Finite element analysis of tempered glass with safety film subjected to blast loading

Abstract

Explosions from the past to the present have resulted in the loss of property and lives. More dangerous if the blasting area has glass. Government buildings in Oslo, Norway suffered glass damage because of an explosion, however, no dangerous glass fragments were present because the safety film was installed there. This research presents finite element analysis of tempered glass with safety film subjected to blast loading. To predict the behavior of tempered glass and be able to simulate the behavior of tempered glass with safety film. The research first develops the finite element model of tempered glass to determine the effect of uniform loading and blast loading. The results were validated by the previous experimental test. Then, the researcher developed the finite element model of tempered glass with safety film based on the case study. Starting from the explosion distance of 1 m, 2 m and 4 m using TNT explosive weighing starting at 1 kg and increasing the blast until the safety film is breaking. To determine the maximum strength of safety film. The results showed that at a standoff distance 2 m, safety film breaks when TNT explosive weighing is 2 kg and at a standoff distance 4 m safety film breaks when TNT explosive weighing to 6 kg with a deflection at the center of glass about 140 mm.