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Oblique Loading in Post Mortem Human Surrogates from Vehicle Lateral Impact Tests using Chestbands. Stapp Car Crash J 2015 Nov;59:1-22 PMID: 26660738

Abstract

While numerous studies have been conducted to determine side impact responses of Post Mortem Human Surrogates (PMHS) using sled and other equipment, experiments using the biological surrogate in modern full-scale vehicles are not available. The present study investigated the presence of oblique loading in moving deformable barrier and pole tests. Threepoint belt restrained PMHS were positioned in the left front and left rear seats in the former and left front seat in the latter condition and tested according to consumer testing protocols. Three chestbands were used in each specimen (upper, middle and lower thorax). Accelerometers were secured to the skull, shoulder, upper, middle and lower thoracic vertebrae, sternum, and sacrum. Chestband signals were processed to determine magnitudes and angulations of peak deflections. The magnitude and timing of various signal peaks are given. Vehicle accelerations, door velocities, and seat belt loads are also given. Analysis of deformation contours, peak deflections, and angulations indicated that the left rear seated specimen were exposed to anterior oblique loading while left front specimens in both tests sustained essentially pure lateral loading to the torso. These data can be used to validate human body computational models. The occurrence of oblique loading in full-scale testing, hitherto unrecognized, may serve to stimulate the exploration of its role in injuries to the thorax and lower extremities in modern vehicles. It may be important to continue research in this area because injury metrics have a lower threshold for angled loading.

Author List

Yoganandan N, Humm JR, Pintar FA, Arun MW, Rhule H, Rudd R, Craig M

Authors

Mike Winifred Jimbry Arun PhD Assistant Professor in the Neurosurgery department at Medical College of Wisconsin
Frank A. Pintar PhD Professor in the Biomedical Engineering department at Medical College of Wisconsin
Narayan Yoganandan PhD Professor in the Neurosurgery department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Abbreviated Injury Scale
Acceleration
Accidents, Traffic
Automobiles
Cadaver
Humans
Models, Biological
Seat Belts
Thoracic Injuries



View this publication's entry at the Pubmed website PMID: 26660738
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