The goal of this study was to quantify the effect of improving the geometry of a human body model on the accuracy of the predicted kinematics for 4 post‐mortem human subject sled tests. Three modifications to the computational human body model THUMS were carried out to evaluate if subject personification can increase the agreement between predicted and measured kinematics of post‐mortem human subjects in full frontal and nearside oblique impacts. The modifications consisted of: adjusting the human body model mass to the actual subject mass, morphing it to the actual anthropometry of each subject and finally adjustment of the model initial position to the measured position in selected post‐mortem human subject tests.
A quantitative assessment of the agreement between predicted and measured response was carried out by means of CORA analysis by comparing the displacement of selected anatomical landmarks (head CoG, T1 and T8 vertebre and H‐Point).
For all three scenarios, the more similar the human body model was to the anthropometry and posture of the sled tested post‐mortem human subject, the more similar the predictions were to the measured responses of the post‐mortem human subject, resulting in higher CORA score.
|2007||Iwamoto M, Nakahira Y, Tamura A, Kimpara H, Watanabe I, Miki K. Development of advanced human models in THUMS. In: European LS-DYNA Users' Conference. May 29-30, 2007; Gothenburg, Sweden.47-56.|
|2014||Poulard D, Subit D, Donlon J-P, Lessley DJ, Kim T, Park G, Kent RW. The contribution of pre-impact spine posture on human body model response in whole-body side impact. Stapp Car Crash J. November 2014;58:385-422.|
|2002||Wu G, Siegler S, Allard P, Kirtley C, Leardini A, Rosenbaum D, Whittle M, D'Lima DD, Cristofolini L, Witte H, Schmid O, Stokes I. ISB recommendation on definitions of joint coordinate system of various joints for the reporting of human joint motion, I: ankle, hip, and spine. J Biomech. 2002;35(4):543-548.|
|2002||Iwamoto M, Kisanuki Y, Watanabe I, Furusu K, Miki K, Hasegawa J. Development of a finite element model of the total human model for safety (THUMS) and application to injury reconstruction. In: Proceedings of the 2002 International IRCOBI Conference on the Biomechanics of Impact. September 18-20, 2002; Munich, Germany.|
|2010||Lopez-Valdes FJ, Lau A, Lamp J, Riley P, Lessley DJ, Damon A, Kindig M, Kent R, Balasubramanian S, Seacrist T, Maltese MR, Arbogast KB, Higuchi K, Tanji H. Analysis of spinal motion and loads during frontal impacts: comparison between PMHS and ATD. In: 54th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 17-20, 2010; Las Vegas, NV.61-77.|
|2009||Gehre C, Gades H, Wernicke P. Objective rating of signals using test and simulation responses. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.|
|2009||Shaw G, Parent D, Purtsezov S, Lessley D, Crandall J, Kent R, Guillemot H, Ridella SA, Takhounts E, Martin P. Impact response of restrained PMHS in frontal sled tests: skeletal deformation patterns under seat belt loading. Stapp Car Crash J. 2009;53:1-48. SAE 2009-22-0001.|
|2020||Draper D, Shah A, Peldschus S, Stemper BD. Initial validation of a human body model lumbar spine using dynamic compression. In: Proceedings of the 2020 International IRCOBI Conference on the Biomechanics of Injury. 2020; Munich, Germany.213-214.|
|2021||Klein C, González-García M, Weber J, Bosma F, Lancashire R, Breitfuss D, Kirschbichler S, Leitgeb W. A method for reproducible landmark-based positioning of multibody and finite element human models. In: Proceedings of the 2021 International IRCOBI Conference on the Biomechanics of Injury. September 8-10, 2021; Online.477-489.|