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|Title:||An efficient finite element modeling of composite stiffened shells|
|Citation:||1st Australasian Conference on Computational Mechanics (ACCM2013) / G. P. Steven, Q. Li and Z. (Leo) Zhang (eds.), pp. 673-678|
|Publisher:||Trans Tech Publications Inc|
|Conference Name:||Australasian Conference on Computational Mechanics (1st : 2013 : Sydney, N.S.W.)|
|Sheikh Hamid and Huang Liang|
|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.|
|Keywords:||Shell; stiffener; composite laminate; finite element; structural response.|
|Description:||Also cited as: Applied Mechanics and Materials, 2014; 553:673-678|
|Rights:||© 2014 Trans Tech Publications|
|Appears in Collections:||Civil and Environmental Engineering publications|
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