Mechanics

W-R Method for Blast Resistance Design of Laminated Glass

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  • School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
张红(1967-),女,博士,副教授. 主要从事复合材料及其结构力学和冲击动力学研究.

Received date: 2015-04-10

  Revised date: 2015-06-24

  Online published: 2015-10-01

Supported by

 Supported by the National Natural Science Foundation of China(11372113)

Abstract

 he blast resistance design of laminated glass helps to reduce the personal injury caused by explosive
blast. The traditional blast resistance design with p-i diagram,where p is overpressure and i is positive impulse per unit area,does not take into consideration the effect of negative phase of blast. However,the negative phase can significantly affect the dynamic response of laminated glass. In order to solve this problem,the effect of the negative phase of blast on the p-i diagram is simulated by means of the finite element method. Aiming at the deficiency of the p-i diagram design method for blast resistance,a design method named W-R method,where W refers to explosive equivalent and R refers to explosion distance,is developed for blast resistance. In comparison with the p-i diagram design method,the W-R design method is more feasible for the blast resistance design because the W-R diagram has a simpler form and is more regular and more intuitional. Furthermore,the effects of the geometric parameters of laminated glass on its impact resistance are qualitatively analyzed,and by taking the critical damage of laminated glass as the benchmark,an empirical W-R formula is fitted to evaluate the blast resistance of laminated glass,which can provide guidance for the blast resistance design of laminated glass.

Cite this article

Zhang Hong Deng Han-guo Yao Xiao-hu Long Qian . W-R Method for Blast Resistance Design of Laminated Glass[J]. Journal of South China University of Technology(Natural Science), 2015 , 43(11) : 119 -126 . DOI: 10.3969/j.issn.1000-565X.2015.11.017

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