Elderly Occupant Human Body Model: Comprehensive Development and Validation for Frontal Impact Scenarios

Abstract Due to changes in structural and material properties, elderly vehicle occupants are at increased risk of injury. Given the current growth of this population, understanding injury mechanisms and designing countermeasures for the elderly population are of utmost importance. Therefore, the objective of the current study was to develop a vehicle occupant human body model representative of the elderly population that can be further used to design countermeasures. To this end, a 75-year-old (75YO) Global Human Body Models Consortium (GHBMC) model was developed by morphing the baseline 50th percentile GHBMC model geometry and material properties to the elderly. The developed elderly model showed a good correlation with elderly experimental responses for thorax impacts, abdomen impacts, and frontal sled tests.