Submit

Login Login

Register Register

Home / Journals / SDHM / Online First / doi:10.32604/sdhm.2024.045023
Journal Menu
Special lssues
Table of Content

All issues

Online First

2024

2023

2022

2021

2020

2019

2018

2017

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

Open Access

ARTICLE

Research on Fatigue Damage Behavior of Main Beam Sub-Structure of Composite Wind Turbine Blade

Haixia Kou1,*, Bowen Yang1, Xuyao Zhang2, Xiaobo Yang1, Haibo Zhao1
1 School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
2 School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
* Corresponding Author: Haixia Kou. Email: kouhaixia@mail.lzjtu.cn
(This article belongs to the Special Issue: Health Monitoring and Rapid Evaluation of Infrastructures)

Structural Durability & Health Monitoring https://doi.org/10.32604/sdhm.2024.045023

Received 15 August 2023; Accepted 10 November 2023; Published online 28 March 2024

Abstract

Given the difficulty in accurately evaluating the fatigue performance of large composite wind turbine blades (referred to as blades), this paper takes the main beam structure of the blade with a rectangular cross-section as the simulation object and establishes a composite laminate rectangular beam structure that simultaneously includes the flange, web, and adhesive layer, referred to as the blade main beam sub-structure specimen, through the definition of blade sub-structures. This paper examines the progressive damage evolution law of the composite laminate rectangular beam utilizing an improved 3D Hashin failure criterion, cohesive zone model, B-K failure criterion, and computer simulation technology. Under static loading, the layup angle of the anti-shear web has a close relationship with the static load-carrying capacity of the composite laminate rectangular beam; under fatigue loading, the fatigue damage will first occur in the lower flange adhesive area of the whole composite laminate rectangular beam and ultimately result in the fracture failure of the entire structure. These results provide a theoretical reference and foundation for evaluating and predicting the fatigue performance of the blade main beam structure and even the full-size blade.

Keywords

Composite laminate; wind turbine blade sub-structure; progressive damage analysis; user material subroutine; cohesive zone model

  • 156

    View

  • 36

    Download

  • 0

    Like

Related articles
Copyright© 2024 Tech Science Press
© 1997-2024 TSP (Henderson, USA) unless otherwise stated

Share Link