Blast and impact loading paper
Zhang, X, Hao, H 2014, 'Full-scale tests of laminated glass windows subjected to blast loads', in ST Smith (ed.), 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), vol. II, Byron Bay, NSW, 9-12 December, Southern Cross University, Lismore, NSW, pp. 1025-1030. ISBN: 9780994152008.
Laminated glass panes are widely used for glazing windows to mitigate the hazard from ejecting glass fragments due to blast loads. In the common design analysis of structural responses to blast load, the glass windows are simplified as a single degree of freedom (SDOF) system. Popularly used design guides such as UFC and ASTM also suggest an equivalent SDOF analysis or equivalent static analysis. The accuracy of such simplified analyses has been continuously under debating. Recently, much effort has been directed towards understanding of the dynamic behaviour of glass material and interlayer polymer such as polyvinyl butyral (PVB). With the more sophisticated dynamic material properties, some numerical models of laminated glass have been developed to give more comprehensive and supposedly better predictions of glass structure performance under blast loading. In the current study, full-scale field blast tests were conducted to investigate the response of laminated glass windows to blast loadings. The test data are used to evaluate the accuracy of the available analysis and design methods in predicting the glass window responses. 1.5m ⅹ 1.2m laminated glass panels with different glass and interlayer thicknesses were tested. Glass pane deflections were monitored by mechanical linear variable displacement transducers (LVDT) and high-speed cameras. The responses of the tested windows are compared with the estimation of SDOF models and design standards. The reliability of these design analysis approaches is examined.