Buch: On the anisotropic plastic behaviour of short fibre reinforced thermoplastics and its description by phenomenological ma
On the anisotropic plastic behaviour of short fibre reinforced thermoplastics and its description by phenomenological ma
1st ed. 2020
2019, xix, 227  S., 20 SW-Abb., 56 Farbabb. 240 mm, Softcover
Sprache: Englisch
Springer, Berlin
ISBN 978-3-658-28198-4

Inhalt
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.

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