Abstract
novel three dimensional thermo-chemical simulation
of the pultrusion process is presented. A simulation
is performed for the pultrusion of a NACA0018 blade profile
having a curved geometry, as a part of the DeepWind
project. The finite element/nodal control volume (FE/NCV)
technique is used. First, a pultrusion simulation of a Ushaped
composite profile is performed to validate the model
and it is found that the obtained cure degree profiles match
with those given in the literature. Subsequently, the pultrusion
process simulation of the NACA0018 profile is
performed. The evolutions of the temperature and cure
degree distributions are predicted inside the heating die and
in the post-die region where convective cooling prevails.
The effects of varying process conditions on the part quality
are investigated for two different heater configurations
and with three different pulling speeds. Larger throughthickness
gradients are obtained for the temperature and
degree of cure as the pulling speed increases. This will affect
the process induced residual stresses and distortions during
manufacturing.
Original language | English |
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Journal | International Journal of Material Forming |
Volume | 8 |
Pages (from-to) | 379-389 |
ISSN | 1960-6206 |
DOIs | |
Publication status | Published - 2015 |
Keywords
- Pultrusion process
- Curing
- Finite element analysis
- NACA0018 airfoil
- Thermosetting resin