论文信息 - On the imperfection sensitivity of complete spherical shells

On the imperfection sensitivity of complete spherical shells

The imperfection sensitivity of elastic complete spherical shells under external pressure is studied for axisymmetric deformations and qualitatively different types of imperfections by means of a numerical analysis of the Reissner shell equations. It is shown that strong reductions of the critical load are obtained for small deviations of the middle surface of the shell from the perfect spherical configuration whereas imperfections of the shell thickness do not have a substantial influence on the critical load.

[1] U. Ascher,et al. A collocation solver for mixed order systems of boundary value problems , 1979 .

[2] L. Berke,et al. Experimental studies of the postbuckling behavior of complete spherical shells , 1968 .

[3] Ewa Weinmüller,et al. Collocation for singular boundary value problems of second order , 1986 .

[4] Irene A. Stegun,et al. Handbook of Mathematical Functions. , 1966 .

[5] Ewa Weinmüller,et al. An investigation of the complete post-buckling behavior of axisymmetric spherical shells , 1985 .

[6] Shui-Nee Chow,et al. Applications of generic bifurcation. II , 1975 .

[7] G. Knightly,et al. Buckled states of a spherical shell under uniform external pressure , 1980 .

[8] The axisymmetric branching behavior of complete spherical shells , 1981 .

[9] Ewa Weinmüller,et al. A difference method for a singular boundary value problem of second order , 1984 .