Details
| Original language | English |
|---|---|
| Publication status | Published - 2015 |
| Event | 20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark Duration: 19 Jul 2015 → 24 Jul 2015 |
Conference
| Conference | 20th International Conference on Composite Materials, ICCM 2015 |
|---|---|
| Country/Territory | Denmark |
| City | Copenhagen |
| Period | 19 Jul 2015 → 24 Jul 2015 |
Abstract
This paper is concerned with the development of a new coupled thermomechanical invariant-based transversely-isotropic elastic-plastic constitutive model for short fibre reinforced composites. The invariant-based character of the developed model under multiaxial loading conditions allows the incorporation of the direction-dependent response of short fibre composites that result from the employed injection molding process. The nonlinear behavior of such composites is regarded using an anisotropic yield surface and non-associative plastic potential functions. From the computational standpoint, this novel coupled thermo-mechanical formulation is incorporated into the FE code FEAP through the user subroutine UEL, i.e. the constitutive model is integrated within a user-defined element. Finally, the model is examined by means of a simple benchmark test that shows the potential capabilities of the present formulation. This application is focused on the short fiber reinforced thermoplastic PA6GF30 that is typically used in a wide set of engineering applications, especially in car bodies and aeronautical constructions.
Keywords
- Finite element method (FEM), Short fiber reinforced thermoplastics, Thermo-mechanical coupling, Transversely isotropic thermo-plasticity
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
- Materials Science(all)
- Ceramics and Composites
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2015. Paper presented at 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Denmark.
Research output: Contribution to conference › Paper › Research › peer review
}
TY - CONF
T1 - An invariant-based anisotropic thermo-plastic material model for short fiber reinforced thermoplastics
AU - Dean, A.
AU - Reinoso, J.
AU - Sahraee, S.
AU - Rolfes, R.
N1 - Funding Information: This paper is dedicated to Dr. Abdlatif Dean and Mrs. Dean for their unfailing support and sound advice. Many thanks also go to Dr.-Ing. Matthias Vogler for his helpful comments and discussion. RR and AD would like to acknowledge the German Research Foundation (DFG) for the financial support through the priority program 164 „joining by plastic deformation‟ with contract No. RO 706/6-1. JR gratefully acknowledges the support of the Spanish Ministry of Economy and Competitiveness (DPI2012-37187) and Andalusian Government (Project of Exc. No. TEP-7093). Publisher Copyright: © 2015 International Committee on Composite Materials. All rights reserved.
PY - 2015
Y1 - 2015
N2 - This paper is concerned with the development of a new coupled thermomechanical invariant-based transversely-isotropic elastic-plastic constitutive model for short fibre reinforced composites. The invariant-based character of the developed model under multiaxial loading conditions allows the incorporation of the direction-dependent response of short fibre composites that result from the employed injection molding process. The nonlinear behavior of such composites is regarded using an anisotropic yield surface and non-associative plastic potential functions. From the computational standpoint, this novel coupled thermo-mechanical formulation is incorporated into the FE code FEAP through the user subroutine UEL, i.e. the constitutive model is integrated within a user-defined element. Finally, the model is examined by means of a simple benchmark test that shows the potential capabilities of the present formulation. This application is focused on the short fiber reinforced thermoplastic PA6GF30 that is typically used in a wide set of engineering applications, especially in car bodies and aeronautical constructions.
AB - This paper is concerned with the development of a new coupled thermomechanical invariant-based transversely-isotropic elastic-plastic constitutive model for short fibre reinforced composites. The invariant-based character of the developed model under multiaxial loading conditions allows the incorporation of the direction-dependent response of short fibre composites that result from the employed injection molding process. The nonlinear behavior of such composites is regarded using an anisotropic yield surface and non-associative plastic potential functions. From the computational standpoint, this novel coupled thermo-mechanical formulation is incorporated into the FE code FEAP through the user subroutine UEL, i.e. the constitutive model is integrated within a user-defined element. Finally, the model is examined by means of a simple benchmark test that shows the potential capabilities of the present formulation. This application is focused on the short fiber reinforced thermoplastic PA6GF30 that is typically used in a wide set of engineering applications, especially in car bodies and aeronautical constructions.
KW - Finite element method (FEM)
KW - Short fiber reinforced thermoplastics
KW - Thermo-mechanical coupling
KW - Transversely isotropic thermo-plasticity
UR - http://www.scopus.com/inward/record.url?scp=84994152869&partnerID=8YFLogxK
M3 - Paper
T2 - 20th International Conference on Composite Materials, ICCM 2015
Y2 - 19 July 2015 through 24 July 2015
ER -