Autor(en): | Guhr, Fabian Barthold, Franz-Joseph |
Titel: | Geometric and material sensitivities for elasto-plasticity including non-local damage regularisation |
Sprache (ISO): | en |
Zusammenfassung: | Sensitivity analysis is applied to a regularised non-local ductile damage model. A variational approach is utilised to derive the analytical gradients of different objectives with respect to either geometrical of material parameters. Due to the definition of the material model, enhanced algorithmic treatments are necessary to capture its history dependent nature within the sensitivity computation. The gradient information with respect to the geometrical parameters are used to derive damage tolerant geometries in shape optimisation using Sequential Quadratic Programming (SQP). The sensitivities with respect to the material parameters are used to analyse the response and impact of certain material parameters of the model during loading and unloading of a specimen. |
URI: | http://hdl.handle.net/2003/42147 http://dx.doi.org/10.17877/DE290R-23980 |
Erscheinungsdatum: | 2023-05-31 |
Rechte (Link): | https://creativecommons.org/licenses/by/4.0/ |
Enthalten in den Sammlungen: | Lehrstuhl Baumechanik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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Proc Appl Math and Mech - 2023 - Guhr - Geometric and material sensitivities for elasto‐plasticity including non‐local.pdf | DNB | 1.37 MB | Adobe PDF | Öffnen/Anzeigen |
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