Deformation of Sand in Shear

The behavior of an Ottawa sand under different combinations of hydrostatic and deviatoric stresses has been studied in a new soil test box. The general shearing behavior with special reference to the proportions of elastic and plastic components of the shearing deformations is described. These were examined by loading and unloading the sample along preselected stress paths. The sample was under a three-dimensional stress state and the required stresses were conveniently generated by means of the stress control device developed in connection with the soil test box.