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Variable stiffness composites (VSC) derived from additive manufacturing (AM) are fundamental for applications requiring lightness and high performance. VSCs are obtained by placing the reinforcement ... Analysis and modelling of 3D variable stiffness composites produced by additive manufacturing, taking account the specific features of the process
Modélisation multiphysique de l’endommagement à long terme de matériaux fibreux sous diverses sollicitations variables (hygromécanique)
Durée de Vie et fiabilité des éléments structuraux bois sous environnement climatique variable – Diagnostic – Maintenance
, is characterized by several benefits: 1) the number of design variables is unrelated to the number of elements; 2) the optimized topology is described by means of a pure geometric entity and does not depend upon
fonctionnelle sont également introduits. __________________________________________________________________ Dear All, I have the honor of inviting you to the public defense of my thesis entitled: Geometrical ... Sujet de la thèse : Allocation et optimisation de tolérances par des polyédres prismatiques Subject : Geometrical tolerance allocation and optimization using the prismatic polyhedral approach
the cumulative stack-up of geometric variations inside any mechanical system we need to compute Minkowski sums and intersections of sets of contraints modelled by polytopes in R6. As a consequence, we developped
PAd project is an original research program in tolerance modeling and simulation. This project aims at the representation complex phenomena through an approach that adaptively integrates data from geometric
of the aeronautical field, and variable-stiffness composite structural components, characterised by a point wise variation of the macroscopic mechanical properties over the laminate surface. Concerning the formers
direct observability excludes in a sense the introduction of internal variables because – at least in their standard interpretation – they are just “entities” that measure the removal from thermodynamical
’obtenir spatialement, grâce à l’utilisation d’une méthode d’homogénéisation numérique et d’un métamodèle basé sur les hypersurfaces Non-Uniform Rational Basis-Spline (NURBS), les propriétés hétérogènes, variables et