Noëlie Di Cesare

• Professor (Associate) at University of Southern Brittany

In this study, the hyper-viscoelastic behavior of elastomeric specimen is identified, from only one heterogeneous test. The test consists on stretching a cruciform specimen in two perpendicular directions and holding at the stretched level to characterize relaxation. The constitutive model is based on the Yeoh model and the Prony series to describe...

In this work, the identification of Hyper-viscoelastic models of elastomers is performed from only one heterogeneous relaxation experiment performed with a cruciform specimen. The identification procedure is based on the so-called Finite Element Model Updating (FEMU) technique. Even though the experiment induces heterogeneous kinematic fields, only...

In this study, the Finite-Element Model Updating (FEMU) technique is used to identify hyperelastic parameters from only one heterogeneous test. A residual considering measured and identified stretches as well as the global reaction force of the specimen is built. The originality of this paper is to investigate the feasibility of the resolution of t...

In the present study, a numerical method based on a metaheuristic parametric algorithm has been developed to identify the constitutive parameters of hyperelastic models, by using FE simulations and full kinematic field measurements. The full kinematic field is measured at the surface of a cruciform specimen submitted to equibiaxial tension. The sam...

In the present study, a numerical method based on a metaheuristic parametric algorithm has been developed to identify the constitutive parameters of hyperelastic models, by using FE simulations and full kinematic field measurements. The full kinematic field was measured at the surface of a cruciform specimen submitted to equibiaxial tension. The te...

Leather materials are subjected to various deformation states during their elaboration and their use as a final product. Although the mechanical response of leathers under tension has been studied in the literature for decades, scarce information is available on the nature of their elasticity and more generally on their thermomechanical behavior. I...

Leather materials are able to undergo various strain and stress states during their elaboration process and their use in numerous applications. Although the experimental mechanical response in tension of leathers has been studied in the literature for decades, scarce information is available on the nature of their elasticity and more generally on t...

The Inverse-PageRank-PSO (I-PR-PSO) algorithm, an optimizer based both on the Particle Swarm Optimization (PSO) algorithm and the PageRank algorithm - used by the well known search engine Google - is applied to continuum structural topology optimization. To deal with the classical continuum mechanics problems of the literature, such as checkerboard...

Leather materials undergo various strain and stress states during their elaboration process and their application in numerous different functions. Among the key properties required for such materials, tearing resistance appears as one of the most important. In this paper, the tearing behavior of two types of leather, a grain pigskin leather and a g...

Leather materials are able to undergo various strain and stress states during their elaboration process and their use in numerous applications. Although the experimental mechanical response in tension of leathers has been studied in the literature for decades, scarce information is available on the nature of their elasticity and more generally on t...

L’optimisation offre la possibilité, dans de nombreux domaines, d’améliorer les performances d’un système donné, qu’il soit physique ou mathématique. Depuis quelques décennies, les méthodes d’optimisation metaheuristiques ont fait leurs preuves, notamment dans le domaine de la mécanique.Du grec meta signifiant "un niveau au dessus", les metaheurist...

This paper presents a Particle Swarm Optimization-based topology optimization method for the design of negative permeability dielectric metamaterials.As the electromagnetic metamaterials have some physical properties not available in nature, they have attracted a huge scientific research interest for decades. In fact, electromagnetic metamaterials...

Based on the recent research concerning the PageRank Algorithm used in the famous search engine Google, a new Inverse-PageRank-Particle Swarm Optimizer (I-PR-PSO) is presented in order to improve the performances of classic PSO. The resulted algorithm uses a stochastic Markov chain model to define an intelligent topological structure of the swarm’s...

The thermal residual stresses (TRS) induced in ceramic matrix composites (CMCs) with multi-layered interphases when cooling down from the processing temperature, have a significant influence on the mechanical behavior and lifetime of CMCs. The objective of this work is to minimize the TRS of the unidirectional CMCs with multi-layered interphases by...