Scientific paper ID 76 : 2007/1

The stiffness matrix of a double-sided fixed arc finite element of a plane circumference has been obtained in a explicit kind. The element is of six independent node parameters. The node displacements of the element in the local coordinate system have been introduced along the chord and the perpendicular towards it. The element modeled has been applied to solve a fixed arc, semi-circumference. The results obtained have been compared to the results of the salutation of the arc by inscribing a polygonal frame in it. Deductions and conclusions have been drawn.