Abstract
The goal of this contribution is to extend an existing workflow for shape optimization with geometrically parameterized finite elements by implementing a parameterized shell element. The challenge is to find an element technology that is free of locking and hourglass-modes on the one hand, but its implementation must be simple enough so that it can contain the geometric parameters on the other hand. The derived element is used in a numerical optimization example. Therefore, a ribbed plate is used to show the whole workflow including the preparation of the system matrices depending on global design parameters, parametric model order reduction and shape optimization. A final validation is done using a commercial finite element software to compare the results.
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Acknowledgements
This project is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 279064222 - SFB 1244, “Adaptive skins and structures for the built environment of tomorrow” with the project B01 (Characterization, modeling and model order reduction). This support is highly appreciated.
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Vierneisel, M., Geiger, F., Bischoff, M., Eberhard, P. (2024). Derivation of Geometrically Parameterized Shell Elements in the Context of Shape Optimization. In: Nachbagauer, K., Held, A. (eds) Optimal Design and Control of Multibody Systems. IUTAM 2022. IUTAM Bookseries, vol 42. Springer, Cham. https://doi.org/10.1007/978-3-031-50000-8_6
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DOI: https://doi.org/10.1007/978-3-031-50000-8_6
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