Köbler, Jonathan ; Magino, Nicola ; Andrä, Heiko ; Welschinger, Fabian ; Müller, Ralf ; Schneider, Matti (2021)
A computational multi-scale model for the stiffness degradation of short-fiber reinforced plastics subjected to fatigue loading.
In: Computer Methods in Applied Mechanics and Engineering, 373
doi: 10.1016/j.cma.2020.113522
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this work, we investigate a model for the anisotropic and loading-direction dependent stiffness degradation of short-fiber reinforced thermoplastics subjected to high-cycle fatigue loading. Based upon the variational setting of generalized standard materials, we model the stiffness degradation of the matrix in cycle space by a simple isotropic fatigue-damage model with minimum number of model parameters, and consider the fibers to be linear elastic. The stiffness degradation upon cyclic loading is determined, for fixed damage state, by standard linear elastic homogenization. We thoroughly investigate the influence of the involved numerical and material parameters on the effective stiffness degradation of short-fiber reinforced volume elements, and also pay close attention on the dependence on geometric parameters of the composite like fiber-volume fraction and the fiber-orientation state.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Köbler, Jonathan ; Magino, Nicola ; Andrä, Heiko ; Welschinger, Fabian ; Müller, Ralf ; Schneider, Matti |
| Art des Eintrags: | Bibliographie |
| Titel: | A computational multi-scale model for the stiffness degradation of short-fiber reinforced plastics subjected to fatigue loading |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2021 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Computer Methods in Applied Mechanics and Engineering |
| Jahrgang/Volume einer Zeitschrift: | 373 |
| DOI: | 10.1016/j.cma.2020.113522 |
| URL / URN: | https://linkinghub.elsevier.com/retrieve/pii/S00457825203070... |
| Kurzbeschreibung (Abstract): | In this work, we investigate a model for the anisotropic and loading-direction dependent stiffness degradation of short-fiber reinforced thermoplastics subjected to high-cycle fatigue loading. Based upon the variational setting of generalized standard materials, we model the stiffness degradation of the matrix in cycle space by a simple isotropic fatigue-damage model with minimum number of model parameters, and consider the fibers to be linear elastic. The stiffness degradation upon cyclic loading is determined, for fixed damage state, by standard linear elastic homogenization. We thoroughly investigate the influence of the involved numerical and material parameters on the effective stiffness degradation of short-fiber reinforced volume elements, and also pay close attention on the dependence on geometric parameters of the composite like fiber-volume fraction and the fiber-orientation state. |
| ID-Nummer: | 113522 |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik > Fachgebiet Kontinuumsmechanik |
| Hinterlegungsdatum: | 04 Mai 2022 11:26 |
| Letzte Änderung: | 04 Mai 2022 11:26 |
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