Toyota has developed the Total Human Model for Safety (THUMS) as a tool for studying the effects of vehicle crashes on the human body. THUMS has been thoroughly validated on a component-by-component level, but there has been limited study of THUMS at the “whole body” level. To better understand the capabilities of THUMS models in capturing the effects of complex crash scenarios, the University of Virginia and Toyota have teamed up to validate THUMS against a series of controlled impact tests performed on Post-Mortem Human Subjects (PMHS).
A Finite Element (FE) model will be created of the test environment based on controlled front- and side-sled impact tests the University of Virginia has previously performed on PMHS. The frontal impact tests will consist of standard and force limiting safety belt tests, while the side impact tests will include rigid wall tests and tests with airbags.
THUMS will then be added to the test environment, with scaling performed to match PMHS properties. The simulation will be run, and comparison of kinematics and injury patterns between THUMS and PMHS will be performed.
The project will run for two-and-a-half years. In the first year, researchers will prepare to run the simulation, develop sled models, and analyze the test data to determine response corridors. They will then add THUMS to the sled model and build virtual sensors in the THUMS model corresponding to the actual sensors used in the PMHS tests.
In the final year and a half, researchers will run the simulation and comparison of THUMS to PMHS. Results will be shared as technical papers for public review.