. F. Fig, 3 ? La réalisation d'un empilement à partir d'une tomographie maillée d'une céramique poreuse . Les porosités macroscopiques sont réalisées à l'aide d'agents porogènes, les porosités microscopiques sont dues à l'agencement des particules entre elles A) Image d'une céramique poreuse réalisée sous le logiciel MGPOST B) Le maillage réalisé à partir de la tomographie d'une céramique poreuse. C) L'empilement de sphères en contact réalisé via le maillage éléments finis de la tomographie

. Dans-un-premier and . Temps, partir de la microstructure scannée, d'aboutir à un empilement de sphères avec des propriétés afin que la porosité microscopique soit respectée entre l'échantillon numérique et la céramique Pour réaliser l'exemple présentée en figure F.3-B il a été nécessaire de récupérer le maillage d'une tomographie (voir la Fig. F.3-B), puis d'exécuter l'algorithme géométrique développé à partir de ce maillage en indiquant la compacité la plus faible et les zones de compacités plus élevées. Pour poursuivre l'étude sur la fissuration de ces biomatériaux, une fois que l'empilement numérique de sphères est généré (voir la Fig, la calibration d'une loi de contact élastique cohésive via différentes sortes d'essais simples devra être faite

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