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Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies
In the real world crashes, brain injury is one of the leading causes of deaths. Using isolated human head finite element (FE) model to study the brain injury patterns and metrics has been a simplified methodology widely adopted, since it costs significantly lower computation resources than a whole h...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4606094/ https://www.ncbi.nlm.nih.gov/pubmed/26495029 http://dx.doi.org/10.1155/2015/348947 |
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author | Li, Dao Ma, Chunsheng Shen, Ming Li, Peiyu Zhang, Jinhuan |
author_facet | Li, Dao Ma, Chunsheng Shen, Ming Li, Peiyu Zhang, Jinhuan |
author_sort | Li, Dao |
collection | PubMed |
description | In the real world crashes, brain injury is one of the leading causes of deaths. Using isolated human head finite element (FE) model to study the brain injury patterns and metrics has been a simplified methodology widely adopted, since it costs significantly lower computation resources than a whole human body model does. However, the degree of precision of this simplification remains questionable. This study compared these two kinds of methods: (1) using a whole human body model carried on the sled model and (2) using an isolated head model with prescribed head motions, to study the brain injury. The distribution of the von Mises stress (VMS), maximum principal strain (MPS), and cumulative strain damage measure (CSDM) was used to compare the two methods. The results showed that the VMS of brain mainly concentrated at the lower cerebrum and occipitotemporal region close to the cerebellum. The isolated head modelling strategy predicted higher levels of MPS and CSDM 5%, while the difference is small in CSDM 10% comparison. It suggests that isolated head model may not equivalently reflect the strain levels below the 10% compared to the whole human body model. |
format | Online Article Text |
id | pubmed-4606094 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-46060942015-10-22 Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies Li, Dao Ma, Chunsheng Shen, Ming Li, Peiyu Zhang, Jinhuan Comput Math Methods Med Research Article In the real world crashes, brain injury is one of the leading causes of deaths. Using isolated human head finite element (FE) model to study the brain injury patterns and metrics has been a simplified methodology widely adopted, since it costs significantly lower computation resources than a whole human body model does. However, the degree of precision of this simplification remains questionable. This study compared these two kinds of methods: (1) using a whole human body model carried on the sled model and (2) using an isolated head model with prescribed head motions, to study the brain injury. The distribution of the von Mises stress (VMS), maximum principal strain (MPS), and cumulative strain damage measure (CSDM) was used to compare the two methods. The results showed that the VMS of brain mainly concentrated at the lower cerebrum and occipitotemporal region close to the cerebellum. The isolated head modelling strategy predicted higher levels of MPS and CSDM 5%, while the difference is small in CSDM 10% comparison. It suggests that isolated head model may not equivalently reflect the strain levels below the 10% compared to the whole human body model. Hindawi Publishing Corporation 2015 2015-10-01 /pmc/articles/PMC4606094/ /pubmed/26495029 http://dx.doi.org/10.1155/2015/348947 Text en Copyright © 2015 Dao Li et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Li, Dao Ma, Chunsheng Shen, Ming Li, Peiyu Zhang, Jinhuan Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies |
title | Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies |
title_full | Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies |
title_fullStr | Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies |
title_full_unstemmed | Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies |
title_short | Brain Injury Differences in Frontal Impact Crash Using Different Simulation Strategies |
title_sort | brain injury differences in frontal impact crash using different simulation strategies |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4606094/ https://www.ncbi.nlm.nih.gov/pubmed/26495029 http://dx.doi.org/10.1155/2015/348947 |
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