Sektorski element za analizu debelih cijevi izloženih unutarnjem pritisku i promjeni temperature

Abstract

The strain-based approach for development of a sector in-plane finite element defined in the polar coordinate system is applied in the paper. The element is used for determining the plane state in elastic area. The developed element has three degrees of freedom in each node. The performance of this element was tested through analysis of thick cylinders exposed to internal pressure and change of temperature. The efficiency of the element was established, and the convergence of results for stresses and displacements of this element was shown to be faster compared to other elements.