Clisp Studio Hollow Cylinder Software Module

The Hollow cylinder test involves four different applied stresses to the sample, Axial, Torsional, Inner and Outer confining stresses. This gives four degrees of freedom to the deformation of the specimen.
The sample is in the form of a thick hollow cylinder fixed between two rigid platens. The hollow cylinder test aims to study the behaviour of the application of three unequal principal stresses to the specimen and the impact of the stresses from rotation when the specimen is rotated.
The main purpose of this test is to study the impact of the principle stress rotation to the behaviour of the sample.
The system includes five different controllers. Two electro-mechanical actuators (controlled by Dynamic Servo Controllers) which are used to control the rotation and the axial load, while 3 pressure controllers are used to control the Inner, Outer and Back pressures. The software conforms to JGS 0543-2020, JGS 0551-2020.