[Effects of Geometrical Dimensions and Material Properties on the Rotation Characteristics of Head].
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
; 33(4): 639-44, 2016 Aug.
Article
em Zh
| MEDLINE
| ID: mdl-29714900
ABSTRACT
The validated finite element head model(FEHM)of a 3-year-old child,a 6-year-old child and a 50 th percentile adult were used to investigate the effects of head dimension and material parameters of brain tissues on the head rotational responses based on experimental design.Results showed that the effects of head dimension and directions of rotation on the head rotational responses were not significant under the same rotational loading condition,and the same results appeared in the viscoelastic material parameters of brain tissues.However,the head rotational responses were most sensitive to the shear modulus(G)of brain tissues relative to decay constant(ß)and bulk modulus(K).Therefore,the selection of material parameters of brain tissues is most important to the accuracy of simulation results,especially in the study of brain injury criterion under the rotational loading conditions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Rotação
/
Encéfalo
/
Análise de Elementos Finitos
/
Cabeça
Tipo de estudo:
Prognostic_studies
Limite:
Adult
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Child
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Child, preschool
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Humans
Idioma:
Zh
Revista:
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2016
Tipo de documento:
Article