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Mechanical characterization of brain tissue in simple shear at dynamic strain rates

Rashid, Badar
; 
Destrade, Michel
; 
Gilchrist, Michael D.
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Identifiers
http://hdl.handle.net/10379/5591
 https://doi.org/10.13025/15262
Publication Date
2013-12
Keywords
Diffuse axonal injury (DAI), Ogden, Mooney-Rivlin, Traumatic brain injury (TBI), Homogeneous, Viscoelastic, Relaxation, Soft biological tissues, Constitutive model, Viscoelastic properties, Large deformation, Slice cultures, White matter, Head injury, Behavior, Compression, In vivo
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Citation
Rashid, B,Destrade, M,Gilchrist, MD (2013) 'Mechanical characterization of brain tissue in simple shear at dynamic strain rates'. Journal Of The Mechanical Behavior Of Biomedical Materials, 28 :71-85.
Abstract
During severe impact conditions, brain tissue experiences a rapid and complex deformation, which can be seen as a mixture of compression, tension and shear. Diffuse axonal injury (DAI) occurs in animals and humans when both the strains and strain rates exceed 10% and 10/s, respectively. Knowing the mechanical properties of brain tissue in shear at these strains and strain rates is thus of particular importance, as they can be used in finite element simulations to predict the occurrence of brain injuries under different impact conditions. However, very few studies in the literature provide this information. In this research, an experimental setup was developed to perform simple shear tests on porcine brain tissue at strain rates
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Publisher
Elsevier
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Attribution-NonCommercial-NoDerivs 3.0 Ireland
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Mathematics (Scholarly Articles)