Multiaxial cyclic testing of saturated Ottawa sand

Abstract

Static and dynamic behavior of the dry and saturated Ottawa sand are studied in the constitutive modeling laboratory, by using cubical multiaxial device with servo-controlled loading system and high speed automatic data acquisition system. In this investigation, the multiaxial cubical device with servo-controlled loading system and high speed automatic data acquisition system is used to apply independently the three-dimensional loading and measure corresponding strains and stress. The cubical multiaxial device is modified to include the servo-controlled pressure system and automatic data acquisition system. To understand the cyclic behavior and post cyclic behavior, comprehensive laboratory tests have been performed on the dry and saturated Ottawa sand, covering a number of relative densities and confinements.