Thick Cylinder — MOE Lab Tender Details

Thick Cylinder

Bench-mounted machine to allow students to do stress and strain tests on a thick-walled cylinder

Experiments
Radial and hoop strains throughout the cylinder wall
Radial and hoop stress distribution in the wall
Longitudinal stress and strain at the outer surface
Circumferential stress and strains at the inner and outer surfaces
Comparison with Lamé predictions
Principal stresses and maximum shear stress
Appraisal of accuracy of location of strain gauges

Specifications
Cylinder material: Aluminium Alloy type HE15
Cylinder Oil: Castor Oil
Nominal cylinder dimensions: 203 mm long, 150 mm outside diameter, 37 mm inside diameter
Pressure: Displayed by Bourdon gauge, with output to Versatile Data Acquisition system
Maximum Cylinder Pressure 7 MN.m-2
Young’s Modulus 73 GN.m-2
Poisson’s Ratio 0.33
Strain:
10x electrical resistance gauges mounted at precise radii and orientation inside the eccentric groove and displayed digitally, with output for Versatile Data Acquisition system
2x electrical resistance gauges mounted on the outside wall of the cylinder and displayed digitally, with output for Versatile Data Acquisition system
1x electrical resistance gauges mounted on the inside wall of the cylinder and displayed digitally, with output for Versatile Data Acquisition system
Nett Dimensions and Weight: 700 mm wide x 370 mm front to back x 400 mm high, 30kg