Material Parameter Sensitivity of Predicted Injury in the Lower Leg.

摘要

This report documents the extensive work done on the lower leg finite element model, specifically on the sensitivity of injury prediction on linear elastic material parameters that are chosen within a range of values typically used for biological tissues. Using simple criteria, we predict a variety of injuries typically observed in theater. We find a strong dependence of these predicted injuries on the soft tissue properties included in our model. We also report on a potential oversensitivity in our model to predicting talus injuries. We conclude that biological variability in measured material parameters will need to be accounted for in future models.