Details
| Original language | English |
|---|---|
| Title of host publication | Material Forming |
| Editors | Anna Carla Araujo, Arthur Cantarel, France Chabert, Adrian Korycki, Philippe Olivier, Fabrice Schmidt |
| Pages | 411-421 |
| Number of pages | 11 |
| Publication status | Published - 25 May 2024 |
Publication series
| Name | Materials Research Proceedings |
|---|---|
| Volume | 41 |
| ISSN (Print) | 2474-3941 |
| ISSN (electronic) | 2474-395X |
Abstract
Keywords
- Glass Mat Reinforced Thermoplastic, Material Characterisation, Squeeze Flow
ASJC Scopus subject areas
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Material Forming. ed. / Anna Carla Araujo; Arthur Cantarel; France Chabert; Adrian Korycki; Philippe Olivier; Fabrice Schmidt. 2024. p. 411-421 (Materials Research Proceedings; Vol. 41).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Rheological characterisation and modelling of a glass mat reinforced thermoplastic for the simulation of compression moulding
AU - Althaus, P.
N1 - Publisher Copyright: © 2024, Association of American Publishers. All rights reserved.
PY - 2024/5/25
Y1 - 2024/5/25
N2 - The use of hybrid components in the automotive industry is steadily increasing due to their lightweight potential. By combining fibre-reinforced plastics with metallic materials, high-strength components with lower weight than monolithic metal parts can be realised. The overall aim of the project “HyFiVe” is to exploit this potential for electric vehicles by developing a scaled battery housing structure made of a glass mat reinforced thermoplastic (GMT) paired with unidirectional reinforced (UD) tapes and a metallic reinforcement frame. The GMT is formed by compression moulding and serves as the base of the battery housing structure. Numerical simulation is an efficient tool for process design that can determine a suitable process window and reduce experimental trial-and-error tests. Particularly, realistic modelling of the GMT flow behaviour is essential for reliable simulation results. In this contribution, the rheological properties of a GMT consisting of a polyamide 6 (PA6) matrix with 30% glass fibre reinforcement were determined. Isothermal compression tests were carried out with a parallel plate rheometer at different temperatures and varying squeeze rates. The squeeze force and punch displacement were evaluated to determine the rheological data of the GMT. Two methods for the modeling of the flow behaviour were considered. At first, pure shear flow was assumed and the viscosity was modelled as a function of the shear rate by means of a power-law. Secondly, a pure biaxial extension was assumed and the true stress was modelled in dependence of true strain and strain rate. Subsequently, for a verification of the material models, the compression tests were simulated in ABAQUS using the Coupled Eulerian-Lagrange (CEL) approach and the results were compared to the experiments.
AB - The use of hybrid components in the automotive industry is steadily increasing due to their lightweight potential. By combining fibre-reinforced plastics with metallic materials, high-strength components with lower weight than monolithic metal parts can be realised. The overall aim of the project “HyFiVe” is to exploit this potential for electric vehicles by developing a scaled battery housing structure made of a glass mat reinforced thermoplastic (GMT) paired with unidirectional reinforced (UD) tapes and a metallic reinforcement frame. The GMT is formed by compression moulding and serves as the base of the battery housing structure. Numerical simulation is an efficient tool for process design that can determine a suitable process window and reduce experimental trial-and-error tests. Particularly, realistic modelling of the GMT flow behaviour is essential for reliable simulation results. In this contribution, the rheological properties of a GMT consisting of a polyamide 6 (PA6) matrix with 30% glass fibre reinforcement were determined. Isothermal compression tests were carried out with a parallel plate rheometer at different temperatures and varying squeeze rates. The squeeze force and punch displacement were evaluated to determine the rheological data of the GMT. Two methods for the modeling of the flow behaviour were considered. At first, pure shear flow was assumed and the viscosity was modelled as a function of the shear rate by means of a power-law. Secondly, a pure biaxial extension was assumed and the true stress was modelled in dependence of true strain and strain rate. Subsequently, for a verification of the material models, the compression tests were simulated in ABAQUS using the Coupled Eulerian-Lagrange (CEL) approach and the results were compared to the experiments.
KW - Glass Mat Reinforced Thermoplastic
KW - Material Characterisation
KW - Squeeze Flow
UR - http://www.scopus.com/inward/record.url?scp=85195888829&partnerID=8YFLogxK
U2 - 10.21741/9781644903131-46
DO - 10.21741/9781644903131-46
M3 - Conference contribution
SN - 9781644903131
T3 - Materials Research Proceedings
SP - 411
EP - 421
BT - Material Forming
A2 - Araujo, Anna Carla
A2 - Cantarel, Arthur
A2 - Chabert, France
A2 - Korycki, Adrian
A2 - Olivier, Philippe
A2 - Schmidt, Fabrice
ER -