Now showing items 1-20 of 151

    • Acoustic waves at the interface of a pre-stressed incompressible elastic solid and a viscous fluid 

      Destrade, Michel (Elsevier, 2006-11-10)
      We analyse the influence of pre-stress on the propagation of interfacial waves along the boundary of an incompressible hyperelastic half-space that is in contact with a viscous fluid extending to infinity in the adjoining ...
    • Actively controllable topological phase transition in phononic beam systems 

      Zhou, Weijian; Chen, Weiqiu; Destrade, Michel; Lim, C.W. (Elsevier, 2020-05-01)
      Topological insulators, which allow edge or interface waves but forbid bulk waves, have revolutionized our scientific cognition of acoustic/elastic systems. Due to their nontrivial topological characteristics, edge (interface) ...
    • Asymptotic results for bifurcations in pure bending of rubber blocks 

      Destrade, Michel (Oxford Journals, 2008-03)
      The bifurcation of an incompressible neo-Hookean thick block with a ratio of thickness to length n, subject to pure bending, is considered. The two incremental equilibrium equations corresponding to a nonlinear pre-buckling ...
    • At least three invariants are necessary to model the mechanical response of incompressible, transversely isotropic materials 

      Destrade, Michel; Mac Donald, B.; Murphy, J.G.; Saccomandi, Giuseppe (Springer, 2013-04-18)
      The modelling of off-axis simple tension experiments on transversely isotropic nonlinearly elastic materials is considered. A testing protocol is proposed where normal force is applied to one edge of a rectangular specimen ...
    • 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 ...
    • Bending control and stability of functionally graded dielectric elastomers 

      Su, Yipin; Ogden, Ray W.; Destrade, Michel (Elsevier, 2021-01-18)
      A rectangular plate of dielectric elastomer exhibiting gradients of material properties through its thickness will deform inhomogeneously when a potential difference is applied to compliant electrodes on its major surfaces, ...
    • Bending instabilities of soft biological tissues 

      Destrade, Michel; Ní Annaidh, Aisling (Elsevier, 2009-12-15)
      Rubber components and soft biological tissues are often subjected to large bending deformations while 'in service'. The circumferential line elements on the inner face of a bent block can contract up to a certain critical ...
    • 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 ...
    • Bleustein-Gulyaev waves in some functionally graded materials 

      Destrade, Michel (Elsevier, 2006-02-28)
      Functionally Graded Materials are inhomogeneous elastic bodies whose properties vary continuously with space. Hence consider a half-space (x2>0) occupied by a special Functionally Graded Material made of an hexagonal (6 ...
    • Catastrophic thinning of dielectric elastomers 

      Zurlo, G.; Destrade, Michel; DeTommasi, M.; Puglisi, G. (American Physical Society, 2017-02-15)
      We provide an energetic insight into the catastrophic nature of thinning instability in soft electroactive elastomers. This phenomenon is a major obstacle to the development of giant actuators, yet it is neither completely ...
    • 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 ...
    • Circularly-polarized plane waves in a deformed Hadamard material 

      Destrade, Michel (Elsevier, 2001-10-31)
      Small-amplitude inhomogeneous plane waves propagating in any direction in a homogeneously deformed Hadamard material are considered. Conditions for circular polarization are established. The analysis relies on the use of ...
    • 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 ...
    • Compact travelling waves in viscoelastic solids 

      Destrade, Michel (IOP Science, 2009-09-02)
      We introduce a model for nonlinear viscoelastic solids, for which travelling shear waves with compact support are possible. Using analytical and numerical methods, we investigate the general case of this model, and an ...
    • Compression instabilities of tissues with localized strain softening. 

      Destrade, Michel (World Scientific Publishing Company, 2010-09-27)
      The stress-strain relationship of biological soft tissues affected by Marfan's syndrome is believed to be nonconvex. More specifically, Haughton and Merodio recently proposed a strain energy density leading to localized ...
    • Creep, recovery, and waves in a nonlinear fiber-reinforced viscoelastic solid 

      Destrade, Michel (Society for Industrial and Applied Mathematics, 2007-10-10)
      We present a constitutive model capturing some of the experimentally observed features of soft biological tissues: nonlinear viscoelasticity, nonlinear elastic anisotropy, and nonlinear viscous anisotropy. For this model ...
    • Deficiencies in numerical models of anisotropic nonlinearly elastic materials 

      Ní Annaidh, Aisling; Destrade, Michel; Gilchrist, M.; Murphy, J.G. (Springer, 2013-08)
      Incompressible nonlinearly hyperelastic materials are rarely simulated in finite element numerical experiments as being perfectly incompressible because of the numerical difficulties associated with globally satisfying ...
    • Determination of friction coefficient in unconfined compression of brain tissue 

      Rashid, Badar; Destrade, Michel; Gilchrist, Michael (Elsevier, 2012-10)
      Unconfined compression tests are more convenient to perform on cylindrical samples of brain tissue than tensile tests in order to estimate mechanical properties of the brain tissue because they allow for homogeneous ...
    • Differences in tension and compression in the nonlinearly elastic bending of beams 

      Destrade, Michel (Texas Digital Library, 2009-02)
      The classical flexure problem of non-linear incompressible elasticity is revisited for elastic materials whose mechanical response is different in tension and compression - the so-called bimodular materials. The flexure ...
    • Edge wrinkling in elastically supported pre-stressed incompressible isotropic plates 

      Destrade, Michel; Fu, Yibin; Nobili, Andrea (The Royal Society Publishing, 2016-09-07)
      The equations governing the appearance of flexural static perturbations at the edge of a semi-infinite thin elastic isotropic plate, subjected to a state of homogeneous bi-axial pre-stress, are derived and solved. The plate ...