Implementation of a Strain Rate Dependent Human Bone Model

Strain rate dependency of mechanical properties of cortical bone has been well demonstrated in literature studies. Nevertheless, the majority of these studies have been done on nonhuman bone and at lower magnitudes of strain rates. The need for a mathematical model which can describe the mechanical behavior of bone at lower strain rates as well as higher ones is essential. A human finite element model THUMS (Total Human Model for Safety) [1], developed by Toyota R&D Labs and the Wayne State University, USA has been applied for this study. This work proposes an isotropic elastic-plastic material model of cortical bone where rate effects have also been considered.