Browse Publications Technical Papers 2011-01-0018
2011-04-12

Improving the Accuracy of Hybrid III-50 th Percentile Male FE Model 2011-01-0018

Accurate prediction of the responses from the anthropomorphic test devices (ATDs) in vehicle crash tests is critical to achieving better vehicle occupant performances. In recent years, automakers have used finite element (FE) models of the ATDs in computer simulations to obtain early assessments of occupant safety, and to aid in the development of occupant restraint systems.
However, vehicle crash test results have variation, sometimes significant. This presents a challenge to assessing the accuracy of the ATD FE models, let alone improving them. To resolve this issue, it is important to understand the test variation and carefully select the target data for model improvement.
This paper presents the work carried out by General Motors and Humanetics Innovative Solutions (formerly FTSS) in a joint project, aimed at improving the FE model of the Hybrid III-50 ATD (HIII-50) v5.1. Numerous component and sled tests were conducted, major sources of variation were identified, and the FE model of the Hybrid III 50 th percentile was improved in the new version v7.0.

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