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Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure

Traffic accidents have been closely concerned by the society, and the serious traffic accidents caused by vehicle and guardrail collisions are one of the main manifestations. However, the research in the field of vehicle and guardrail collisions is mainly limited to the waveform guardrail on the exp...

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Autores principales: Zhi, Zhi, Guo, ShiYong, Chen, LuWei, Zhu, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10453680/
https://www.ncbi.nlm.nih.gov/pubmed/31829853
http://dx.doi.org/10.1177/0036850419874216
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author Zhi, Zhi
Guo, ShiYong
Chen, LuWei
Zhu, Yan
author_facet Zhi, Zhi
Guo, ShiYong
Chen, LuWei
Zhu, Yan
author_sort Zhi, Zhi
collection PubMed
description Traffic accidents have been closely concerned by the society, and the serious traffic accidents caused by vehicle and guardrail collisions are one of the main manifestations. However, the research in the field of vehicle and guardrail collisions is mainly limited to the waveform guardrail on the expressway, and there is little research on the urban road guardrail, especially in the secondary damage caused by guardrails field. Moreover, the collision between vehicle and the rectangular guardrail of city road is easy to form thin-walled long rod, and it penetrates the driver’s chest. To evaluate and analyze the injury results and mechanism of this phenomenon, a penetrating finite element model of chest bone characterized by Chinese human is established using the medical software (MIMICS) and engineering software (HYPERMESH). The model validation is mainly dependent on the corpse impact test. In addition, the software (LS-DYNA) is deployed to simulate the thin-walled long rod penetration. According to the analysis of the “PENETRATION,” it is found that the cavity effect produced by the thin-walled long rod through the chest, and the degree of chest damage is related to the speed, angle, weight, and stability of the thin-walled long rod. The difference between the peak value of collision corpse experiment and simulation peak value is less than 5%, which implies that the model is reasonable. Besides, the simulation results also confirm the accident and medical diagnosis cases. As a common form of secondary injury in traffic accidents and a typical case of medical penetrating injury, the thin-walled long rod penetrating injury has important reference value for studies in both directions.
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spelling pubmed-104536802023-08-26 Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure Zhi, Zhi Guo, ShiYong Chen, LuWei Zhu, Yan Sci Prog Article Traffic accidents have been closely concerned by the society, and the serious traffic accidents caused by vehicle and guardrail collisions are one of the main manifestations. However, the research in the field of vehicle and guardrail collisions is mainly limited to the waveform guardrail on the expressway, and there is little research on the urban road guardrail, especially in the secondary damage caused by guardrails field. Moreover, the collision between vehicle and the rectangular guardrail of city road is easy to form thin-walled long rod, and it penetrates the driver’s chest. To evaluate and analyze the injury results and mechanism of this phenomenon, a penetrating finite element model of chest bone characterized by Chinese human is established using the medical software (MIMICS) and engineering software (HYPERMESH). The model validation is mainly dependent on the corpse impact test. In addition, the software (LS-DYNA) is deployed to simulate the thin-walled long rod penetration. According to the analysis of the “PENETRATION,” it is found that the cavity effect produced by the thin-walled long rod through the chest, and the degree of chest damage is related to the speed, angle, weight, and stability of the thin-walled long rod. The difference between the peak value of collision corpse experiment and simulation peak value is less than 5%, which implies that the model is reasonable. Besides, the simulation results also confirm the accident and medical diagnosis cases. As a common form of secondary injury in traffic accidents and a typical case of medical penetrating injury, the thin-walled long rod penetrating injury has important reference value for studies in both directions. SAGE Publications 2019-09-16 /pmc/articles/PMC10453680/ /pubmed/31829853 http://dx.doi.org/10.1177/0036850419874216 Text en © The Author(s) 2020 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Article
Zhi, Zhi
Guo, ShiYong
Chen, LuWei
Zhu, Yan
Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
title Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
title_full Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
title_fullStr Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
title_full_unstemmed Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
title_short Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
title_sort research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10453680/
https://www.ncbi.nlm.nih.gov/pubmed/31829853
http://dx.doi.org/10.1177/0036850419874216
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