Comparison of Structural Analysis of Thin-Walled Structures Accomplished by Isogeometric Analysis and the Finite Element Method

• Published in: Materials Vol. 15; no. 19; p. 6516
• Main Authors: Bocko, Jozef, Pleško, Patrik, Delyová, Ingrid, Sivák, Peter
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 20-09-2022; MDPI
• Subjects: Analysis; B spline functions; Basis functions; Boundary conditions; Finite element analysis; Finite element method; Geometry; Methods; Simulation; Structural analysis; Structural members; Thin wall structures; Slovakia
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma15196516

Isogeometric analysis (IGA) represents a relatively new method of problem-solving in engineering practice. A huge advantage of this method over the finite element method (FEM), is the reduction of the simulation execution time. Non-uniform rational B-splines (NURBS) allow the use of higher-order basis functions, thus increasing the accuracy of the solution. This paper deals with the comparison of structural analysis of thin-walled structural elements using isogeometric analysis and the finite element method. The investigated objects are modelled using a single patch in MATLAB. The basic functions are created from NURBS, which were previously used in the creation of an accurate geometric model. The paper contains a comparison of the results obtained by the above-mentioned methods. All computations are performed in the elastic domain.