Computational Analysis of Head Impact Response Under Car Crash Loadings

952718

11/01/1995

Event
39th Stapp Car Crash Conference (1995)
Authors Abstract
Content
Computational simulations are conducted for several head impact scenarios using a three dimensional finite element model of the human brain in conjunction with accelerometer data taken from crash test data. Accelerometer data from a 3-2-2-2 nine accelerometer array, located in the test dummy headpart, is processed to extract both rotational and translational velocity components at the headpart center of gravity with respect to inertial coordinates. The resulting generalized six degree-of-freedom description of headpart kinematics includes effects of all head impacts with the interior structure, and is used to characterize the momentum field and inertial loads which would be experienced by soft brain tissue under impact conditions.
These kinematic descriptions are then applied to a finite element model of the brain to replicate dynamic loading for actual crash test conditions, and responses pertinent to brain injury are analyzed. Resultant accelerations and Head Injury Criterion (HIC) values are computed and compared with nontraditional measures of head injury as affected by combinations of rotational and translational kinematics.
Meta TagsDetails
DOI
https://doi.org/10.4271/952718
Pages
14
Citation
DiMasi, F., Eppinger, R., and Bandak, F., "Computational Analysis of Head Impact Response Under Car Crash Loadings," SAE Technical Paper 952718, 1995, https://doi.org/10.4271/952718.
Additional Details
Publisher
Published
Nov 1, 1995
Product Code
952718
Content Type
Technical Paper
Language
English