A system for evaluating head injury or personal protective systems uses instrumented helmets or instrumented dummies to transmit accelerometer readings to a computing system having code to determine impact accelerations. The code reads and interpolates separately for pressure and strain between precomputed simulation results nearest the impact in a database of precomputed head impact model simulation results, then combines these to give a combined result. In embodiments, the precomputed result includes strain on neural tracts, a pressure map, or both strain and pressure map. A method of evaluating an impact includes transmitting accelerometer readings from instrumented helmets or dummies to a computing system upon impact; determining angle and acceleration of the impact from the readings; reading and interpolating between precomputed simulation result in the database of strain and pressure simulation results nearest in angle and acceleration to the impact; and displaying information from the simulation.
MODEL AND APPARATUS FOR PREDICTING BRAIN TRAUMA FROM APPLIED FORCES TO THE HEAD USING PRE-COMPUTED PRESSURE AND STRAIN ATLASES VIA SUPERPOSITION AND INTERPOLATION