Failure test and finite element simulation of a large wind turbine composite blade under static loading

Xiao Chen*, Wei Zhao, Xiao Lu Zhao, Jian Zhong Xu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This study presented a failure analysis of a 52.3 m composite wind turbine blade under static loading. Complex failure characteristics exhibited at the transition region of the blade were thoroughly examined and typical failure modes were indentified. In order to predict multiple failure modes observed in the tests and gain more insights into the failure mechanisms of the blade, a Finite Element (FE) simulation was performed using a global-local modeling approach and Progressive Failure Analysis (PFA) techniques which took into account material failure and property degradation. Failure process and failure characteristics of the transition region were satisfactorily reproduced in the simulation, and it was found that accumulated delamination in spar cap and shear web failure at the transition region were the main reasons for the blade to collapse. Local buckling played an important role in the failure process by increasing local out-of-plane deformation, while the Brazier effect was found not to be responsible for the blade failure.

Original languageEnglish
JournalEnergies
Volume7
Issue number4
Pages (from-to)2274-2297
ISSN1996-1073
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint Dive into the research topics of 'Failure test and finite element simulation of a large wind turbine composite blade under static loading'. Together they form a unique fingerprint.

Cite this