Abstract Summary
The objective of our study is to develop an XFEM model of cancellous bone specimen in 3D that is capable of accurately predicting the onset and propagation of cracks under mechanical loading. In order to do so, the micro-CT scan data of cancellous bone was converted into 3D geometry. Material properties of trabecular tissue and other XFEM parameters were assigned to the model to quantify the stiffness and strength along longitudinal direction. The results revealed there is no difference in stiffness between tension and compression. Also, the strength and failure strain are higher in compression than tension. The results were found to be in a good agreement with literature. XFEM model in 3D is capable of simulating the failure and fracture in cancellous bone. Also, this model can be a valuable tool to predict the mechanical characteristics of cancellous bones.
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