Evaluation of shielding effectiveness of composite wall with a time domain discontinuous Galerkin method

Ntichi, Abelin Kameni; Modave, Axel; Boubekeur, Mohamed; Préault, Valentin; Pichon, Lionel; Geuzaine, Christophe

doi:10.1051/epjap/2013120438

Eur. Phys. J. Appl. Phys.

2013

DOI: 10.1051/epjap/2013120438

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Evaluation of shielding effectiveness of composite wall with a time domain discontinuous Galerkin method

Abelin Kameni Ntichi

Axel Modave

Mohamed Boubekeur

et al.

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Cited by 4 publications

References 7 publications

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Effective Electromagnetic Properties of Composite Material Computed From Neural Network Approach

Kameni,

Palessonga,

Semmoumy

et al. 2024

Int J Numerical Modelling

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Thanks to their lightweight, composite materials have become widely used in the automotive and aerospace industries. The design of components made from these materials is carried out by numerical modeling which can sometimes be tedious because of the need to take into account the internal structure of these materials. Obtaining the effective properties of an equivalent homogeneous material to replace the composite in our numerical models makes modeling easier. Classical homogenization approaches are not always suitable to obtain these effective properties. This article deals with an inverse problem that consists in computing the electromagnetic properties from the knowledge of the magnetic shielding effectiveness values. For different composite samples, an artificial neural network method is used to predict the effective conductivities from the magnetic shielding effectiveness measurements. The magnetic shielding effectiveness values computed from the predicted conductivities are close to those obtained from the measurements.

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Effective Electromagnetic Properties of Composite Material Computed From Neural Network Approach

Kameni,

Palessonga,

Semmoumy

et al. 2024

Int J Numerical Modelling

View full text Add to dashboard Cite

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Modeling of thin heterogeneous sheets in the discontinuous Galerkin method for 3D transient scattering problems

Boubekeur¹,

Ntichi²,

Pichon³

2016

Eur. Phys. J. Appl. Phys.

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Time domain reflectometry model: analysis and characterization of a chafing defect in a coaxial cable

Kameni

Loete

Pichon

2018

Eur. Phys. J. Appl. Phys.

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This paper presents experimental and numerical studies of a chafing soft defect realized by partially milling coaxial cables. The approach is based on the time domain reflectometry technique. The numerical model consists in solving Maxwell’s equations while an incident Gaussian pulse is injected on the faulty line. The experimental time domain measurements are performed with a vector network analyzer. To get the experimental results comparable to the numerical ones, a process to denoise the measured impulse responses is proposed. The reflection coefficients obtained are compared to those given by a classical approach based on a chain matrix model to show the impact of 3D numerical modeling in studying soft faults.

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Evaluation of shielding effectiveness of composite wall with a time domain discontinuous Galerkin method

Cited by 4 publications

References 7 publications

Effective Electromagnetic Properties of Composite Material Computed From Neural Network Approach

Effective Electromagnetic Properties of Composite Material Computed From Neural Network Approach

Modeling of thin heterogeneous sheets in the discontinuous Galerkin method for 3D transient scattering problems

Time domain reflectometry model: analysis and characterization of a chafing defect in a coaxial cable

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