CHARACTERIZATION OF WAVINESS IN WIND TURBINE BLADES USING AIR COUPLED ULTRASONICS

被引：18

作者：

Chakrapani, Sunil Kishore ^{[1
]}

Dayal, Vinay ^{[1
]}

Hsu, David K. ^{[1
]}

Barnard, Daniel J. ^{[1
]}

Gross, Andrew ^{[1
]}

机构：

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

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B | 2011年 / 1335卷

关键词：

Air-Coupled Ultrasound; Fiber Waviness; Thick Composites; Wind Turbine Blades;

D O I：

10.1063/1.3592041

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Waviness in glass fiber reinforced composite is of great interest in composite research, since it results in the loss of stiffness. Several NDE techniques have been used previously to detect waviness. This work is concerned with waves normal to the plies in a composite. Air-coupled ultrasonics was used to detect waviness in thick composites used in the manufacturing of wind turbine blades. Composite samples with different wave aspect ratios were studied. Different wavy samples were characterized, and a three step process was developed to make sure the technique is field implementable. This gives us a better understanding of the effect of waviness in thick composites, and how it affects the life and performance of the composite.

引用

页码：956 / 962

页数：7

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