Thoracic response targets for a computational model: a hierarchical approach to assess the biofidelity of a 50th-percentile occupant male finite element model

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Poulard, David¹; Kent, Richard W.¹; Kindig, Matthew²; Li, Zuoping¹; Subit, Damien¹

Thoracic response targets for a computational model: a hierarchical approach to assess the biofidelity of a 50th-percentile occupant male finite element model

J Mech Behav Biomed Mater. May 2015;45:45-64

©2015 Elsevier Ltd. All rights reserved.

Affiliations

¹Center for Applied Biomechanics, University of Virginia, Charlottesville, VA, USA

²RR&D Center of Excellence for Limb Loss Prevention and Prosthetics Engineering, Department of Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
Abstract and keywords

Current finite element human thoracic models are typically evaluated against a limited set of loading conditions; this is believed to limit their capability to predict accurate responses. In this study, a 50th-percentile male finite element model (GHBMC v4.1) was assessed under various loading environments (antero-posterior rib bending, point loading of the denuded ribcage, omnidirectional pendulum impact and table top) through a correlation metric tool (CORA) based on linearly independent signals. The load cases were simulated with the GHBMC model and response corridors were developed from published experimental data. The model was found to be in close agreement with the experimental data both qualitatively and quantitatively (CORA ratings above 0.75) and the response of the thorax was overall deemed biofidelic. This study also provides relevant corridors and an objective rating framework that can be used for future evaluation of thoracic models.

Keywords: Biomechanics; Thorax; Simulation; Evaluation; Corridor; Biofidelity; Impact
Links

DOI: 10.1016/j.jmbbm.2015.01.017

PubMed: 25681717

WoS: 000352665100005
History

Received: 2014-10-14

Revised: 2015-01-20

Accepted: 2015-01-21

Online: 2015-01-31

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