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Simple and extensible plate and shell finite element models through automatic code generation tools

Abstract : A large number of advanced finite element shell formulations have been developed, but their adoption is hindered by complexities of transforming mathematical formulations into computer code. Furthermore, it is often not straightforward to adapt existing implementations to emerging frontier problems in thin structural mechanics including nonlinear material behaviour, complex microstructures, multi-physical couplings, or active materials. We show that by using a high-level mathematical modelling strategy and automatic code generation tools, a wide range of advanced plate and shell finite element models can be generated easily and efficiently, including: the linear and non-linear geometrically exact Naghdi shell models, the Marguerre-von Karman shallow shell model, and the Reissner-Mindlin plate model. To solve shear and membrane-locking issues, we use: a novel re-interpretation of the Mixed Interpolation of Tensorial Component (MITC) procedure as a mixed-hybridisable finite element method, and a high polynomial order Partial Selective Reduced Integration (PSRI) method. The effectiveness of these approaches and the ease of writing solvers is illustrated through a large set of verification tests and demo codes, collected in an open-source library, FEniCS-Shells, that extends the FEniCS Project finite element problem solving environment.
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https://hal.sorbonne-universite.fr/hal-01763370
Contributor : Corrado Maurini Connect in order to contact the contributor
Submitted on : Thursday, May 3, 2018 - 1:49:15 PM
Last modification on : Wednesday, November 17, 2021 - 7:24:03 PM

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  • HAL Id : hal-01763370, version 2

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Jack Hale, Matteo Brunetti, Stéphane Bordas, Corrado Maurini. Simple and extensible plate and shell finite element models through automatic code generation tools. Computers and Structures, Elsevier, 2018, 209, pp.163-181. ⟨hal-01763370v2⟩

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