On the anisotropic plastic behaviour of short fibre reinforced thermoplastics and its description by phenomenological material modelling / Mechanik, Werkstoffe und Konstruktion im Bauwesen Bd.53 (PDF)
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This work introduces a material modelling approach for explicit finite element simulations of injection moulded short fibre reinforced thermoplastics. The material model considers linear-elastic behaviour and non-linear orthotropic stress-state dependent viscoplastic deformation for arbitrary fibre distributions. Regarding elasticity and the initial yield surface, a micro-mechanical Mori-Tanaka based approach is applied. On the matrix level an isotropic quadratic yield surface is introduced which is transferred into a Tsai-Wu yield surface on the composite level. An analytical expression for non-linear hardening and a simplified consideration of strain rate dependency is presented. The constitutive equations were verified with the experiments of a self-compounded PPGF30 material regarding regarding tension, compression and shear at different orientation distributions.
- Autor: Felix Dillenberger
- 2019, 1st ed. 2020, 227 Seiten, Englisch
- Verlag: Springer-Verlag GmbH
- ISBN-10: 3658281995
- ISBN-13: 9783658281991
- Erscheinungsdatum: 21.10.2019
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- Größe: 9.85 MB
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