Material Parameter Sensitivity of Predicted Injury in the Lower Leg

Report No. ARL-TR-7310
Authors: Megan L Lynch; Samantha LWozniak; Adam Sokolow
Date/Pages: June 2015; 66 pages
Abstract: 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.
Distribution: Approved for public release
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Last Update / Reviewed: June 1, 2015