The cam clay model has been widely used for numerical modelling of normal consolidated and lightly overconsolidated clays but it is deficient in its representation of soil behaviour inside the yield locus. In order to extend the cam clay model an inner kinematically hardening bubble is added in order to match experimentally observed hysteretic response. The new model is found to be quite successful in reproducing patterns of response of speswhite kaolin observed in slow cyclic oedometer and triaxial tests. It requires only two parameters in addition to the parameters of the soil model, and degenerates to the cam clay model for monotonic loading.
|Title of host publication
|Numerical models in geomechanics
|Subtitle of host publication
|S. Pietruszczak, G. N. Pande
|Elsevier Applied Science Publishers
|Number of pages
|Published - 1989
|International Symposium on Numerical Models in Geomechanics (3rd: 1989). - Niagara Falls, Canada
Duration: 8 May 1989 → 11 May 1989
|International Symposium on Numerical Models in Geomechanics (3rd: 1989).
|8/05/89 → 11/05/89