Experimental Study of Glass Strength against Shock Wave Loading

--Stress Generation of Float Glass Plates--

Abstract

Stress generation by shock wave on a 300mm×300mm float glass specimen was investigated. Stresses in float glass plate increased to a maximum value impulsively, and decayed accompanied by a periodical oscillatory pattern. The stress values σ so far generated can be written in the following form of time t and thickness d using 4 parameters, σ(t, d*)=C_dsinωt·exp{-λ(t-π/2ω)}+C_s. In these 4 parameters, C_d and C_s are shown as a factor of Mach number by normalizing with glass thickness, and λ and ω are dependent on glass thickness.