电气技术2025，Vol.26Issue(10)：23-31,54,10.
风力机叶片主梁分层损伤扩展研究
Study on the extension of delamination damage in the main beam of wind turbine blades
刘志文 1苗涛 1周康康 1卢小龙2
作者信息
- 1. 特变电工新疆新能源股份有限公司,西安 830011
- 2. 沈阳工业大学建筑与土木工程学院,沈阳 110870
- 折叠
摘要
Abstract
The delamination of composite laminates is a critical factor leading to structural failure in wind turbine blades.This study establishes a three-dimensional double cantilever beam(DCB)model for pure Mode I delamination in unidirectional composite panels based on cohesive zone theory.Numerical simulations are conducted to investigate the tensile and compressive responses of delaminated main spar panels under various delamination parameter settings.Under combined bending and shear loading conditions,a damage prediction analysis is performed on the unidirectional composite laminates with delamination,examining the evolution of delamination and its impact on the ultimate strength and failure modes of the main spar panels.Furthermore,a full-scale blade model incorporating delaminated spars is developed to analyze how variations in spar thickness affect delamination evolution and failure modes.The results demonstrate that both delamination length and position are key determinants of the peak load and damage initiation load,while differences in spar thickness govern whether local or global buckling occurs.关键词
风力机叶片/主梁/分层损伤/损伤演变/失效Key words
wind turbine blade/main beam/delamination damage/damage evolution/failure引用本文复制引用
刘志文,苗涛,周康康,卢小龙..风力机叶片主梁分层损伤扩展研究[J].电气技术,2025,26(10):23-31,54,10.
