Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74002
Title: A simplified co-rotational method for quadrilateral shell elements in geometrically nonlinear analysis
Authors: Tang, YQ 
Zhou, ZH 
Chan, SL 
Keywords: Drilling degree of freedom
Element-independent co-rotational formulation
Explicit geometrical stiffness matrix
Geometrically nonlinear
Quadrilateral shell element
Warping
Issue Date: 2017
Publisher: John Wiley & Sons
Source: International journal for numerical methods in engineering, 2017, p. 2 How to cite?
Journal: International journal for numerical methods in engineering 
Abstract: This paper presents a simplified co-rotational formulation for quadrilateral shell elements inheriting the merit of element-independence from the traditional co-rotational approach in literature. With the objective of application to nonlinear analysis of civil engineering structures, the authors further simplify the formulation of the geometrical stiffness using the small strain assumption, which is valid in the co-rotational approach, with the warping effects considered as eccentricities. Compared with the traditional element-independent co-rotational method, the projector is neglected both in the tangent stiffness matrix and in the internal force vector for simplicity in formulation. Meanwhile, a quadrilateral flat shell element allowing for drilling rotations is adopted and incorporated into this simplified co-rotational algorithm for geometrically nonlinear analysis involved with large displacements and large rotations. Several benchmark problems are presented to confirm the efficiency and accuracy of the proposed method for practical applications.
URI: http://hdl.handle.net/10397/74002
ISSN: 0029-5981
EISSN: 1097-0207
DOI: 10.1002/nme.5567
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