Browsing Mathematics (Scholarly Articles) by Author "Gilchrist, Michael D."

Now showing items 1-11 of 11

    • Automated estimation of collagen fibre dispersion in the dermis and its contribution to the anisotropic behaviour of skin 

      Ní Annaidh, Aisling; Destrade, Michel; Gilchrist, Michael D. (Springer, 2012-08)
      Collagen fibres play an important role in the mechanical behaviour of many soft tissues. Modelling of such tissues now often incorporates a collagen fibre distribution. However, the availability of accurate structural data ...

    • Bimodular rubber buckles early in bending 

      Destrade, Michel; Gilchrist, Michael D.; Motherway, Julie A. (Elsevier, 2009-12-03)
      A block of rubber eventually buckles under severe flexure, and several axial wrinkles appear on the inner curved face of the bent block. Experimental measurements reveal that the buckling occurs earlier - at lower compressive ...

    • Characterising the anisotropic mechanical properties of excised human skin 

      Ní Annaidh, Aisling; Destrade, Michel; Gilchrist, Michael D. (2012)
      The mechanical properties of skin are important for a number of applications including surgery, dermatology, impact biomechanics and forensic science. In this study, we have investigated the influence of location and ...

    • A combined experimental and numerical study of stab-penetration forces 

      Ní Annaidh, Aisling; Cassidy, Mary; Curtis, Michael; Destrade, Michel; Gilchrist, Michael D. (Elsevier, 2013-12)
      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-legal situations. The main objective of ...

    • Influence of preservation temperature on the measured mechanical properties of brain tissue 

      Rashid, Badar; Destrade, Michel; Gilchrist, Michael D. (Elsevier, 2013-04-26)
      The large variability in experimentally measured mechanical properties of brain tissue is due to many factors including heterogeneity, anisotropy, age dependence and post-mortem time. Moreover, differences in test protocols ...

    • Mechanical characterization of brain tissue in compression at dynamic strain rates 

      Destrade, Michel; Gilchrist, Michael D. (Elsevier, 2012-03-02)
      Traumatic brain injury (TBI) occurs when local mechanical load exceeds certain tolerance levels for brain tissue. Extensive research has been done previously for brain matter experiencing compression at quasistatic loading; ...

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

      Rashid, Badar; Destrade, Michel; Gilchrist, Michael D. (Elsevier, 2013-12)
      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 ...

    • Mechanical characterization of brain tissue in tension at dynamic strain rates 

      Rashid, B,Destrade, M,Gilchrist, MD; Destrade, Michel; Gilchrist, Michael D. (Elsevier, 2012-09-10)
      Mechanical characterization of brain tissue at high loading velocities is crucial for modeling Traumatic Brain Injury (TBI). During severe impact conditions, brain tissue experiences compression, tension and shear. Limited ...

    • Onset of non-linearity in the elastic bending of blocks 

      Destrade, Michel; Gilchrist, Michael D. (American Society of Mechanical Engineers, 2013-01-25)
      The classical flexure problem of non-linear incompressible elasticity is revisited assuming that the bending angle suffered by the block is specified instead of the usual applied moment. The general moment-bending angle ...

    • Third and fourth-order elasticity of biological soft tissues 

      Destrade, Michel; Gilchrist, Michael D. (Acoustical Society of America, 2010-01-24)
      In the theory of weakly nonlinear elasticity, Hamilton et al. [J. Acoust. Soc. Am. 116, 41-44 (2004)] identified W = -I2+(A/3)I3+DI22 as the fourth-order expansion of the strain-energy density for incompressible isotropic ...

    • Third- and fourth-order constants of incompressible soft solids and the acousto-elastic effect. 

      Destrade, Michel; Gilchrist, Michael D. (Acoustical Society of America, 2010-02)
      Acousto-elasticity is concerned with the propagation of small-amplitude waves in deformed solids. Results previously established for the incremental elastodynamics of exact non-linear elasticity are useful for the determination ...