Papers by Dominique Perreux
Journal de Physique IV (Proceedings), 2002
On présente une synthèse de travaux destinée au développement d'un outil de dimensionnement ... more On présente une synthèse de travaux destinée au développement d'un outil de dimensionnement des structures composites stratifiées. La construction de cet outil repose sur un ensemble de quatre grands éléments: une modélisation au niveau du pli élémentaire, une modélisa tion permettant le calcul de la structure, l'identification des paramètres et en finale la méthode de calcul fiabiliste. On présente chacun de ces éléments en soulevant les hypothèses et difficultés particulières. On discute également les schémas et les algorithmes numériques utiles à la construction de cet outil.
Journal de Physique IV (Proceedings), 2002
On présente une synthèse de travaux destinée au développement d'un outil de dimensionnement ... more On présente une synthèse de travaux destinée au développement d'un outil de dimensionnement des structures composites stratifiées. La construction de cet outil repose sur un ensemble de quatre grands éléments: une modélisation au niveau du pli élémentaire, une modélisa tion permettant le calcul de la structure, l'identification des paramètres et en finale la méthode de calcul fiabiliste. On présente chacun de ces éléments en soulevant les hypothèses et difficultés particulières. On discute également les schémas et les algorithmes numériques utiles à la construction de cet outil.
Composites Science and Technology, 2001
This paper presents a method for determining safety factors which must be taken into account when... more This paper presents a method for determining safety factors which must be taken into account when designing laminates for long-term applications. The method requires two steps: the first is a behavioral model able to predict time-dependent phenomena, and the second is a reliability method. The meso/macro approach is used in the behavioral model. This paper presents a damaged elasto-viscoplastic model able to predict the behavior of a layer made of a polymer reinforced with unidirectional fibers. This model requires a non-linear laminate theory which provides the response of laminate structures. The method for calibrating safety factors is based on the first-order reliability method. A description of the behavioral model in this method is presented. Finally, as a working example, the design of filament-wound pipe for fluid transportation is presented. A functional criterion is introduced to prevent leakage. The effect of material parameters is analyzed.
Composites Science and Technology, 2001
This paper presents a method for determining safety factors which must be taken into account when... more This paper presents a method for determining safety factors which must be taken into account when designing laminates for long-term applications. The method requires two steps: the first is a behavioral model able to predict time-dependent phenomena, and the second is a reliability method. The meso/macro approach is used in the behavioral model. This paper presents a damaged elasto-viscoplastic model able to predict the behavior of a layer made of a polymer reinforced with unidirectional fibers. This model requires a non-linear laminate theory which provides the response of laminate structures. The method for calibrating safety factors is based on the first-order reliability method. A description of the behavioral model in this method is presented. Finally, as a working example, the design of filament-wound pipe for fluid transportation is presented. A functional criterion is introduced to prevent leakage. The effect of material parameters is analyzed.
Reliability Engineering [?] System Safety
This paper presents damage strength optimization of laminates using a reliability-based method. T... more This paper presents damage strength optimization of laminates using a reliability-based method. Two complementary analyses are developed: the first is a mechanical analysis of damage behavior using a thermodynamics framework that determines the failure criterion; the second is a reliability method which takes not only randomness, but also statistical uncertainties into account for failure probability calculation. This method is based on a first order reliability method that requires the resolution of a constrained problem of optimization. To solve this problem, a hybrid algorithm, combining evolutionary computation techniques with deterministic procedure is presented. Filamentwound pipe optimization under pressure is discussed as a working example. ᭧
Résumé Avant tout pédagogique & de recherche, ce livre a pour but de sensibiliser le lecteur aux ... more Résumé Avant tout pédagogique & de recherche, ce livre a pour but de sensibiliser le lecteur aux nouveaux enjeux du Développement Durable en lui apportant les connaissances nécessaires pour l'utilisation et la valorisation des ressources naturelles (argiles et fibres végétales) dans l'élaboration des produits et matériaux de construction innovants à faible impact carbone; ceci dans une démarche écobénéficiaire conciliant les traditions artisanales d'utilisation des argiles et des fibres naturelles (poterie, art, vannerie, corderie...) et les techniques modernes de conception d'innovation et de construction respectueuses de la santé humaine et de l'environnement: facteur important pour les marchés mergents des pays en voie de développement où ces ressources sont abondantes et disponibles.
This paper presents damage strength optimization of laminates using a reliabilitybased method. Tw... more This paper presents damage strength optimization of laminates using a reliabilitybased method. Two complementary analyses are developed: The first is a mechanical analysis of damage behavior using a thermodynamics framework which determines the failure criterion; the second is a reliability method which takes not only randomness, but also subjective uncertainties into account for failure probability calculation. This method, based on the First Order Reliability Method, requires the resolution of a constrained problem of optimization. To solve this problem, a hybrid algorithm, combining evolutionary computation techniques with deterministic procedure is presented. Filament-wound pipe optimization under pressure is discussed as a working example.
Polymer Testing, 2014
Syntactic foams, used in submersibles and in pipelines for deep sea oil wells, must be resistant ... more Syntactic foams, used in submersibles and in pipelines for deep sea oil wells, must be resistant to the severe conditions of the deep sea environment. As these foams will be in service for at least 20 years, their qualification testing is crucial. However, their mechanical characterization under real conditions of use is a challenge. In deep sea, the main loading is hydrostatic compression, however there is no standard procedure for testing material under pure hydrostatic pressure. The aim of this paper is to present a new characterization technique based on buoyancy loss measurement under hydrostatic pressure. To validate the method, two different syntactic foams (one brittle and one ductile) have been tested. Their behaviours under hydrostatic pressure have been followed by the proposed technique. The results from this innovative characterization technique have been compared to those of traditional uniaxial compression tests performed on the same materials.
Reliability Engineering & System Safety, 2000
Materials Letters, 2004
Electrical boundary conditions influence the nonlinear electromechanical behavior of ferroelectri... more Electrical boundary conditions influence the nonlinear electromechanical behavior of ferroelectric materials. In this study, a hard and a soft PZT are tested under tensile loading in short and open circuit. Depolarization of the specimen or evolution of the electric field due to the piezoelectric effect is recorded. Nonlinear stress -strain curves are greatly affected by the electric field which appears in open circuit and reduces ferroelastic domain switching. D
Mecanique & Industries - MEC IND, 2002
Cette étude concerne le développement de transducteurs piézocomposites destinés au contrôle de fo... more Cette étude concerne le développement de transducteurs piézocomposites destinés au contrôle de forme de structures. Deux technologies de fabrication de piézocomposites à connectivité 0-3 sont présentées. La première est basée sur l'utilisation de la force centrifuge, la seconde est un procédé de moulage sous pression. L'étude de deux résines et plusieurs poudres piézocéramiques permet de comparer les propriétés diélectriques et piézoélectriques des échantillons fabriqués et de donner ainsi le domaine de validité des deux technologies utilisées. Les valeurs expérimentales obtenues sont comparées avec des modèles issus de la littérature. 2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserved.
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Papers by Dominique Perreux