Modelling and Measurements of Ultrasonic Fields in Composites

Hong Bo Wang; Chun Guang Xu

doi:10.4028/www.scientific.net/AMM.513-517.238

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517Modelling and Measurements of Ultrasonic Fields in...

Modelling and Measurements of Ultrasonic Fields in Composites

Abstract:

Widely use of composite structures such as fiber-reinforced composites advances the demand for reliable and effective techniques of ultrasonic nondestructive testing. The model to calculate acoustic field around anisotropic materials is introduced, including propagation and penetration model of Gaussian beams in front of and behind the composites. Simulation and experiments on transmitted acoustic field of composites with different thickness were conducted. Some characteristics of ultrasonic filed around composite materials, such as focal distance and beam spread have been researched theoretically and experimentally. The accuracy of the proposed model is verified by the comparison of the model-based predictions with the experimental results. The achievement will be useful for detecting the defects inside of composites nondestructively.

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Periodical:

Applied Mechanics and Materials (Volumes 513-517)

Pages:

238-241

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.513-517.238

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Online since:

February 2014

Authors:

Hong Bo Wang*, Chun Guang Xu

Keywords:

Composite, Multi-Gaussian Beams, Transducer, Ultrasonic Field

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