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Communication Dans Un Congrès Année : 2022

Nondestructive evaluation of composite and porous materials by 3D acoustical imaging

Résumé

In this work, based on the use of high frequency (20MHz) focus ultrasonic transducer and echography, a high-resolution three-dimensional acoustical imaging technique has been developed, permitting 3D reconstruction of the internal structure of materials at mesoscopic level. The data acquisition is realized by the combination of A, B and C scan in reflection mode. The 3D material structure is obtained by applying a surface reconstruction algorithm to the scanned volumetric data. Two application examples are shown to valid the method: the imaging of a 2D textile composite sample before and after a mechanical impact testing, and a porous bone sample. The material structure can be quantitatively evaluated and analyzed.
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Dates et versions

hal-03663793 , version 1 (10-05-2022)

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  • HAL Id : hal-03663793 , version 1

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Wei-Jiang Xu, Franck Lauro, Lynda Chehami, Hervé Morvan, Rémi Delille. Nondestructive evaluation of composite and porous materials by 3D acoustical imaging. 16ème Congrès Français d'Acoustique, CFA 2022, Apr 2022, Marseille, France. ⟨hal-03663793⟩
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