Abstract
This paper investigates the integrated modeling of a pultruded NACA0018 blade profile which is a part of the FP7 EU project DeepWind. The pultrusion process simulation is combined with the preliminary subsequent in-service load scenario. In particular, the process induced residual stresses and distortions are predicted by using a new approach combining a 3D Eulerian thermochemical analysis, in which the temperature and the cure degree distributions are obtained, and a 2D quasi-static plane strain mechanical analysis. The post-die region where convective cooling prevails is also included in the process model. The bending into shape of the pultruded blade profile is simulated with and without taking the residual stresses into account. The internal stress distribution in the profile is evaluated after the bending analysis and it is found that the process induced residual stresses have the potential to promote or to demote the internal stresses in the structural analysis.
Original language | English |
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Journal | Key Engineering Materials |
Volume | 554-557 |
Pages (from-to) | 2127-2137 |
ISSN | 1013-9826 |
DOIs | |
Publication status | Published - 2013 |
Event | 16th annual ESAFORM Conference on Material Forming - Aveiro, Portugal Duration: 22 Apr 2013 → 24 Apr 2013 http://esaform2013.com/ |
Conference
Conference | 16th annual ESAFORM Conference on Material Forming |
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Country/Territory | Portugal |
City | Aveiro |
Period | 22/04/2013 → 24/04/2013 |
Internet address |
Keywords
- Pultrusion process
- Residual/internal stress
- Distortions
- Finite element analysis
- Thermosetting resin