Abstract
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.
Degree
MS
College and Department
Ira A. Fulton College of Engineering and Technology; Civil and Environmental Engineering
Rights
http://lib.byu.edu/about/copyright/
BYU ScholarsArchive Citation
Richardson, Kyle Dennis, "Blending and Mixed Variational Principles to Overcome Locking Phenomena in Isogeometric Beams" (2017). Theses and Dissertations. 6495.
https://scholarsarchive.byu.edu/etd/6495
Date Submitted
2017-07-01
Document Type
Thesis
Handle
http://hdl.lib.byu.edu/1877/etd9440
Keywords
Isogeometric Analysis, IGA, locking free, blended, Timoshenko, Bernoulli, beams, linear analysis, Hu-Washizu, mixed variational
Language
english