The Cowan equation of state and thermodynamic parameters of copper and cobalt were investigated. Accordingly,the detonation parameters of BNCP(tetraamminebis(5-nitrotetrazolato)cobalt(Ⅲ)perchlorate),DACP (tetraamminediazido cobalt (Ⅲ) perchlorate) and tetraamminebis (3,5-dinitro-1,2,4-triazolato-N¹) copper (Ⅱ) were calculated by VLW code. The coefficients of the JWL equation of state were fitted using the calculated isentropic expansion data. The process of explosive-driven flyer plate was simulated by LS-DYNY program. Results show that the calculated results agree well with the experiments,and the deviations is less than 4%.