Development and Validation of an Age-Specific Lower Extremity Finite Element Model for Simulating Pedestrian Accidents
Autor: | Yu Yan, Lin Hu, Yongcheng Long, Jing Huang |
---|---|
Rok vydání: | 2018 |
Předmět: |
medicine.medical_specialty
Percentile Article Subject QH301-705.5 0206 medical engineering Anatomical structures Population Biomedical Engineering Medicine (miscellaneous) Bioengineering 02 engineering and technology Pedestrian Pedestrian accident Physical medicine and rehabilitation 0502 economics and business medicine Biology (General) education 050210 logistics & transportation education.field_of_study business.industry 05 social sciences LOWER EXTREMITY INJURY 020601 biomedical engineering Age specific Finite element method business human activities TP248.13-248.65 Research Article Biotechnology |
Zdroj: | Applied Bionics and Biomechanics, Vol 2018 (2018) Applied Bionics and Biomechanics |
ISSN: | 1754-2103 1176-2322 |
Popis: | 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. |
Databáze: | OpenAIRE |
Externí odkaz: |