A methodology for creating PMHS targets with a two-dimensional standard deviation ellipse tolerance for quantitatively assessing dummy biofidelity

Given a set of well documented PMHS response data (e.g. lateral and oblique thoracic pendulum impacts [2]), the following data processing steps are taken. 1. Calculate the absorbed energy for each subject by integrating the force versus deflection time histories from time zero to maximum deflection. Calculate the mean maximum absorbed energy. In this example force was measured with a load cell and deflection with a chestband [3]. 2. Normalize the chest deflection time histories for each subject to the average maximum chest displacement (average maximum deflection/individual maximum deflection) [4]. 3. Select a maximum time duration suitable for all subjects and interpolate the normalized deflection time histories to the same time base as the force time histories (if necessary). 4. Calculate a revised absorbed energy for each subject using the force and the normalized deflection. 5. Calculate a force scale factor for each subject using absorbed energy (average maximum absorbed energy/revised individual maximum absorbed energy). 6. Normalize the subject forces at each time increment using the force scale factor. 7. Calculate a mean and standard deviation for the normalized deflections at each time increment. 8. Calculate a mean and standard deviation for the normalized forces at each time increment. 9. Plot the mean scaled force versus the mean scaled deflection with a mean standard deviation ellipse at each point.