Now showing items 8-11 of 11

    • Multi-level analysis of localisation problems 

      Sluys, L J; Estrin, Y; Wells, G N (2001-06)
      Localisation processes, such as shear banding and necking, have been investigated following a macroscopic and a microscopic approach. Both approaches have been formulated within a finite deformation plasticity framework. ...
    • A novel technique for modelling interfaces in reinforced brittle materials 

      Simone, A; Wells, G N; Sluys, L J (2001)
      A novel numerical technique for the modelling of interfaces is introduced for the analysis of reinforced brittle materials. The method exploits the partition of unity property of finite element shape functions. By considering ...
    • A p-adaptive scheme for overcoming volumetric locking during isochoric plastic deformation 

      Wells, G N; Sluys, L J (2001-06)
      A p-adaptive scheme is developed in order to overcome volumetric locking in low order finite elements. A special adaptive scheme is used which is based on the partition of unity concept. This allows higher order polynomial ...
    • Simulating discontinuities in a gradient-enhanced continuum 

      Simone, A; Wells, G N; Sluys, L J (2002)
      A continuum-discrete model for failure in quasi-brittle materials is presented. The continuum is regularised through the introduction of gradient terms into the constitutive model. At the transition to discrete failure, ...