Two methods for overcoming locking phenomena in isogeometric beams are presented. The first method blends the rotation of a Timoshenko beam with the rotation of a Bernoulli beam to produce realistic displacements in straight beams. The second method uses mixed variational principles, specifically the Hu-Washizu Principle, to produce realistic displacements as well as realistic strains without post-processing.
College and Department
Ira A. Fulton College of Engineering and Technology; Civil and Environmental Engineering
BYU ScholarsArchive Citation
Richardson, Kyle Dennis, "Blending and Mixed Variational Principles to Overcome Locking Phenomena in Isogeometric Beams" (2017). All Theses and Dissertations. 6495.
Isogeometric Analysis, IGA, locking free, blended, Timoshenko, Bernoulli, beams, linear analysis, Hu-Washizu, mixed variational