LOCALISATION IN THE PRESENCE OF EXCESS POREWATER PRESSURE

Localisation has been modelled numerically in the plane strain elemental test using two different frictional constitutive models. It is demonstrated that for this simple problem the use of Mohr-Coulomb analysis is adequate to model the formation of shear planes in drained soils. However these results are not the same as those obtained using the Monot double-hardening model. When analysing an undrained soil only the double-hardening model was investigated. It is demonstrated that the dilatancy or contractancy of the soil model has a very strong influence on the resulting deformation pattern. In particular, it was found that localisation did not occur for the dilatant soil unless a cavitation limit was applied, even when a strain-softening dilatant soil model was implemented.(A)

  • Availability:
  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • SHUTTLE, D A
    • Smith, I M
  • Publication Date: 1990

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00607140
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM