从而探讨了提高夹层玻璃抗冲击性能的可行性措施。论文首先综述了夹层玻璃安全性能影响因素及提高夹层玻璃安全性能措施的研究现状。分析得出夹层玻璃抗冲击剥离性能的影响因素主要包括胶片材料、胶片厚度、玻璃与胶片的粘结性以及玻璃的特殊处理等。通过应用ANSYS Workbench平台的显式动力学方法,研究了夹层玻璃落球冲击试验时的应力、应变、变形情况及夹层玻璃受冲击时的时变机理。对夹层玻璃的分析采用几何非线性和大变形效应,并充分考虑聚乙烯醇缩丁醛(PVB)胶片层的影响；对于PVB胶片,采用超弹性考虑其非线性,采用Maxwell模型考虑其粘弹性,得到了较好的数值模拟结果。通过不同条件下落球冲击试验对夹层玻璃的剥离性能进行了研究,对获取的大量夹层玻璃落球冲击试验数据进行了理论分析和数值模拟,探讨了夹层玻璃的夹层厚度、玻璃厚度、玻璃材料以及制造工艺等因素对夹层玻璃落球冲击剥离性能的影响规律。在此基础上,提出了提高夹层玻璃安全性能途径的一些可行性建议,对质量监管部门对行业的监管及生产企业质量的提升具有一定指导意义。更多还原

【Abstract】 Nowadays, laminated glass is widely used in building construction, such as glass curtain walls, building windows, glass doors, bathrooms and stadiums. More researches are focusing on the applied technology of architecture glass. In this work, we studied the factors influencing the impact-resistance of laminated glass, and discussed the feasible measures to improve anti-impact properties of laminated glass, based on the falling ball impact test and performance requirements of GB15763.3-2009named as "Architectural Safety Glass-Part3-Laminated Glass". This thesis reviews the progress of the factors affecting safety performance and the measures enhancing safety performance of the laminated glass. The effects of film material, film thickness, the adhesion between glass and film, and special treatments in glass fabrication on the stripping property of the laminated glass are summarized.Through the application of explicit dynamics method of the ANSYS Workbench Platform, we studied the stress, strain, deformation and transformation mechanism of the laminated glass in the falling ball impact test. By using geometrically nonlinear theory and large deformation theory, we obtained a reliable numerical simulation results for the laminated glass by fully considering the effects of PVB film layer, such as the nonlinear property of PVB film via the hyperelastic theory and the viscoelastic property via Maxwell model.By classifying and analyzing a large of sets of laminated glass falling ball impact testes, followed by theoretical analysis and numerical simulation, we studied the effects of the interlayer thickness, glass thickness, glass materials, laminated glass manufacturing processes and other factors on the impact peel performance of the laminated glass falling ball. Some feasible suggestions for possible ways to improve the safety performance of the laminated glass were provided. This work has an certain significance for the quality supervision department to supervise the quality as well as for the manufacturing enterprises to promote quality.更多还原