Work

Simulation of ultrasonic inspection of concrete using finite elements and analytical models

Year: 2025

Type: article

Abstract: Ultrasonic non-destructive testing (NDT) simulation plays a key role in the evaluation of concrete structures. Concrete is a dense composite medium whose heterogeneities (aggregates, porosity, micro cracks) cause wave dispersion and attenuation, thus affecting inspection techniques. Classical approaches rely on the study of the coherent wave, characterized by its phase velocity and attenuation. Since 3D numerical models are too computationally expensive, improving existing simplified analytical models is essential. This study proposes a new 2D homogenization model better suited for dense media. The improvement lies in a more accurate description in analytical models of the pair-correlation function of aggregate positions. The new model is compared to a 2D finite elements code integrated in CIVA NDT simulation platform. Results show good agreement between the developed analytical model and numerical simulations. Further work will explore the effects of aggregate granulometry and other material configurations to ultimately extend the model to 3D and improve ultrasonic simulation accuracy for concrete.

Source: e-Journal of Nondestructive Testing

DOI: 10.58286/31653

Authors: Nouhayla Khalid, Manda Ramaniraka, Vincent Dorval, Jean François Chaix, Michel Darmon

Institutions: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, Laboratoire d'Intégration des Systèmes et des Technologies, Centre National de la Recherche Scientifique, Aix-Marseille Université, Centrale Méditerranée

Language: English

Topic: Ultrasonics and Acoustic Wave Propagation

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4414336194

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