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Enhancement of the total focusing method imaging for immersion testing of anisotropic carbon fiber composite structures

Abstract : The use of composite structures has importantly increased because of their reduced weight, assembly simplification and excellent specific strength and stiffness. The multiple possibilities of their manufacturing allow today to integrate within a single structure multiple functions: design, mechanical strength, multi-material...These structures, by their geometric and structural complexity (anisotropy, attenuation and scattering noise), do not always allow the application of conventional ultrasound real-time methods. In this communication, the problem related to anisotropy is treated in a first part with an analysis of the influence of materials properties on the conventional array imaging methods. In the second part, anisotropy is taken into account in the Total Focusing Method (TFM) to improve the image quality in carbon fiber composite plates.
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https://hal-cea.archives-ouvertes.fr/cea-01811893
Contributor : Léna Le Roy <>
Submitted on : Monday, June 11, 2018 - 8:03:44 AM
Last modification on : Monday, February 10, 2020 - 6:13:47 PM

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A. Aschy, N. Terrien, S. Robert, M. Bentahar. Enhancement of the total focusing method imaging for immersion testing of anisotropic carbon fiber composite structures. 43rd Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE , Oct 2016, Orlando, United States. ⟨10.1063/1.4974592⟩. ⟨cea-01811893⟩

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