Abstract
Numerical simulation of fracture healing processes is dependent on reliable material properties of the involved tissues. Published material parameters values show a wide range [Isaksson, 2009], depending on the heterogeneity of the material and on the determination methods (e.g. nanoindentation [Augat, 1998; Leong, 2008] or material testing [Hori, 1982]). Electronic speckle pattern interferometry (ESPI) is able to detect local mechanical deformation in high resolutions from in vitro specimens [Bottlang, 2008; Kirkpatrick, 1998; Shahar, 2007]. This study presents a method to obtain material parameters for the ovine fracture callus tissues by comparison of ESPI deformation data presented by Bottlang et al. [2008], with finite element analysis (FEA) data of the same setup. The target conformity between FE and ESPI data is achieved by applying an optimization procedure to material parameters of the involved tissues.
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