A Study of Thickness and Interlayer of Laminated Glass for Bus Affecting Pedestrian Protection
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Abstract
Nowadays, the risk of accidents between cars and pedestrians is increasing. Most of the victims were pedestrians who were hit by cars from the front. The objectives of this research are to determine the thickness of the glass and the interlayer material of laminated glass that is suitable in the case of a pedestrian collision and explore the impact resistance of the bus windshield. The test conditions are referred to Pedestrian Protection regulation (Euro NCAP) as a guideline for the test method. Head Injury Criterion (HIC) and the energy generated to the glass are considered. The 9 different thickness of the windshields were test for this research. The test results discover that the 8 mm of laminated glass thickness reinforced with 1.14 mm of interlayer material is suitable in the case of accidents at 40 km/h of impact velocity. By means of HIC15, the test result is equal to 496.25. Moreover, there are interesting test samples with similar results, 6 mm of laminated glass thickness extra reinforced with 1.14 mm of interlayer material and 10 mm of laminated glass thickness extra reinforced with 1.14 mm of interlayer material, which are the head injury criteria 558.67 and 565.98 respectively. The head injury criterion of the two samples are not significantly different.
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