Publicação
Development of a computational model of the human skull
| Resumo: | The leading cause of mortality for both children and adults, between the ages of 5 and 29 years old, is road traffic accidents. To better understand the mechanisms that cause them or to develop prevention and detection mechanisms, several finite element models of the human head have been developed, with the YEAHM developed by members of the university of Aveiro. For this reason, the purpose of this dissertation is to improve the YEAHM, in particular the skull, with differentiation between different types of bone tissues, based on the original external geometry, but segmenting it with sutures, diploë and cortical bone, and validating it as a tool to predict cranial fractures. Several validations are performed, comparing the results of the simulation with the experimental results available in the literature at three levels: i) local validation of the material; ii) Isolated skull blunt trauma; iii) Coupled cranio-intracranial structures subjected to three impacts at different speeds, simulating falls. Accelerations, impact forces and fracture patterns are used to validate the skull model. |
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| Autores principais: | Barbosa, Alcino Rafael Leal |
| Assunto: | Finite element method Skull Trabecular Cortical Sutures |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Aveiro |
| Idioma: | inglês |
| Origem: | RIA - Repositório Institucional da Universidade de Aveiro |
| Resumo: | The leading cause of mortality for both children and adults, between the ages of 5 and 29 years old, is road traffic accidents. To better understand the mechanisms that cause them or to develop prevention and detection mechanisms, several finite element models of the human head have been developed, with the YEAHM developed by members of the university of Aveiro. For this reason, the purpose of this dissertation is to improve the YEAHM, in particular the skull, with differentiation between different types of bone tissues, based on the original external geometry, but segmenting it with sutures, diploë and cortical bone, and validating it as a tool to predict cranial fractures. Several validations are performed, comparing the results of the simulation with the experimental results available in the literature at three levels: i) local validation of the material; ii) Isolated skull blunt trauma; iii) Coupled cranio-intracranial structures subjected to three impacts at different speeds, simulating falls. Accelerations, impact forces and fracture patterns are used to validate the skull model. |
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