Document Detail


Modelling the Brain for Rotational Loading: Shear Effects and Other Complications.
MedLine Citation:
PMID:  11264855     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study considers modelling the brain due to rotation of the skull where, at lower frequencies, the shear property of the material is important. Investigations reported here cover the effect of elastic and viscoelastic (lossy) cerebral material, the effect of the Falx protruding into the brain, the gap around the Falx and the brain filled with non viscous fluid in addition to different models of the Falx with bending or membrane stiffness. Analytical benchmark formulations are also described for the simple 2D plane strain in a cylinder produced by a half-sine rotation on the outer periphery which allows numerical (Finite Element) models to be validated. The results show the importance of the material properties, duration of loading and amplitude of loading as well as the influence of the partition. The results are shown for predicted maximum Principal strains in the models, as this may well be indicative of whether damage of the brain tissue occurs.
Authors:
L. Taleb; N. S. Ferguson; C. L. Morfey
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Computer methods in biomechanics and biomedical engineering     Volume:  3     ISSN:  1476-8259     ISO Abbreviation:  Comput Methods Biomech Biomed Engin     Publication Date:  2000  
Date Detail:
Created Date:  2001-Mar-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9802899     Medline TA:  Comput Methods Biomech Biomed Engin     Country:  -    
Other Details:
Languages:  ENG     Pagination:  297-308     Citation Subset:  -    
Affiliation:
Institute of Sound and Vibration Research, Southampton University, Highfield, Southampton S017 1BJ, United Kingdom.
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