抄録
Laminated glass is used as the front glass of vehicles and window glass of buildings. Comparing with general glasses, it is difficult to be penetrated, even if the glass is broken. In this study, we focus on the crime prevention laminated glass used for the window glass of buildings. We have changed tensile strength and adhesive strength of the laminated glass and clarified how these strengths can affect the fracture behavior of the laminated glass by discrete element method (DEM). Next, we have optimized the strengths and considered about good condition of the laminated glass based on response surface methodology. The tensile and adhesive strengths were selected as design variables, and maximum distance of the striker was selected as objective function. It was found that when the tensile strength becomes bigger and the adhesive strength becomes smaller, it is difficult to be fractured. However too small adhesive strength can cause detachment. From the results of optimization, the best condition of the tensile and adhesive strengths in the laminated glass could be clarified.
