Dynamic Buckling of Laminated Composite Bars Subjected to Axial Impact

查看全文 作　　者：Wang, [1]DY;Chen, [1]TY;Xin, [1]GN 机构地区：[1]Shanghai Jiao Tong Univ, Sch Naval Architecture & Ocean Engn, Shanghai 200030, Peoples R China 出　　处：《China Ocean Engineering》索引1998年第13卷第2期,共8页 基　　金：The present research work was financially supported by the National Natural Science Foundation of China.(No.19472042) 摘　　要：The impact buckling of a laminated composite bar is investigated in case of one of its endsmoving due to axial impact compression.The governing equations considering the first-order sheardeformation effect are derived by the Hamilton principle and solved by the finite difference method.Thecritical axial shortness is determined by the B-R cirterion.The given example is used to highlight the in-fluences of initial imperfection,impact velocity,stress wave and coupled stiffness.It is found that theunsymmetrically laminated bar has a quite different dynamic buckling behaviour from that of thesymmetrically laminated bar. 关 键 词：IMPACT BUCKLING LAMINATED bar stress wave coupled STIFFNESS AXIAL IMPACT