Théo Cavalieri

PhD Research & Engineering acoustics
Past member of the Acoustic Laboratory of Le Mans University (LAUM) Acoustics Research Engineer at L-Acoustics

Researcher at LAUM (Le Mans, France), I am concerned about acoustics, numerical modelling and optimisation methods. I have mainly worked in collaboration with the transport industry (SNCF, Safran, Stellantis) on the topic of metamaterials, and two years on the topic of microporous mineral foams and their applications to acoustics at Empa (Zürich Area, Switzerland).

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Experience

Stellantis
Post-Doctoral Researcher

Modeling of resonant and periodic passive metamaterials for acoustic beam-steering
Optimisation methods, experimental validations. Extension of previous models to 3D structures. Targeting broadband acoustic sources.

Apr 2024 - Present

CNRS
Post-Doctoral Researcher

Characterisation methods for anisotropic porous materials
Numerical investigations and scientific reporting

October 2023 - December 2023

EMPA
Post-Doctoral Researcher

Modelling of microporous mineral foams for acoustics
Monitoring and analysis of train pass-by noise and vibrations with SBB
Optimisation and applications to sound absorption
Scanning electron microscopy

October 2021 - September 2023

Stellantis
Post-Doctoral Researcher

Modeling of resonant and periodic passive metamaterials for acoustic beam-steering
Optimisation methods, experimental validations.

May 2021 - September 2021

SAFRAN: Aircraft Engines
PhD Student

PhD Thesis - Modeling and design of meta-porous graded materials incorporating micro-resonateurs for sound attenuation in lined ducts.


This PhD aims at designing and experimentally validating novel porous materials specifically designed to absorb low-frequency sound. With standard materials this requires very thick treatments that cannot be used in practical applications. The challenge is to provide strong sound absorption and attenuation with thin treatments. The focus will be on functionally graded, digital meta-porous materials that incorporate micro-resonators to efficiently attenuate low frequency waves in lined ducts. New possibilities offered by rapid prototyping techniques will be employed to both manufacture and guide the design of these new acoustic treatments.

January 2018 - January 2021

Le Mans University
Study engineer

Mission - Numerical modeling of homogenised anisotropic porous media.


Bibliographical study and preliminary work on porous materials in acoustics. Development of analytical and numerical models, for the homogenization of elementary cells and wave propagation in porous media.

November 2017 - January 2018

SNCF: Innovation & research
Intern engineer

Master Thesis - Modeling of acoustic panels, an application of sonic crystals to railway noise reduction


SNCF as the manager of the french national rail network is obliged to respect the regulations in force concerning the exposure to the noise of the residents. The idea that we wish to study through this Master Thesis is the possibility of using resonant sonic crystals for a case of railway application. This approach is part of a research and innovation work in the field of acoustic barriers: finding, optimising, developing new concepts adapted to railway constraints and needs.

March 2017 - July 2017

Research

Topics

Study of complex media propagation, anisotropic microstructures, acoustics of resonant metamaterials and their further application for noise control.


Peer-reviewed publications

[2025 - Journal of Sound and Vibration] - Experimental characterization of fully-anisotropic equivalent fluids from normal incidence measurements, T. Cavalieri, M. Nolan, M. Gaborit, and J.-P. Groby

[2025 - Materials & Design] - Enhancement of the sound absorption of closed-cell mineral foams by perforations: Manufacturing process and model-supported adaptation, B. Van Damme, T. Cavalieri, C.-T. Nguyen, and C. Perrot

[2023 - Physical Review Applied] - Explicit Modeling and Optimization of Acoustic Metalenses for Baffled Sources, T. Cavalieri, V. Romero-García, M. Melon, J.-P. Groby, and J.-C. Chamard

[2022 - Wave Motion] - Non-locality of the Willis coupling in fluid laminates, M. Malléjac, T. Cavalieri, V. Romero-García, A. Merkel, D. Torrent, J. Christensen, J. Li, and J.-P. Groby

[2021 - Journal of Applied Physics] - Rapid additive manufacturing of optimized anisotropic metaporous surfaces for broadband absorption, T. Cavalieri, J. Boulvert, G. Gabard, V. Romero-García, M. Escouflaire, J. Regnard, and J.-P. Groby

[2020 - Journal of Applied Physics] - Folded metaporous material for sub-wavelength and broadband perfect sound absorption, J. Boulvert, J. Costa-Baptista, T. Cavalieri, V. Romero-García, G. Gabard, E. R. Fotsing, A. Ross, M. Perna, J. Mardjono, and J.-P. Groby

[2020 - MDPI Materials] - Graded and anisotropic porous materials for broadband and angular maximal acoustic absorption, T. Cavalieri, J. Boulvert, G. Gabard, V. Romero-García, M. Escouflaire, J. Regnard, and J.-P. Groby

[2019 - Applied Acoustics] - Acoustic modeling of micro-lattices obtained by additive manufacturing, J. Boulvert, J. Costa-Baptista, T. Cavalieri, M. Perna, E. R. Fotsing, V. Romero-García, G. Gabard, A. Ross, J. Mardjono, and J.-P. Groby

