Felipe Pires

University of Antwerp, Department of Physics, Faculty Member

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Mechanical engineering with large experience in the field of biomechanics. Among other topics, the ones I am most interested in are the Finite-Element-Method to perform simulations and data processing on biological tissues and the use of Digital Image Correlation techniques to measure full-field displacement data.

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Esteban Ferrer

Universidad Politécnica de Madrid

Adam M Croom

Case Western Reserve University

Iolanda Craifaleanu

Technical University Of Civil Engineering, Bucharest

Tuomas Eerola

Durham University

Danielle Moreau

The University of New South Wales

Mikail F Lumentut

National Taiwan University

Vania V Estrela

UFF - Universidade Federal Fluminense

Kiran Dasari

University of Illinois at Urbana-Champaign

rudolph bauer

Washington Center for Consciousness Studies

José Augusto Mannis

Universidade Estadual de Campinas

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Papers by Felipe Pires

A single-ossicle ear: Acoustic response and mechanical properties measured in duck

by Felipe Pires and Joris Dirckx

Hearing Research, 2015

To date, the single-ossicle avian middle ear (ME) is poorly understood, despite its striking rese... more To date, the single-ossicle avian middle ear (ME) is poorly understood, despite its striking resemblance to the design of many currently used ossicular replacement prostheses. This study aims to improve comprehension of this system. The acoustic response and the mechanical properties of the mallard middle ear were studied by means of optical interferometry experiments and finite element (FE) simulations. A finite element model was constructed based on μCT data and validated using the experimental results. Stroboscopic holography was used to measure the full-field displacement of the tympanic membrane (TM) under acoustic stimulation, and the transfer function was obtained with laser Doppler vibrometry. A sensitivity analysis concluded that the most influential parameters for ME mechanics are the elasticity of the TM, the extracolumella (the cartilaginous part of the columella) and the annular ligament of the columellar footplate. Estimates for the Young&amp;amp;#39;s modulus of the TM were obtained by iteratively updating the FE model to match experimental data. A considerable inter-individual variability was found for the TM&amp;amp;#39;s elasticity. Comparison of the experimental results and the optimized FE model shows that, similar to the human middle ear, damping needs to be present in the TM to describe the specific spatial and frequency dependent vibrations of the TM. In summary, our results indicate which mechanical parameters are essential to the good functioning of the avian ME and provide a first estimation of their values.

On material properties and damping models for the dynamic modeling of the human middle ear by means of the Finite Element Method

by Felipe Pires and Diego Arellano

The Journal of the Acoustical Society of America, 2015

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IUTAM Symposium on Advances in Biomechanics of Hearing Sensitivity analysis of material properties on a human middle ear model based on the Finite Element Method

by S. Paul, J. Cordioli, and Felipe Pires

To assist in the development of implantable hearing devices and better understand the dynamic beh... more To assist in the development of implantable hearing devices and better understand the dynamic behavior of the middle ear, a Finite Element model containing the complete ossicular chain, tym-panic membrane, all ligaments and tendons has been created. The main purpose of the current work is to evaluate the sensitivity of the system dynamics with respect to the material properties of the middle ear componentes, i.e., the Young's moduli E, density ρ and damping.

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A single-ossicle ear: Acoustic response and mechanical properties measured in duck

by Felipe Pires and Joris Dirckx

Hearing Research, 2015

On material properties and damping models for the dynamic modeling of the human middle ear by means of the Finite Element Method

by Felipe Pires and Diego Arellano

The Journal of the Acoustical Society of America, 2015

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IUTAM Symposium on Advances in Biomechanics of Hearing Sensitivity analysis of material properties on a human middle ear model based on the Finite Element Method

by S. Paul, J. Cordioli, and Felipe Pires

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