Buckling analysis of human Tibia and Fibula bones

In this research, the material properties obtained from experimental stress-strain diagrams are used to investigate the buckling behavior of the Tibia and Fibula bones subjected to axial load, applying the Finite Element Method. While the experimental tests performed by authors show that the elastic modulus varies through the length of these bones, in most analysis represented in literature search, the elastic modulus is assumed to be constant. Since, the elastic modulus has significant effect on critical buckling load, two different methods are used in Finite Element Modelling of them to obtain the effect of elastic modulus variation through the length of the Tibia and Fibula bones. In first method, a constant elastic modulus is applied to the FE model. In second method variable elastic modulus is applied to the same model. The axial compressive deformations and critical buckling loads obtained for each bone applying both models are obtained and compared with each other.