Application of the generalized conforming flat shell element to geometrical nonlinear analysis for composite stiffened shell structures. (English) Zbl 0948.74070
Summary: This paper proves the generalized compatibility of the boundary displacement pattern of the generalized conforming flat shell element with drilling degrees of freedom (DOFs) and the central line displacement pattern of the beam element with Hermite interpolation. According to the incremental equation of virtual work of the three-dimensional (3D) continuum, the updated Lagrangian formulations of the 3D beam elements and generalized conforming flat shell elements with drilling DOFs are used for geometrical nonlinear analysis of composite stiffened shell structures. Here the concentric stiffener is assumed to be isotropic. A number of numerical examples demonstrate the effectiveness of the proposed approach.
MSC:
| 74S05 | Finite element methods applied to problems in solid mechanics |
| 74K25 | Shells |
| 74E30 | Composite and mixture properties |
Keywords:
updated Lagrangian formulation; generalized conforming flat shell element; drilling degrees of freedom; central line displacement pattern; beam element; Hermite interpolation; equation of virtual work; concentric stiffenerReferences:
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