TecQuipment’s Thick Cylinder apparatus allows students to examine radial and hoop stresses and strains in the wall of a thick cylinder. They can then compare experimental results with the theoretical Lamé predictions. It clearly shows the principles, theories, and analytical techniques, and provides effective, practical support to studies. 

A sturdy base contains all parts of the Thick Cylinder apparatus. This forms a compact product, ideal for use on a workbench. 

The apparatus consists of a thick-walled aluminum cylinder, held in a robust frame. The cylinder is in two halves, cemented together. One face of the joint has an eccentric shallow groove that contains ten strain gauges at precise radii and orientation. These gauges measure the radial and hoop strains. Jointing cement fills the groove. Strain gauges on the inner and outer walls of the cylinder measure longitudinal and circumferential strains. The cylinder contains oil. To stress the cylinder, students use a hydraulic hand-pump to pressurize the oil. 

To perform experiments, students set the gauges to zero and use the pump to pressurize the cylinder. They take readings at several stages while increasing the pressure. The results can be taken by hand using the built-in display and pressure gauge and plotted by hand. Alternatively, they can use TecQuipment’s optional Versatile Data Acquisition System (VDAS®) to capture the data and plot the relevant graphs and export data. They then compare their results with calculations made using theory. A user guide is supplied with the Thick Cylinder apparatus. The guide includes full details of the equipment, detailed experiment procedures, theory, and results. 

For quick and reliable tests, TecQuipment’s optional VDAS® gives accurate real-time data capture, monitoring and display, calculation and charting of all important readings on a computer.