Size effect method application for modeling of human cancellous bone using geometrically exact Cosserat elasticity

作者：Ramezani Hamidreza^*; El Hraiech Amine; Jeong Jena; Benhamou Claude Laurent

来源：Computer Methods in Applied Mechanics and Engineering, 2012, 237: 227-243.

DOI：10.1016/j.cma.2012.05.002

• Size effect method
• Trabecular human bone
• Multi-scale modeling
• Non-linear Cosserat
• Conformal curvature energy density
• 3D-FEM

In the present study, the method of size effect was used to describe the hierarchical multi-scale behavior of trabecular human bone using micro-CT image. The micro-CT images extracted from a 98-year old male patient were used to provide the 3D-model of cancellous bone, which involves one of the most complex natural pore network. The non-linear or so-called geometrically exact Cosserat elasticity including Augmented Lagrangian-Eulerian (ALE) method has been used to handle the multi-scale behavior of trabecular human bone involving size effect in explicit manner. We have chosen the conformal energy density within micro-randomness issue in which the heterogeneous deformations at small scales are inherently sustained.

• 出版日期2012