This paper discusses the formulation and implementation of a 4-node C0 shell element within a general-purpose multibody formulation. A geometrically consistent set of strains and curvatures, defined in a co-rotational framework, is augmented by Enhanced Assumed Strains (EAS) and Assumed Natural Strains (ANS), to alleviate shear and membrane locking. The shell element formulation is validated by solving several static and dynamic problems from the open literature. The proposed element has been successfully used for the coupled structural and fluiddynamics analysis of flapping wing micro-aerial vehicles.

Implementation and Validation of a 4-Node Shell Finite Element

MORANDINI, MARCO;MASARATI, PIERANGELO
2014-01-01

Abstract

This paper discusses the formulation and implementation of a 4-node C0 shell element within a general-purpose multibody formulation. A geometrically consistent set of strains and curvatures, defined in a co-rotational framework, is augmented by Enhanced Assumed Strains (EAS) and Assumed Natural Strains (ANS), to alleviate shear and membrane locking. The shell element formulation is validated by solving several static and dynamic problems from the open literature. The proposed element has been successfully used for the coupled structural and fluiddynamics analysis of flapping wing micro-aerial vehicles.
ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Vol. 6: 10th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
978-0-7918-4639-1
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/844546
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