Details
| Original language | English |
|---|---|
| Pages (from-to) | 11-16 |
| Number of pages | 6 |
| Journal | Procedia Manufacturing |
| Volume | 47 |
| Early online date | 26 Apr 2020 |
| Publication status | Published - 2020 |
| Event | 23rd International Conference on Material Forming - Cottbus, Germany Duration: 4 May 2020 → 6 May 2020 Conference number: 23 |
Abstract
This publication deals with finite element based modelling and the experimental validation of the flow characteristics of glass mat reinforced thermoplastic composite (GMT). Furthermore, the interaction of GMT and UD-Tape inserts is examined. The simulation model is set up in LS-Dyna. In order to model the high degree of deformation of the GMT the smooth particle hydrodynamics (SPH) method is used. A viscoplastic material model is applied in order to take into account the strain rate as well as strain hardening flow behavior. For the experimental validation of the numerical investigations, a heated plate tool with a surface area of 300 x 300 mm was built. This tool contains two internal pressure sensors as well as a temperature sensor. With the help of this test setup, it is possible to investigate the pressure build-up, pressure differences and surface temperatures of the GMT as well as the time-dependent position of the flow front. In addition, to pressure differences over the contact area between tool and GMT, there are differences in wall thickness, fiber orientation and fiber matrix separation depending on the flow path. The forming tests were carried out at a tool temperature of 115 °C. After the validation of the simulation model the fiber displacement of UD-Tapes insert is discussed.
Keywords
- FE-simulation, GMT compression molding, Material flow analysis, UD-fibers
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
- Computer Science(all)
- Artificial Intelligence
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In: Procedia Manufacturing, Vol. 47, 2020, p. 11-16.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Numerical and Experimental Investigation of GMT Compression Molding and Fiber Displacement of UD-Tape Inserts
AU - Behrens, Bernd Arno
AU - Bohne, Florian
AU - Lorenz, Ralf
AU - Arndt, Hendrik
AU - Hübner, Sven
AU - Micke-Camuz, Moritz
N1 - Conference code: 23
PY - 2020
Y1 - 2020
N2 - This publication deals with finite element based modelling and the experimental validation of the flow characteristics of glass mat reinforced thermoplastic composite (GMT). Furthermore, the interaction of GMT and UD-Tape inserts is examined. The simulation model is set up in LS-Dyna. In order to model the high degree of deformation of the GMT the smooth particle hydrodynamics (SPH) method is used. A viscoplastic material model is applied in order to take into account the strain rate as well as strain hardening flow behavior. For the experimental validation of the numerical investigations, a heated plate tool with a surface area of 300 x 300 mm was built. This tool contains two internal pressure sensors as well as a temperature sensor. With the help of this test setup, it is possible to investigate the pressure build-up, pressure differences and surface temperatures of the GMT as well as the time-dependent position of the flow front. In addition, to pressure differences over the contact area between tool and GMT, there are differences in wall thickness, fiber orientation and fiber matrix separation depending on the flow path. The forming tests were carried out at a tool temperature of 115 °C. After the validation of the simulation model the fiber displacement of UD-Tapes insert is discussed.
AB - This publication deals with finite element based modelling and the experimental validation of the flow characteristics of glass mat reinforced thermoplastic composite (GMT). Furthermore, the interaction of GMT and UD-Tape inserts is examined. The simulation model is set up in LS-Dyna. In order to model the high degree of deformation of the GMT the smooth particle hydrodynamics (SPH) method is used. A viscoplastic material model is applied in order to take into account the strain rate as well as strain hardening flow behavior. For the experimental validation of the numerical investigations, a heated plate tool with a surface area of 300 x 300 mm was built. This tool contains two internal pressure sensors as well as a temperature sensor. With the help of this test setup, it is possible to investigate the pressure build-up, pressure differences and surface temperatures of the GMT as well as the time-dependent position of the flow front. In addition, to pressure differences over the contact area between tool and GMT, there are differences in wall thickness, fiber orientation and fiber matrix separation depending on the flow path. The forming tests were carried out at a tool temperature of 115 °C. After the validation of the simulation model the fiber displacement of UD-Tapes insert is discussed.
KW - FE-simulation
KW - GMT compression molding
KW - Material flow analysis
KW - UD-fibers
UR - http://www.scopus.com/inward/record.url?scp=85085479328&partnerID=8YFLogxK
U2 - 10.1016/j.promfg.2020.04.109
DO - 10.1016/j.promfg.2020.04.109
M3 - Conference article
AN - SCOPUS:85085479328
VL - 47
SP - 11
EP - 16
JO - Procedia Manufacturing
JF - Procedia Manufacturing
SN - 2351-9789
T2 - 23rd International Conference on Material Forming
Y2 - 4 May 2020 through 6 May 2020
ER -