Wind borne debris

[45] VARIATION OF BREAKAGE CHARACTERISTICS OF GLASS WITH DIFFERENT MISSILES

○Takashi Maruyama¹, Masayuki SHIMURA², Toshikazu OSAFUNE³ (1.Disaster Prevention Research Institute, Kyoto University, 2.Civil Engineering & Eco-technology Consultants, 3.Nippon Expressway Research Institute Co., Ltd., Japan)

Keywords:Impact resistant test, Impact strength, Missile, Glass

Viscoelastic damper dissipates energy through shear deformation of the viscoelastic material, and it causes temperature rise resulting softening of the material under long duration loading. This paper discusses properties of a full-scale viscoelastic damper during long duration wind-induced vibration and presents the simplified evaluation method. In addition, we propose a new analytical model which is considering heat transfer effects. Good accuracies of this analytical model is demonstrated by comparing with results of the long duration loading test.