A 3D fluid-solid interaction model of the air puff test in the human cornea

作者: Andrea Montanino , Maurizio Angelillo , Anna Pandolfi

DOI: 10.1016/J.JMBBM.2019.02.030

关键词: Finite element methodMechanicsIsotropyAir puffDiscretizationBoundary value problemFluid solid interactionNonlinear systemCorneaComputer scienceMechanics of MaterialsBiomaterialsBiomedical engineering

摘要: We present a numerical model of contactless test commonly used to assess the biomechanics human cornea. The test, consisting in rapid air jet applied anterior surface cornea, is controversial. Although numerous studies documented literature have not been able yet clarify its relevance as diagnostic tool, has potential be combined with inverse analysis procedures characterize parameters models With final goal employing puff advanced material identification algorithms, here we propose cornea standard finite elements and fluids filling chamber eye meshfree discretization. interaction between moving deforming accounted for by modifying interface boundary conditions both fluid solid. proposed represents first fully 3D example an aqueous-cornea fluid-solid which uses robust approach fluid. restrict our scope isotropic nonlinear materials, results confirm undeniable importance including internal simulation test. Thus stands procedural paradigm mechanical

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