Tunneling cracks in full scale wind turbine blade joints

被引：16
|
作者：
Jorgensen, Jeppe B. [1 ,2 ]
Sorensen, Bent F. [2 ]
Kildegaard, Casper [1 ]
机构：
[1] LM Wind Power, Ostre Alle 1, DK-6640 Lunderskov, Denmark
[2] Tech Univ Denmark, Dept Wind Energy, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
来源：
ENGINEERING FRACTURE MECHANICS | 2018年 / 189卷
关键词：
Bonded joints; Fatigue crack growth; Residual stresses; Polymer matrix composites; Finite element analysis; EPOXY-RESIN COMPOSITE; ENERGY-RELEASE RATE; THIN-FILMS; STIFFNESS REDUCTION; TRANSVERSE CRACKING; STRUCTURAL COLLAPSE; LAYERED COMPOSITES; CHANNEL CRACKING; GROWTH-BEHAVIOR; ADHESIVE LAYER;
D O I：
10.1016/j.engfracmech.2017.11.016
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A novel approach is presented and used in a generic tunneling crack tool for the prediction of crack growth rates for tunneling cracks propagating across a bond-line in a wind turbine blade under high cyclic loadings. In order to test and demonstrate the applicability of the tool, model predictions are compared with measured crack growth rates from a full scale blade fatigue test. The crack growth rates, measured for a several metre long section along the blade trailing-edge joint during the fatigue test, are found to be in-between the upper- and lower-bound predictions. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：361 / 376
页数：16
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