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Extreme softness of brain matter in simple shear
Michel Destrade, Michael D. Gilchrist, Jerry G. Murphy +2
We show that porcine brain matter can be modelled accurately as a very soft rubber-like material using the Mooney-Rivlin strain energy function, up to strains as high as 60\%. This…
Deficiencies in numerical models of anisotropic nonlinearly elastic materials
Aisling Ni Annaidh, Michel Destrade, Michael D. Gilchrist +1
Incompressible nonlinearly hyperelastic materials are rarely simulated in Finite Element numerical experiments as being perfectly incompressible because of the numerical difficulti…
Mechanical characterization of brain tissue in simple shear at dynamic strain rates
Badar Rashid, Michel Destrade, Michael D. Gilchrist
During severe impact conditions, brain tissue experiences a rapid and complex deformation, which can be seen as a mixture of compression, tension and shear. Moreover, diffuse axona…
Mechanical characterization of brain tissue in tension at dynamic strain rates
Badar Rashid, Michel Destrade, Michael D. Gilchrist
Mechanical characterization of brain tissue at high loading velocities is crucial for modeling Traumatic Brain Injury (TBI). During severe impact conditions, brain tissue experienc…
Head-to-nerve analysis of electromechanical impairments of diffuse axonal injury
Ilaria Cinelli, Michel Destrade, Peter McHugh +3
The aim was to investigate mechanical and functional failure of diffuse axonal injury (DAI) in nerve bundles following frontal head impacts, by finite element simulations. Anatomic…
A combined experimental and numerical study of stab-penetration forces
Aisling Ni Annaidh, Marie Cassidy, Michael Curtis +2
The magnitude of force used in a stabbing incident can be difficult to quantify, although the estimate given by forensic pathologists is often seen as `critical' evidence in medico…