Finite element model development of a child pelvis with optimization-based material identification

Kim, Jong-Eun<sup>1</sup>; Li, Zuoping<sup>2</sup>; Ito, Yasushi<sup>1</sup>; Huber, Christina D.<sup>3</sup>; Shih, Alan M.<sup>1</sup>; Eberhardt, Alan W.<sup>2</sup>; Yang, King H.<sup>3</sup>; King, Albert I.<sup>3</sup>; Soni, Bharat K.<sup>1</sup>

Affiliations

¹Department of Mechanical Engineering, University of Alabama at Birmingham, Hoehn 330B, 1075 13th St. S., Birmingham, AL 35294, USA

²Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA

³Department of Biomedical Engineering, Wayne State University, Detroit, MI 48202, USA

Abstract and keywords

A finite element (FE) model of a 10-years-old child pelvis was developed and validated against experimental data from lateral impacts of pediatric pelves. The pelvic bone geometry was reconstructed from a set of computed tomography images, and a hexahedral mesh was generated using a new octree-based hexahedral meshing technique. Lateral impacts to the greater trochanter and iliac wing of the seated pelvis were simulated. Sensitivity analysis was conducted to identify material parameters that substantially affected the model response. An optimization-based material identification method was developed to obtain the most favorable material property set by minimizing differences in biomechanical responses between experimental and simulation results. This study represents a pilot effort in the development and validation of age-dependent musculoskeletal FE models for children, which may ultimately serve to evaluate injury mechanisms and means of protection for the pediatric population.

Keywords: Pediatric pelvis; Finite element; Hexahedral mesh; Material identification

Links

DOI: 10.1016/j.jbiomech.2009.06.010

PubMed: 19646702

WoS: 000270478000028

History

Accepted: 2009-06-5

Online: 2009-07-30

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Cited By (9)

Year	Entry
2011	Jiang B, Mao H, Wagner C, Cao L, Yang KH. Development of a 10‐year‐old pediatric thorax finite element model validated against cardiopulmonary resuscitation data. In: Proceedings of the 2011 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2011; Krakow, Poland.206-209.
2015	Shen M, Zhu F, Jiang B, Sanghavi V, Fan H, Cai Y, Wang Z, Kalra A, Jin X, Chou CC, Yang KH. Development and a limited validation of a whole‐body finite element pedestrian and occupant models of a 10‐year‐old child. In: Proceedings of the 2015 International IRCOBI Conference on the Biomechanics of Injury. September 9-11, 2015; Lyon, France.672-688.
2016	Morales-Orcajo E, Bayod J, Barbosa de Las Casas E. Computational foot modeling: scope and applications. Arch Comput Methods Eng. September 2016;23(3):389-416.
2014	Kim YH, Kim J-E, Eberhardt AW. A new cortical thickness mapping method with application to an in vivo finite element model. Comput Methods Biomech Biomed Eng. July 2014;17(9):997-1001.
2014	Jiang B, Cao L, Mao H, Wagner C, Marek S, Yang KH. Development of a 10-year-old paediatric thorax finite element model validated against cardiopulmonary resuscitation data. Comput Methods Biomech Biomed Eng. 2014;17(11):1185-1197.
2013	Burkhart TA, Andrews DM, Dunning CE. Finite element modeling mesh quality, energy balance and validation methods: a review with recommendations associated with the modeling of bone tissue. J Biomech. May 31, 2013;46(9):1477-1488.
2020	Salem M. Investigation of Pelvic Bone Fracture Mechanism and Simulated Treatment [PhD thesis]. Edmonton, AB: University of Alberta; 2020.
2011	Dennison CRS. Development and Application of in-Fibre Bragg Grating Contact Force Sensors for Application to the Human Hip [PhD thesis]. University of Victoria; 2011.
2017	Shen M. Development of a Finite Element Pelvis and Lower Extremity Model With Growth Plates for Pediatric Pedestrian Protection [PhD thesis]. Detroit, MI: Wayne State University; August 2017.