An automated method to morph finite element whole-body human models with a wide range of stature and body shape for both men and women

Kai Zhang, Libo Cao, Abeselom Fanta, Matthew P. Reed, Mark Neal, Jenne Tai Wang, Chin Hsu Lin, Jingwen Hu

Research output: Contribution to journalArticle

Abstract

Field data analyses have shown that small female, obese, and/or older occupants are at increased risks of death and serious injury in motor-vehicle crashes compared with mid-size young men. The current adult finite element (FE) human models represent occupants in the same three body sizes (large male, mid-size male, and small female) as those for the contemporary adult crash dummies. Further, the time needed to develop an FE human model using the traditional method is measured in months or even years. In the current study, an improved regional mesh morphing method based on landmark-based radial basis function (RBF) interpolation was developed to rapidly morph a mid-size male FE human model into different geometry targets. A total of 100 human models with a wide range of human attributes were generated. A pendulum chest impact condition was applied to each model as an initial assessment of the resulting variability in response. The morphed models demonstrated mesh quality similar to the baseline model. The peak impact forces and chest deflections in the chest pendulum impacts varied substantially with different models, supportive of consideration of population variation in evaluating the occupant injury risks. The method developed in this study will enable future safety design optimizations targeting at various vulnerable populations that cannot be considered with the current models.

Original languageEnglish (US)
Pages (from-to)253-260
Number of pages8
JournalJournal of Biomechanics
Volume60
DOIs
StatePublished - Jul 26 2017

Fingerprint

Human Body
Thorax
Wounds and Injuries
Body Size
Motor Vehicles
Vulnerable Populations
Safety
Pendulums
Interpolation
Geometry

Keywords

  • Chest impact
  • Finite element model
  • Human model
  • Mesh morphing
  • Vulnerable population

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

Cite this

An automated method to morph finite element whole-body human models with a wide range of stature and body shape for both men and women. / Zhang, Kai; Cao, Libo; Fanta, Abeselom; Reed, Matthew P.; Neal, Mark; Wang, Jenne Tai; Lin, Chin Hsu; Hu, Jingwen.

In: Journal of Biomechanics, Vol. 60, 26.07.2017, p. 253-260.

Research output: Contribution to journalArticle

Zhang, Kai; Cao, Libo; Fanta, Abeselom; Reed, Matthew P.; Neal, Mark; Wang, Jenne Tai; Lin, Chin Hsu; Hu, Jingwen / An automated method to morph finite element whole-body human models with a wide range of stature and body shape for both men and women.

In: Journal of Biomechanics, Vol. 60, 26.07.2017, p. 253-260.

Research output: Contribution to journalArticle

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