Crack area was meshed with a higher number of smaller elements. Cavities were modelled only in the estimated crack area to avoid a high number of degrees of freedom. Micro computed tomography images of compact-tension samples machined from a 19 and an 81 years old donor were used to generate Finite Element meshes consisting of linear tetrahedrons via Mimics. In this study, the ABAQUS extended Finite Elements Method (xFEM) was applied to simulate the crack propagation in compact bone samples using the quadratic nominal stress as crack criterion. The Finite Element method offers the opportunity to determine the individual contribution of a parameter by changing single parameters. ![]() The influence of the different parameters affecting bone quality is not well understood. Due to changes in the bone quality during ageing the fracture risk increases.
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