  Finite element analysis is one of the most used tool for studying femoral
neck fracture. Nerveless, consensus concerning either the choice of material
characteristics, damage law and /or geometric models (linear on nonlinear)
still remains unreached. In this work, we propose a numerical quasi-brittle
damage model to describe the behavior of the proximal femur associated with two
methods to evaluate the Young modulus. 8 proximal femur finite elements models
were constructed from CT scan data (4 donors, 3 men; 1 woman). The results
obtained from the numerical computations showed a good agreement between the
numerical curves (load-displacement) and the experimental ones. The computed
fracture loads were very close to the experimental ones (R 2 =0.825, Relative
error =6.49%). The damage patterns were similar to those observed during the
failure during sideway fall experimental simulation. Finally, a comparative
study based on 32 simulations, using a linear and nonlinear mesh has led to the
conclusion that the results are improved when a nonlinear mesh is used. In
summary, the numerical quasi-brittle model presented in this work showed its
efficiency to find the experimental values during the simulation of the side
fall.
