Pelvic response of a total human body finite element model during simulated under body blast impacts

Weaver, Caitlin M.; Stitzel, Joel D.

Affiliations

¹Biomedical Engineering at Wake Forest University in Winston Salem, NC

²Soldier Protection Sciences Branch at US Army Research Laboratory in Aberdeen Proving Ground, MD, US

Abstract and keywords

Under body Blast (UBB) events seen in theater are the cause of many serious injuries sustained by soldiers in combat zones to the pelvis, spine, and lower extremities. These injuries are often debilitating, resulting in increased healthcare expenses and a reduced quality of life. Injury prediction for UBB events continues to be a challenge due to the limited availability of UBB‐specific test studies and injury criteria.

This study focuses on the pelvic injury response of the 50th percentile male Global Human Body Models Consortium (GHBMC) Finite Element (FE) model. Evaluation of the GHBMC model fidelity and injury response is based on biofidelity targets (corridors) created using pelvis accelerations obtained from experimental testing of UBB‐type loading using post mortem human subjects (PMHS). The FE acceleration data extracted from nodes in the S1 region of the GHBMC pelvis was compared to the S1 experimental biofidelity corridors created from this experimental PMHS test data. The FE S1 acceleration was analyzed with an objective rating method (CORrelation and Analysis, CORA) using these experimental biofidelity corridor curves. The CORA analysis showed good correlation (0.70 or higher) with average scores ranging from 0.841 to 0.808 using FE and experimental data filtered at 1050Hz.

Keywords: finite element model, GHBMC, pelvic injury, under body blast, WIAMan

Links

URL: http://ircobi.org/downloads/irc15/pdf_files/82.pdf

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Cited By (4)

Year	Entry
2017	Arun MWJ, Hadagali P, Driesslein K, Curry W, Yoganandan N, Pintar FA. Biomechanics of lumbar motion-segments in dynamic compression. Stapp Car Crash J. November 2017;61:1-25. SAE 2017-22-0001.
2020	Lei J, Li L, Wang Z, Zhu F. Characterizing strain rate-dependent mechanical properties for bovine cortical bones. J Biomech Eng. September 2020;142(9):091013.
2019	Bosch KEB. Optimization of Underbody Blast Energy-Attenuating Seat Mechanisms Using Modified MADYMO Hybrid III and Human Body Models [PhD thesis]. Detroit, MI: Wayne State University; August 2019.
2019	Somasundaram K. Development of Spine Injury Mechanisms, Response Corridors and Computational Human Model to Assess Mounted Occupant Injury During Underbody Blast Loading [PhD thesis]. Detroit, MI: Wayne State University; August 2019.