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Defect detection in composite material by circular receiving array
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AI
DOI：10.1016/j.measurement.2026.122937.png)
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Abstract
En 中文
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Defect detection in composite materials.
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Capable of locating the defects with high accuracy.
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Fast detection of large surface.
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Suitable for multi-defect detection.
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Non-invasive detection based on ultrasonic guide wave.
Abstract
The composite materials are widely used in aircraft, space equipment and many other industrial equipment due to their excellent performance. However, during the preparation, processing and service of composite materials, various defects such as voids, cracks, delamination and debonding are prone to occur inside. These hidden defects can significantly reduce the mechanical properties of materials, easily lead to premature structural fracture, and further induce safety accidents such as equipment failure, which will not only cause serious casualties, but also bring huge economic losses and adverse social impacts. Non-destructive testing (NDT) technology can effectively monitor the material status and ensure the safe and reliable operation of equipment. Traditional acoustic non-destructive testing methods mainly detect defects by analyzing the time delay and amplitude characteristics of defect-reflected waves. However, the complex internal structure of composite materials with numerous interfaces tends to cause arbitrary refraction of sound waves, making it difficult to accurately determine the wave propagation path. To address the testing challenges posed by the complex structure of composite materials, this paper proposes a novel ultrasonic non-destructive testing method based on the signal correlation of different measuring points.
Keywords:
Composite Materials
Nondestructive Testing (NDT)
Ultrasonic Testing
Correlation Coefficient
Defect Detection
Journal
IF:
5.6
Papers:
2.0W
Citations:
5.4W