A Finite Element Model of the Foot/Ankle to Evaluate Injury Risk in Various Postures

2017 ◽  
Vol 45 (8) ◽  
pp. 1993-2008
Author(s):  
Chris Smolen ◽  
Cheryl E. Quenneville
2016 ◽  
Vol 16 (08) ◽  
pp. 1640018 ◽  
Author(s):  
MICHÈLE BODO ◽  
SÉBASTIEN ROTH

This study deals with free fall accident analysis involving adults, and their numerical replications using a finite element model of the human thorax. The main purpose is to determine the role of body position at impact in the thorax injury risk appearance. For this study, cases of real-world free-fall provided by an emergency department were selected and investigated. These cases involved both male and female with an age range of 20 to 63 years, who sustained accidental free-fall with both injured and uninjured cases. The examination of the patients' medical record provided helpful information to accurately perform numerical replications with the finite element model HUByx (Hermaphrodite Universal Biomechanical yx model) which was already validated for various experimental tests in the field of automobile, ballistic impacts and blast. The results of simulations at different impact location allowed highlighting the crucial influence of the body orientation in the risk of thoracic injury occurrence.


Author(s):  
Frank Meyer ◽  
John Humm ◽  
Narayan Yoganandan ◽  
Aleksander Leszczynski ◽  
Nicolas Bourdet ◽  
...  

2015 ◽  
Author(s):  
Samantha L. Schoell ◽  
Ashley A. Weaver ◽  
Jillian E. Urban ◽  
Derek A. Jones ◽  
Joel D. Stitzel ◽  
...  

2018 ◽  
Vol 19 (sup1) ◽  
pp. S59-S64
Author(s):  
Gwansik Park ◽  
Jason Forman ◽  
Taewung Kim ◽  
Matthew B. Panzer ◽  
Jeff R. Crandall

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Jing Huang ◽  
Yongcheng Long ◽  
Yu Yan ◽  
Lin Hu

The objective of the present study is to develop an age-specific lower extremity finite element model for pedestrian accident simulation. Finite element (FE) models have been used as a versatile tool to simulate and understand the pedestrian injury mechanisms and assess injury risk during crashes. However, current computational models only represent certain ages in the population, the age spectrum of the pedestrian victims is very large, and the geometry of anatomical structures and material property of the lower extremities changes with age for adults, which could affect the injury tolerance, especially in at-risk populations such as the elderly. The effects of age on the material mechanical property of bone and soft tissues of the lower extremities as well as the geometry of the long bone were studied. Then an existing 50th percentile male pedestrian lower extremity model was rebuilt to depict lower extremity morphology for 30- to 70-year-old (YO) individuals. A series of PMHS tests were simulated to validate the biofidelity and stability of the created age-specific models and evaluate the lower extremity response. The development of age-specific lower extremity models will lead to an improved understanding of the pedestrian lower extremity injury mechanisms and injury risk prediction for the whole population in vehicle-pedestrian collision accidents.


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