Journal of Theoretical
and Applied Mechanics
41, 3, pp. 443-457, Warsaw 2003
and Applied Mechanics
41, 3, pp. 443-457, Warsaw 2003
Elasto-plastic limit loads of cylinder-cone configurations
The paper presents a procedure for computation of the limit loads of imperfection-sensitive shells including plastic deformations. On the basis of strain energy of shells, the worst case scenario for critical perturbations at fixed load levels is investigated. Limit loads of cylindrical and conical shells under combined actions are compared to European design rules. The concept is applied to more general buckling cases of combined shell structures.
Keywords: stability; buckling; imperfection sensitivity; perturbation; plasticity