Ultrasound monitoring of multiphase architectured media: Bandgap tracking via the measurement of the reflection coefficient

Gattin, Max; Bochud, Nicolas; Grossman, Quentin; Ruffoni, Davide; Rosi, Giuseppe; Naili, Salah

doi:10.1016/j.apacoust.2023.109844

Applied Acoustics

2024

DOI: 10.1016/j.apacoust.2023.109844

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Ultrasound monitoring of multiphase architectured media: Bandgap tracking via the measurement of the reflection coefficient

Max Gattin,

Nicolas Bochud,

Quentin Grossman

et al.

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2024

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Cited by 2 publications

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Complete inverse design to customize two-dimensional dispersion relation via nonlocal phononic crystals

Paul,

Hasan,

et al. 2024

Phys. Rev. B

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Complete inverse design to customize two-dimensional dispersion relation via nonlocal phononic crystals

Paul,

Hasan,

et al. 2024

Phys. Rev. B

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Identification of viscoelastic material properties by ultrasonic angular measurements in double through-transmission

Poudrel,

Gattin,

Rosi

et al. 2024

The Journal of the Acoustical Society of America

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Recent advances in additive manufacturing (AM) of viscoelastic materials have paved the way toward the design of increasingly complex structures. In particular, emerging biomedical applications in acoustics involve structures with periodic micro-architectures, which require a precise knowledge of longitudinal and transverse bulk properties of the constituent materials. However, the identification of the transverse properties of highly soft and attenuating materials remains particularly challenging. Thereby, the present work provides a methodological framework to identify the frequency-dependent ultrasound characteristics (i.e., phase velocity and attenuation) of viscoelastic materials. The proposed approach relies on an inverse procedure based on angular measurements achieved in double through-transmission, referred as θ-scan. Toward this goal, a forward modeling of the double transmitted waves through a homogeneous solid is proposed for any incidence angle based on the global matrix formalism. The experimental validation is conducted by performing ultrasound measurements on two types of photopolymers that are commonly employed for AM purposes: a soft elastomer (ElasticoTM Black) and a glassy polymer (VeroUltraTM White). As a result, the inferred dispersive ultrasound characteristics are of interest for the computational calibration and validation of models involving complex multi-material structures in the MHz regime.

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Ultrasound monitoring of multiphase architectured media: Bandgap tracking via the measurement of the reflection coefficient

Cited by 2 publications

References 37 publications

Complete inverse design to customize two-dimensional dispersion relation via nonlocal phononic crystals

Complete inverse design to customize two-dimensional dispersion relation via nonlocal phononic crystals

Identification of viscoelastic material properties by ultrasonic angular measurements in double through-transmission

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