Numerical modeling of wave propagation in anisotropic viscoelastic laminated materials in transient regime: Application to modeling ultrasonic testing of composite structures

Impériale, Alexandre; Leymarie, Nicolas; Demaldent, Édouard

doi:10.1002/nme.6359

Cited by 10 publications

(11 citation statements)

References 72 publications

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“…They can be included around aggregates and other inclusions as a thin layer with different material properties. Solid materials can be specified as viscoelastic, with an absorption specified by a quality factor and taken into account by a Maxwell model [12].…”

Section: Definition Of the Configuration Results Displaymentioning

confidence: 99%

FEM-based simulation tools for ultrasonic concrete inspection

Dorval¹,

Impériale²,

Darmon³

et al. 2022

eJNDT

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The simulation of nondestructive evaluation is a useful tool in the design of inspection procedure or the interpretation of results. In the case of the ultrasonic inspection of concrete, modeling the complex interaction of ultrasonic waves with the heterogeneous material is challenging. A finite element code for the simulation of ultrasonic inspections is developed in the CIVA software platform. It is the kernel of a new simulation module dedicated to concrete in a custom version of CIVA. This module relies on automated meshing managed through a user-friendly interface and offers comparatively fast numerical computations. Its aims at modeling practical concrete inspection configurations, involving for example distributions of aggregates, voids and metallic objects. In this communication, we present these modelling efforts and focus on configurations of interests and evaluation of the modelling performances performed in a recent collaboration between CEA and EDF.

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Section: Definition Of the Configuration Results Displaymentioning

confidence: 99%

FEM-based simulation tools for ultrasonic concrete inspection

Dorval¹,

Impériale²,

Darmon³

et al. 2022

eJNDT

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“…Using successively the definition of the fluid velocity potential (4), Lemma 1, and the definition (11) of the first mortar unknown, the surface term reads…”

Section: Mortar Elements and Coupled Weak Formulationmentioning

confidence: 99%

An energy preserving time scheme based on the mortar element method for effective transmission conditions between fluid and solid domains in transient wave propagation problems

Impériale

2023

Numerical Meth Engineering

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We are interested in providing an efficient numerical scheme to represent wave propagation in time domain for configurations where a fluid domain and a solid domain are separated by a thin coating layer. Various computational challenges and bottlenecks occur in this context: incorporating fluid–solid coupling, enabling non‐conform space discretization when wavelengths greatly differ from the fluid and the solid domain, and rendering robust time discretization w.r.t. the thin layer thickness. In order to address these issues, the proposed approach combines the mortar element method with so‐called effective transmission conditions, where the effect of the coating layer is incorporated through spring—mass coefficients at the interface between the fluid and solid domain. Using discrete energy arguments, we are able to prove that the associated fully discrete scheme is stable upon a stability condition independent of the thin coating layer. Moreover, we provide an efficient time marching algorithm leading to significantly improved performances, illustrated in 2D and 3D configurations linked to ultrasonic testing experiments modeling.

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“…This value is smaller than the usual "rule of thumb" of 15 to 20 points per wavelength for low-order methods. Finally, the module shall shortly include damping modelling based on [24], but all results presented in this paper are without damping.…”

Section: Unassembled Spectral Finite Elementsmentioning

confidence: 99%

Experimental Validation of Transient Spectral Finite Element Simulation Tools Dedicated to Guided Wave-Based Structural Health Monitoring

Mesnil

Recoquillay

Druet

et al. 2021

Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems

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In Guided Wave Structural Health Monitoring (GW-SHM), a strong need for reliable and fast simulation tools has been expressed throughout the literature in order to optimize SHM systems or demonstrate performance. Even though guided wave simulations can be conducted with most finite elements software packages, computational and hardware costs are always prohibitive for large simulation campaigns. A novel SHM module has been recently added to the CIVA software and relies on unassembled high order finite elements to overcome these limitations. This paper focuses on the thorough validation of CIVA for SHM to identify the limits of the models. After introducing the key elements of the CIVA SHM solution, a first validation is presented on a stainless steel pipe representative of the oil and gas industry. Second, validation is conducted on a composite panel with and without stiffener representative of some structures in the aerospace industry. Results show an excellent match between the experimental and simulated datasets, but only if the input parameters are fully determined prior to the simulations.

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Numerical modeling of wave propagation in anisotropic viscoelastic laminated materials in transient regime: Application to modeling ultrasonic testing of composite structures

Cited by 10 publications

References 72 publications

FEM-based simulation tools for ultrasonic concrete inspection

FEM-based simulation tools for ultrasonic concrete inspection

An energy preserving time scheme based on the mortar element method for effective transmission conditions between fluid and solid domains in transient wave propagation problems

Experimental Validation of Transient Spectral Finite Element Simulation Tools Dedicated to Guided Wave-Based Structural Health Monitoring

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