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Study of warping torsion of thin‐walled beams with open cross‐section using macro‐elements
Author(s) -
Musat Sorin D.,
Epureanu Bogdan I.
Publication year - 1999
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19990228)44:6<853::aid-nme534>3.0.co;2-p
Subject(s) - image warping , torsion (gastropod) , macro , structural engineering , cross section (physics) , geometry , mathematics , computer science , physics , engineering , artificial intelligence , programming language , medicine , surgery , quantum mechanics
Thin‐walled beams with open cross‐section under torsion or complex load are studied based on the hypotheses of the classical theory (Vlasov). Different from previous techniques presented in the literature, the concept of a strip‐plate is introduced. This concept is used to accurately model the effect of bending induced by torsion and to define an alternate finite element called macro‐element. The macro‐elements are shown to model more accurately the thin‐walled beams under warping torsion or complex load therefore giving better results than the classical theory. Copyright © 1999 John Wiley & Sons, Ltd.