An efficient finite element modeling of composite stiffened shells
Date
2014
Authors
Sheikh, A.
Huang, L.
Editors
Steven, G.
Li, Q.
Zhang, Z.
Li, Q.
Zhang, Z.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
1st Australasian Conference on Computational Mechanics (ACCM2013) / G. P. Steven, Q. Li and Z. (Leo) Zhang (eds.), pp. 673-678
Statement of Responsibility
Sheikh Hamid and Huang Liang
Conference Name
Australasian Conference on Computational Mechanics (1st : 2013 : Sydney, N.S.W.)
Abstract
This paper presents an efficient finite element modeling technique for stiffened composite shells having different stiffening arrangements. The laminated shell skin is modeled with a triangular degenerated curved shell element having 3 comer nodes and 3 mid-side nodes. An efficient curved beam element compatible with the shell element is developed for the modeling of stiffeners which may have different lamination schemes. The formulation of the 3 nod degenerated beam element may be considered as one of the major contributions. The deformation of the beam element is completely defined in terms of the degrees of freedom of shell elements and it does not require any additional degrees of freedom. As the usual formulation of degenerated beam elements overestimates their torsional rigidity, a torsion conection factor is introduced for different lamination schemes. Numerical examples are solved by the proposed finite element technique to assess its performance.
School/Discipline
Dissertation Note
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Description
Also cited as: Applied Mechanics and Materials, 2014; 553:673-678
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© 2014 Trans Tech Publications