Pultrusion of a vertical axis wind turbine blade part-II: combining the manufacturing process simulation with a subsequent loading scenario

Ismet Baran, Jesper Henri Hattel, Cem Celal Tutum, Remko Akkerman

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper in particular deals with the integrated modeling of a pultruded NACA0018 blade profile being a part of EU funded DeepWind project. The manufacturing aspects of the pultrusion process are associated with the preliminary subsequent service loading scenario. A 3D thermochemical analysis of the pultrusion process is sequentially coupled with a 2D quasi-static mechanical analysis in which the process induced residual stresses and distortions are predicted using the generalized plane stain elements in a commercial finite element software ABAQUS. The temperature- and cure-dependent resin modulus is implemented by employing the cure hardening instantaneous linear elastic (CHILE) model in the process simulation. The subsequent bent-in place simulation of the pultruded blade profile is performed taking the residual stresses into account. The integrated numerical simulation tool predicts the internal stress levels of the profile at the end of the bending analysis. It is found that the process induced residual stresses have the potential to influence the internal stresses arise in the structural analysis.
Original languageEnglish
JournalInternational Journal of Material Forming
Volume8
Issue number3
Pages (from-to)367-378
ISSN1960-6206
DOIs
Publication statusPublished - 2015

Keywords

  • Pultrusion process
  • Residual/internal stress
  • Finite element analysis
  • Integrated modelling
  • Thermosetting resin

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