对称与非对称钢化夹层玻璃的抗冲击性能

姚芬; 张英杰; 姚蓬飞; 韩阳; 李志强

doi:10.11858/gywlxb.20190861

对称与非对称钢化夹层玻璃的抗冲击性能

doi: 10.11858/gywlxb.20190861

姚芬^1,,
张英杰¹,
姚蓬飞¹,
韩阳¹,
李志强^{1, 2, 3,*, ,}

1.
太原理工大学机械与运载工程学院应用力学研究所，山西太原　030024
2.
太原理工大学材料强度与结构冲击山西省重点实验室，山西太原　030024
3.
太原理工大学力学国家级实验教学示范中心，山西太原　030024

基金项目: 国家自然科学基金（11672199）；山西省自然科学基础研究项目（201601D011011）

详细信息

作者简介:
姚芬（1995－），女，硕士研究生，主要从事冲击动力学研究. E-mail：yaofen4429@163.com

通讯作者:
李志强（1973－），男，教授，主要从事冲击动力学和计算力学研究. E-mail：lizhiqiang@tyut.edu.cn

中图分类号: O347
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出版历程
- 收稿日期: 2019-12-06
- 修回日期: 2020-01-12

Impact Resistance of Symmetrical and Asymmetric Tempered Laminated Glass

YAO Fen^1
,,
ZHANG Yingjie¹,
YAO Pengfei¹,
HAN Yang¹,
LI Zhiqiang^{1, 2, 3,*
, ,}

1.
Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
2.
Shanxi Key Laboratory of Material Strength & Structural Impact, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
3.
National Demonstration Center for Experimental Mechanics Education (Taiyuan University of Technology), Taiyuan 030024, Shanxi, China

摘要

摘要: 钢化夹层玻璃的透光性好、安全性能高，广泛应用于汽车、高层建筑等领域。为了研究不同玻璃厚度分布钢化夹层玻璃的抗冲击性能，进行了9种PVB钢化夹层玻璃的落锤冲击实验，分析未破裂状态和破裂状态下钢化夹层玻璃的冲击力、应变和位移随时间的变化规律。同时，利用高速摄像机记录裂纹的产生和扩展情况，分析破裂状态下夹层玻璃的裂纹分布形态。结果表明：钢化夹层玻璃的抗冲击性能与玻璃层数、厚度分布密切相关。双层钢化夹层玻璃中，外层玻璃越厚，内层玻璃越薄，抗冲击性能越好；三层钢化夹层玻璃中，外层玻璃越薄，内层玻璃越厚，抗冲击性能越好。
- PVB夹层玻璃 /
- 落锤冲击实验 /
- 裂纹分布 /
- 抗冲击性能
Abstract: Due to good light transmittance and great safety performance, tempered laminated glass has been widely used in automobiles, high-rise buildings and other fields. To explore the effect of glass thickness distribution on the impact resistance of tempered laminated glass, the drop hammer impact tests were performed on nine kinds of PVB tempered laminated glass, and the changes of impact force, strain and displacement of the tempered laminated glass with time were obtained under unfracture state and fracture state. Meanwhile, high-speed cameras were used to record the generation and expansion of cracks, and the crack distributions of the laminated glass were analyzed under the fracture state. The results show that the impact resistance is closely related to the number of layers and the thickness distribution of tempered laminated glass. For double-layer tempered laminated glass, when the outer glass is thicker and the inner glass is thinner, the impact resistance is better. For the three-layer tempered laminated glass, when the outer glass is thinner and the inner glass is thicker, the impact resistance is better.
- PVB laminated glass /
- drop hammer impact test /
- crack distribution /
- impact resistance

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图 1 夹层玻璃冲击实验系统

Figure 1. Impact test system for laminated glass

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图 2 应变片粘贴位置

Figure 2. Locations of strain gauges

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图 3 实验与模拟的冲击力时程曲线对比

Figure 3. Comparison of impact-time curves obtained from the experiment and simulation

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图 4 不同厚度钢化夹层玻璃的冲击力时程曲线

Figure 4. Impact-time curves of tempered laminated glass with different thicknesses

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图 5 钢化夹层玻璃的位移时程曲线

Figure 5. Displacement-time curves of tempered laminated glass

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图 6 未破裂时钢化夹层玻璃的能量位移曲线

Figure 6. Energy-deformation curves of tempered laminated glass at fracture state

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图 7 破裂时钢化夹层玻璃的冲击力时程曲线

Figure 7. Impact-time curves of tempered laminated glass at fracture state

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图 8 试件G1各测点的应变时程曲线

Figure 8. Strain-time curves of each measuring point of test piece G1

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图 9 G1试件的裂纹随时间演化过程

Figure 9. Time evolution of cracks in the specimen G1

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图 10 9种玻璃的最终裂纹分布形态

Figure 10. Final crack distributions of 9 types of glass

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表 1 实验试样

Table 1. Experimental specimens

No.	Total thickness/mm	Structure	Thickness/mm	Quantity of glass layer/piece
G1	20.76		8/0.76/12
G2		G/PVB/G	10/0.76/10	2
G3			12/0.76/8
G4	24.76		6/0.38/8/0.38/10
G5		G/PVB/G/PVB/G	8/0.38/8/0.38/8	3
G6			10/0.38/8/0.38/6
G7	30.76		8/0.38/10/0.38/12
G8		G/PVB/G/PVB/G	10/0.38/10/0.38/10	3
G9			12/0.38/10/0.38/8

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表 2 落锤冲击实验的实验结果

Table 2. Experimental results from drop hammer impact test

No.	Drop height/mm	Impact energy/J	Peak impact force/kN	Fracture mode
G1	650	114.802	63.51	Inner and outer glass fracture
G2	700	123.632	73.62	Inner glass fracture
G3	800	141.294	85.54	Inner glass fracture
G4	900	158.960	114.25	Inner glass fracture
G5	850	150.125	95.03	Inner glass fracture
G6	850	150.125	89.12	Inner and outer glass fracture
G7	850	150.125	142.93	Inner glass fracture
G8	650	114.802	124.36	Inner glass fracture
G9	600	105.970	103.24	Inner glass fracture

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表 3 外层玻璃的最大拉应变和内层玻璃的最大压应变

Table 3. Maximum tensile strains of the outer glass and maximum compressive strain of the inner glass

No.	Test point	Strain/10⁻⁴	Glassy layer	No.	Test point	Strain/10⁻⁴	Glassy layer
	1	2.14			4	−1.90
G1	2	2.24		G1	5	−2.09
	3	2.38			6	−2.00
	1	2.17			4	−2.08
G2	2	1.91	Outer glass	G2	5	−1.94	Inner glass
	3	1.85			6	−2.03
	1	2.13			4	−1.90
G3	2	2.24		G3	5	−2.10
	3	2.39			6	−2.00

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