Citation

Zhi Z, Guo S. China Saf. Sci. J. 2019; 29(4): 25-30.

Copyright

(Copyright © 2019, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2019.04.005

PMID

unavailable

Abstract

This paper aims to reconstruct the damage mechanism and penetration process of the thin-walled long rod penetrating the driver's chest when the rectangular road barrier collides with the car. By combining medical software Mimics with engineering software Hypermesh, an accurate geometric model of human thoracic skeletal tissue and a finite element chest biomechanical model were established, and the simulation and calculation experiments were carried out by using LS-DYNA. The results of simulation experiments were verified by accident cases and medical cases. The damage mechanism of thin-walled long rod penetrating human chest was analyzed by analogy with that of bullet penetration injury effect. The results show that the fracture of ribs and other fractures occurred in the chest before and after the long wall of the barrier penetrate the driver's chest are in good agreement with medical cases and accident cases, that the degree of chest penetration injury is related to the speed, stability and quality factors of thin-walled long rod, and that this experiment can meet the needs of medical thoracic penetrating injury research. © 2019 China Safety Science Journal

Language: zh