[2019 - Journal of the Acoustical Society of America] - Acoustic wave propagation in effective graded fully anisotropic fluid layers, T. Cavalieri J. Boulvert, L. Schwan, G. Gabard, V. Romero-García, J.-P. Groby, M. Escouflaire, and J. Mardjono

[2019 - Journal of Applied Physics] - Optimally graded porous material for broadband perfect absorption of sound, J. Boulvert, T. Cavalieri J. Costa-Baptista, L. Schwan, V. Romero-García, G. Gabard, E. R. Fotsing, A. Ross, J. Mardjono, and J.-P. Groby

[2019 - Journal of Applied Physics] - General method to retrieve all effective acoustic properties of fully-anisotropic fluid materials in three dimensional space, A. Terroir, L. Schwan, T. Cavalieri, and J.-P. Groby

[2018 - Applied Acoustics] - Three-dimensional multiresonant lossy sonic crystal for broadband acoustic attenuation: Application to train noise reduction, T. Cavalieri, A. Cebrecos, J.-P. Groby, and V. Romero-García


Oral communications

[2023] - Symposium on the Acoustics of Poro-Elastic Materials (Sorrento, Italy)

[2023] - Forum Acusticum (Torino, Italy)

[2022] - Symposium on Acoustic Metamaterials (Nîmes, France)

[2022] - Congrès Francais d'Acoustique (Marseille, France)

[2021] - Symposium on the Acoustics of Poro-Elastic Materials, Online

[2020] - Forum Acusticum, Online

[2020] - UKAN Physical Acoustics SIG Workshop on 3D printing of porous sound absorbers, Online

[2019] - Symposium on Acoustic Metamaterials (Ischia, Italy)

[2018] - Symposium on Acoustic Metamaterials (Xàtiva, Spain)

[2018] - Franco-Chinese Acoustic Conference (Le Mans, France)

[2018] - Congrès Francais d'Acoustique (Le Havre, France)


Poster sessions

[2023] - GDR Ondes (Marseille, France)

[2020] - RAmDAM Days (Le Mans, France)

[2019] - GDR Ondes (Gif sur Yvette, France)

[2017] - GDR Meta (Marseille, France)


Invited talks

[2024] - Pint Of Videogames - Music, sound effects, and audio rendering in videogames (Le Mans, France)

[2024] - RAmDAM Days - Music, sound effects, and audio rendering in videogames (Le Mans, France)

[2024] - RAmDAM Days - Round table on R&D in industry (Le Mans, France)

[2023] - COST - DENORMS: for the future of noise control (Brussels, Belgium)

[2023] - COST Academy - Sustainability of actions (Brussels, Belgium)

[2020] - EMPA Lab Seminar - Metaporous 3D-printed structures (Zürich, Switzerland)

[2020] - UKAN Physical Acoustics SIG Workshop on 3D printing of porous sound absorbers (Online)


Scientific refereeing

Applied Acoustics

Journal of the Acoustical Society of America

Physical Letters A

Journal of Vibration and Control
Student supervision

[2024] - François Dumain, Master intern, LAUM UMR CNRS 6613 and L-Acoustics, Le Mans, France

[2024] - Valentin Renard & Lucas Mouyal, Master project, LAUM UMR CNRS 6613, Le Mans, France

[2023] - Lino Morin-Pauletto, Master intern, LAUM UMR CNRS 6613, Le Mans, France

[2023] - Nicolas Alejandro Herrera Leon, Bachelor intern, Empa, Zürich, Switzerland

Teaching

Courses & Practicals

[2023] - Scientific illustrations and vector graphics within LaTeX - Lab Workshop, France

[2023] - Forum Acusticum Training School, Politecnico di Torino, Torino, Italy

[2023] - Scientific illustrations and vector graphics within LaTeX - Lib4RI Workshop, Switzerland

[2021] - Master courses, Acoustics of porous media, Le Mans University, France

[2020] - Master courses, Acoustics of porous media, Le Mans University, France

[2019] - DENORMS Training School 5, Óbuda University, Budapest, Hungary

Volunteering

[2024-Present] - President of Pianoctambule

[2019-2021] - Board member of the Young Acousticians Network

[2019-2024] - Co-chair of Young Researchers in Acoustic Metamaterials

[2017-present] - Volunteer for the organisation of international workshops/conferences

[2012-present] - Member of Réseau Amical des Acousticiens du Mans

Education

Master of Science, Research in Acoustics

Le Mans Université
Validation of a 2D-axisemytric PML model for FEM
Application to the acoustic input impedance of a horn

Main skills:

  • Audio Signal Processing
  • Mechanics
  • Finite Element Method
  • Non-Destructive Testing
  • Vibroacoustics
September 2015 - July 2017

Bachelor of Engineering Science

Le Mans Université
Study of a thermal demonstrator of string's harmonic oscillations
Influence on the directivity of amplitude windowing on a handmade 7-way line array

Mains skills:

  • Electroacoustics
  • Algorithms & MatLab
  • Specral Analysis
  • Signal Processing
  • Computer science
  • Optics
  • Acoustics
September 2012 - June 2015

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Théo Cavalieri, last update August 2022.