INVESTIGATION OF WAVINESS IN WIND TURBINE BLADES: STRUCTURAL HEALTH MONITORING

被引：2

作者：

Chakrapani, Sunil Kishore ^{[1
]}

Dayal, Vinay ^{[1
]}

Barnard, Daniel J. ^{[2
]}

机构：

[1] Iowa State Univ, Dept Aerosp Engn, Ames, IA 50011 USA

[2] Iowa State Univ, Ctr Nondestruct Evaluat, Ames, IA 50011 USA

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 32A AND 32B | 2013年 / 1511卷

关键词：

Fiber Waviness; Structural Health Monitoring; Wind Turbine Blades;

D O I：

10.1063/1.4789063

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Waviness in composite wind turbine blades was detected and characterized with the help of air coupled ultrasonics. Based on the aspect ratio, the detected marcels are either accepted or rejected. A passive structural health monitoring approach has been presented here to monitor the accepted marcels above a threshold. The fatigue life of specimen is most affected in the presence of a marcel. Hence this study focused on the damage evaluation after fatigue testing. Wavy laminate was subjected to fatigue load to investigate the fracture mechanisms near the marcel. Different types of defects were identified from this study and were used to develop appropriate instrumentation for health monitoring of a wavy laminate using PVDF patches.

引用

页码：310 / 316

页数：7

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