Comparison of Isogeometric Method and Finite Element Analysis on Beams Over Elastic Foundations Based on UI Approach

Kiuntoro Hongsen


Abstract—The UI-beam theory is a new thesis within the finite element method (FEM) and a modification of the Timoshenko beam. Isogeometric method is a development of FEM itself that uses B-spline function to replace the shape function in FEM. The capability of the isogeometric method to produce a perfect geometry curvature using only a few elements is its advantage. This study focuses on a single variable beam on the elastic foundation case which, later on, presents a comparison between FEM and the isogeometric method to obtain an exact solution.

Keywords—UI-Beam, Isogeometric, B-Splines, Beam on Elastic Foundation, Single Variable

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