THE TRANSITION OF LOCALIZED DEFORMATION MODE DEVELOPING IN THE NORMALLY CONSOLIDATED CLAY SPECIMEN

Abstract

A soil/water coupled finite element program (DACSAR-F) is coded based on finite elasto-plastic deformation theory. Cam-clay model is incorporated in the program. Then, the localized deformation developing in the normally consolidated clay specimen subjected to plane strain compression shear is numerically simulated. The transition of localized deformation mode is examined and the mode change of localized deformation is discussed. Emphasized is the dominant role of pore water migration inside the specimen to the change of localized deformation mode.