Structural Engineering and Mechanics
Volume 24, Number 5, 2006, pages 621-639
DOI: 10.12989/sem.2006.24.5.621
Elasto-plastic stability of circular cylindrical shells subjected to axial load, varying as a power function of time
A. H. Sofiyev, E. Schnack and F. Demir
Abstract
Stability of a cylindrical shell subject to a uniform axial compression, which is a power function of time, is examined within the framework of small strain elasto-plasticity. The material of the shell is incompressible and the effect of the elastic unloading is considered. Initially, employing the infinitesimal elastic-plastic deformation theory, the fundamental relations and Donnell type stability equations for a cylindrical shell have been obtained. Then, employing Galerkin
Key Words
elasto-plastic stability; cylindrical shell; time dependent compressive axial load; critical parameters.
Address
A. H. Sofiyev; Department of Civil Engineering, Suleyman Demirel University, Isparta, Turkey<br />E. Schnack; Institute of Solid Mechanics, Karlsruhe University, Karlsruhe, Germany<br />F. Demir; Department of Civil Engineering, Suleyman Demirel University, Isparta, Turkey