Publicaciones

• Article dans une revue

Evaluation of shear piezoelectric coefficients by a bimorph cantilever technique for extruded and oriented poly( l ‐lactide) films

Mohamed Aymen Ben Achour, Cédric Samuel, Mohamed Rguiti, Sophie Barrau, Christian Courtois, Marie‐france Lacrampe

Uniaxially stretched poly(l-lactide) (US-PLA) films display shear piezoelectric properties of interests for smart applications. However, the measurement of these properties is quite challenging and a simple technique based on bimorph cantilevers is here used. This technique is validated with...

• Communication dans un congrès

Modeling complex mechanical computer codes with functional input via Gaussian processes

Andrés F. López-Lopera, Franck Massa, Isabelle Turpin, Nicolas Leconte

Surrogate models based on Gaussian processes (GPs) have been successfully used as a complement of costly-to-evaluate complex computer codes. They are capable to provide accurate predictions with confident intervals but require fewer costs (in both time and resources). Here, we focus on a class of...

The 43th Ibero-Latin American Congress on Computational Methods in Engineering (CILAMCE), Nov 2022, Foz do Iguaçu, Brazil. ⟨hal-03882473⟩

• Pré-publication, Document de travail

Discrete Gagliardo-Nirenberg inequality and application to the finite volume approximation of a convection-diffusion equation with a Joule effect term

Caterina Calgaro, Clément Cancès, Emmanuel Creusé

We prove the convergence of a finite volume method for the approximation of a convection-diffusion equation involving a Joule effect term. The convergence proof relies on compactness arguments and on a priori estimates building on a discrete version of the second-order Gagliardo-Nirenberg...

2022. ⟨hal-03881410⟩

• Communication dans un congrès

Modeling complex mechanical computer codes with functional inputs via Gaussian processes

Andrés F. López-Lopera, Franck Massa, Isabelle Turpin, Nicolas Leconte

Surrogate models based on Gaussian processes (GPs) have been successfully used as a complement of costly-to-evaluate complex computer codes. They are capable to provide accurate predictions with confident intervals but require fewer costs (in both time and resources). Here, we focus on a class of...

XLIII Ibero-Latin American Congress on Computational Methods in Engineering, Nov 2022, Foz do Iguaçu, Paraná, Brazil. ⟨hal-03781181⟩

• Pré-publication, Document de travail

Geography of bilinearized Legendrian contact homology

Frédéric Bourgeois, Damien Galant

We study the geography of bilinearized Legendrian contact homology for closed, connected Legendrian submanifolds with vanishing Maslov class in 1-jet spaces. We show that this invariant detects whether the two augmentations used to define it are DGA homotopic or not. We describe a collection of...

2022. ⟨hal-03842142⟩

• Article dans une revue

Water-Based Synthesis of Zr6-Based Metal–Organic Framework Nanocrystals with Sulfonate Functions: Structural Features and Application to Fructose Dehydration

Bakytzhan Yeskendir, Priscilla Magalhaes de Souza, Pardis Simon, Robert Wojcieszak, Christian Courtois, Yannick Lorgouilloux, Sebastien Royer, Jean-Philippe Dacquin, Jérémy Dhainaut

A series of zirconium-based metal−organic framework (MOF) nanocrystals (95−211 nm) displaying sulfonate functions (UiO-66-SO3H) was prepared in N,N-dimethylformamide (DMF) - the conventional solvent - and water, and their physicochemical properties were thoroughly investigated. In particular, X-ray...

ACS Applied Nano Materials, 2022, ACS Applied Nano Materials, ⟨10.1021/acsanm.2c02916⟩. ⟨hal-03794329⟩

• Article dans une revue

Post-infiltration to improve the density of binder jetting ceramic parts

Qirong Chen, Enrique Juste, Marie Lasgorceix, Guillaume Lefebvre, Christophe Tenailleau, Benjamin Duployer, David Grossin, Fabrice Petit, Anne Leriche

Journal of the European Ceramic Society, 2022, 42 (15), pp.7134-7148. ⟨10.1016/j.jeurceramsoc.2022.08.005⟩. ⟨hal-03889846⟩

• Pré-publication, Document de travail

Do Shape Memory Alloy cables restrain the vibrations of girder bridges? -A mathematical point of view

Virginie Régnier

We study the energy decay of a damped Euler-Bernoulli beam which is subject to a pointwise feedback force representing a Shape Memory Alloy (SMA) cable. The problem we consider is that of [13] but, for simplicity, our modelization does not take into account the additional stiffness term they...

2022. ⟨hal-03722113⟩

• Pré-publication, Document de travail

Goal-oriented error estimation based on equilibrated flux reconstruction for the approximation of elliptic and parabolic problems

Emmanuel Creusé, Serge Nicaise, Zuqi Tang

We present unified frameworks for goal-oriented estimates for elliptic and parabolic problems that combine the dual-weighted residual method with equilibrated flux reconstruction. These frameworks allow to analyze simultaneously different approximation schemes for the space discretization of the...

2022. ⟨hal-03719266⟩

• Article dans une revue

Morphological, structural, electrical, and piezoelectric analysis of hydrothermally grown ZnO nanowires on various substrates

Abderrahmane Hamdi, Ahmad Hamieh, Mervat Alamri, Karim Dogheche, M.M. Saj Mohan, Rachel Desfeux, Denis Remiens, El Hadj Dogheche

In this present work, we have successfully fabricated a piezoelectric structure based on ZnO nanowires (ZnO NWs) using a simple, low cost and environmentally friendly hydrothermal method. This structure forms the basis to fabricate vertically integrated nanogenerator device. This paper attempts to...

Surfaces and Interfaces, 2022, 31, pp.102103. ⟨10.1016/j.surfin.2022.102103⟩. ⟨hal-03694897⟩