PVB夹层钢化玻璃冲击波毁伤效应实验研究

为获得爆炸冲击波对带PVB夹层钢化玻璃的超压毁伤阈值和冲量毁伤阈值，针对6 mm+1.52 mmPVB+6 mm厚带PVB夹层的钢化玻璃进行了多发外场化爆实验，对每一发实验进行了爆炸参数测试，获得了冲击波超压随时间变化历程的实验数据.通过观察和记录的实验现象，分析确定了6 mm+1.52 mmPVB+6 mm厚带PVB夹层钢化玻璃被冲击波破坏的临界状态所对应的实验发次.结合实验设计与实施条件，根据冲击波压力测试结果，得到了6 mm+1.52 mmPVB+6 mm厚带PVB夹层的钢化玻璃冲击波超压和冲量毁伤阈值的近似值.实验结果表明，在合理的安装方式下6 mm+1.52 mmPVB+6 mm厚带PVB夹层的钢化玻璃的冲击波毁伤超压阈值范围为41~55 kPa，冲量阈值范围为180~299 kP a· ms. 

Experimental Study on Explosion Shock Wave Damage Effect of Tempered Glass with PVB Interlayer

For the purpose of getting the shock wave overpressure threshold and impulse threshold of the tempered glass with a PVB (polyvinyl butyral) interlayer, some experiments of tempered glass were carried out. Several experiments were finished on the tempered glass with the thickness of 6 mm+1.52 mmPVB+6 mm. In each experiment, the blast shock wave parameter tests were performed and the experimental overpressure-time histories were recorded. By observing and recording the experimental phenomena, the experiment near the critical value of the damage threshold was determined. Therefore, combining the test results of the blast shock wave with the experimental design and experimental conditions, the shock wave overpressure threshold and impulse threshold of 6 mm+1.52 mmPVB+6 mm thickness tempered glass were obtained. Experimental results show that the overpressure threshold of the 6 mm+1.52 mm PVB+ 6 mm thickness tempered glass is between 41 and 55 kPa, and the impulse threshold is between 180 and 299 kP a·ms.