Prethodno priopćenje
Post buckling stress state of open section cylindrical shells subjected to constrained torsion
Tomasz Kopecki
; Faculty of Mechanical Engineering and Aeronautics, Rzeszów University of Technology, ul. W. Pola 2, PL 35-959 Rzeszów, POLAND
Sažetak
The work concerns numerical and experimental studies on pre and post buckling of thin-walled steel cylindrical shells of open section subjected to constrained torsion. Two structure solutions different in geometry are considered: open section cylindrical shell without stiffeners and reinforced by closed section stringers. The shells have five various length to diameter aspect ratio. Numerical simulations were carried out and the stress distribution in neuralgic zones in pre and post buckling response was determined. Torsion experiments were performed and the results were compared to the numerical solutions with a reasonably good agreement. The exactness of experiment for the chosen
cases of considered solutions was proved by establishing the base for FEM numerical model estimation.
Ključne riječi
shell; constrained torsion; open cross-section; post buckling; finite elements
Hrčak ID:
187457
URI
Datum izdavanja:
27.1.2009.
Posjeta: 615 *