Mechanical response of femur bone to bending load using finite element method

Bending load is often encountered in femur bone (thigh bone) particularly in the case of lateral impact. Femur fracture is quite usual in pedestrians. It generally occurs because of bending of femur bone due to lateral impact. In order to prevent fractures in walkers and vehicle passengers from accidents, it is significant to study the bending behavior of femur bone. Femur bone is one of the most commonly fractured bones in human body as it is one of the longest and largest bones. In this work, mechanical response of femur bone to bending load is studied by the help of finite element simulation. For a given critical load, deflection, von Mises stresses and bending stresses have been obtained. For the critical bending moment of 200 N-m, the maximum von Mises stresses reaches up to 131.3 MPa, and the maximum deflection is found to be 1.8 cm. The Von Mises stress must be less than the yield stress of the material; otherwise it could lead to fracture of the bone.