A Degradation Model for the Triaxial Cyclic Loading Behavior of Shiraz Silty Clay

Document Type : Research Paper

10.22099/ijstc.1999.7234

Abstract

In this paper the principles of the Ramberg-Osgood expression an the Masing criterion for cycling loading are described. Modification to the Ramberg-Osgood expression are reviewed and suggested methods for parameter determination in this equation are presented. The application of the expression for firs cycle behavior is illustrated. A common degradation criterion is described and, by representing other researchers' test results, it is shown that the criterion might not be generally applicable. A new degradation model is proposed which is found to be more representative than the other model. A model for predicting cyclic pore pressure for normally consolidated soil is also described. The parameters required for this model have been described in detail and its applicability in predicting cyclic behavior of Shiraz silty clay is presented.

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