Integrated analysis of compaction, edge distortion and residual deformation of wind-turbine thick composite spar-cap

Ammasai Sengodan, G ORCID: https://orcid.org/0000-0002-3256-0534, Joshi, SC and Chen, Z 2015, Integrated analysis of compaction, edge distortion and residual deformation of wind-turbine thick composite spar-cap , in: ICCM International Conferences on Composite Materials, 19 July 2015 - 24 July 2015, Copenhagen, Denmark.

Full text not available from this repository. (Request a copy)

Abstract

A scaled model of a unidirectional glass/epoxy wind turbine spar cap measuring 7.5 mm thick was cured in a vacuum assisted oven and noticed a non-uniform thickness along its length. Even though, a vacuum pressure of 1 bar applied to the laminate, the edge deformation was severe leading to edge curvature. These shortcomings cannot be dealt separately in a single manufacturing process because of the coupled nature of the entire processing physics. Even though considerable research efforts are made to predict the process induced shape distortion and residual stress, only thermo-mechanical modeling was focused in the past. The flow-compaction induced deformation was either studied separately or not included in the numerical process modelling of deformation studies. In this work, resin flow-induced compaction; edge distortion and residual deformation was simulated for a scaled wind turbine spar cap. For this purpose, a coupled numerical simulation procedure was established and implemented in a multi-physics finite element software package. This simulation results indicate that even though the distorted edge of the laminate is trimmed off; there will exist some curvature within the remaining part. Further, the residual deformation and related stresses can be determined from this single simulation procedure. Such fully coupled and integrated procedure may useful to select optimized process conditions to achieve intended final part dimensions with minimal manufacturing-induced effects.

Item Type: Conference or Workshop Item (Paper)
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: ICCM International Conferences on Composite Materials
Funders: Energy Research Institute, Nanyang Technological University, Nanyang Technological University
Depositing User: Dr Ganapathi Ammasai Sengodan
Date Deposited: 29 Sep 2022 12:16
Last Modified: 29 Sep 2022 12:16
URI: https://usir.salford.ac.uk/id/eprint/65009

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)