大型风电叶片褶皱缺陷拉伸失效机理研究

谢利来; 杨晓辉; 殷多银; 胡聪良; 刘瑾; 张宇

doi:doi:10.19912/j.0254-0096.tynxb.2025-0634

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大型风电叶片褶皱缺陷拉伸失效机理研究

更新时间：2026-07-22

- 大型风电叶片褶皱缺陷拉伸失效机理研究
- Vol. 47, Issue 4, Pages: 438-447(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2025-0634
  CLC： TB332
- Online First：08 May 2026，
  
  Published：2026
- 稿件说明：
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谢利来, 杨晓辉, 殷多银, et al. 大型风电叶片褶皱缺陷拉伸失效机理研究[J]. 2026, 47(4): 438-447.
DOI：

谢利来, 杨晓辉, 殷多银, et al. 大型风电叶片褶皱缺陷拉伸失效机理研究[J]. 2026, 47(4): 438-447. DOI： doi:10.19912/j.0254-0096.tynxb.2025-0634.

摘要

针对大型风电叶片制造过程中产生的褶皱缺陷

系统性研究其对层合板拉伸失效机理的影响

通过理论分析、有限元仿真及试验验证

揭示不同褶皱角度下单轴层合板与双轴层合板的应力分布特征及失效模式。研究表明：层合板的面外褶皱会导致局部纤维偏转

增大层间应力

引发层间失效

其剩余强度取决于复合材料层间性能;受层间性能制约

褶皱对单向层合板拉伸强度的影响更为显著

因此在叶片结构设计中应针对不同层合板类型设定相应的褶皱容差标准;理论与试验结果对比显示

两者误差满足工程要求

尤其在大角度褶皱（θ=50°）条件下

样件拉伸强度误差仅为3.07%

验证了所提方法的工程适用性。

Abstract

This paper systematically studies the effect of wrinkle defects—commonly formed during the manufacturing of large wind turbine blades—on the tensile failure behavior of composite laminates. Through theoretical analysis

finite element simulation

and experimental tests

the stress distribution and failure modes of unidirectional and biaxial laminates under different wrinkle angles are investigated. Results indicate that out-of-plane wrinkles lead to local fiber deflection

increase interlaminar stress

and cause interlaminar failure. The residual strength is mainly governed by the interlaminar properties of the composite. Due to the limitation of interlaminar performance

wrinkles have a more noticeable effect on the tensile strength of unidirectional laminates. Therefore

in the structural design of blades

the influence of wrinkles should be considered

and different wrinkle tolerance criteria should be established for different types of laminates. The comparison between theoretical and experimental results shows that the errors meet engineering requirements. In particular

for laminates with a large wrinkle angle （=50°）

the error in tensile strength is only 3.07%

confirming that the proposed method is applicable in engineering practice.

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references

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