TY - JOUR
T1 - Buckling and postbuckling of anisotropic laminated cylindrical shells under combined axial compression and torsion
AU - Shen, Hui-Shen
AU - Xiang, Y.
PY - 2008
Y1 - 2008
N2 - A postbuckling analysis is presented for an anisotropic laminated cylindrical shell of finite length subjected to combined loading of axial compression and torsion. The governing equations are based on classical shell theory with von Kármán-Donnell-type of kinematic nonlinearity and including the extension-twist, extension-flexural and flexural-twist couplings. The nonlinear prebuckling deformations and initial geometric imperfections of the shell are both taken into account. A singular perturbation technique is employed to determine interactive buckling loads and postbuckling equilibrium paths. The numerical illustrations concern the postbuckling response of perfect and imperfect, anisotropic laminated cylindrical shells for different values of load-proportional parameters. The results show that the postbuckling characteristics depend significantly upon the load-proportional parameter. The results reveal that in combined loading cases the postbuckling equilibrium path is unstable and the shell structure is imperfection-sensitive.
AB - A postbuckling analysis is presented for an anisotropic laminated cylindrical shell of finite length subjected to combined loading of axial compression and torsion. The governing equations are based on classical shell theory with von Kármán-Donnell-type of kinematic nonlinearity and including the extension-twist, extension-flexural and flexural-twist couplings. The nonlinear prebuckling deformations and initial geometric imperfections of the shell are both taken into account. A singular perturbation technique is employed to determine interactive buckling loads and postbuckling equilibrium paths. The numerical illustrations concern the postbuckling response of perfect and imperfect, anisotropic laminated cylindrical shells for different values of load-proportional parameters. The results show that the postbuckling characteristics depend significantly upon the load-proportional parameter. The results reveal that in combined loading cases the postbuckling equilibrium path is unstable and the shell structure is imperfection-sensitive.
UR - http://handle.uws.edu.au:8081/1959.7/553656
U2 - 10.1016/j.compstruct.2007.10.002
DO - 10.1016/j.compstruct.2007.10.002
M3 - Article
SN - 0263-8223
VL - 84
SP - 375
EP - 386
JO - Composite Structures
JF - Composite Structures
IS - 4
ER -