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Products | Theory of Machines and Properties of Materials | Stress and Strain Analysis | FL 140

FL 140

Thick Cylinder Apparatus

Technical Description

This table-top unit demonstrates the normal distribution of stress in the radial, tangential and axial directions in the wall of a container under internal pressure, and allows theory to be checked experimentally. A thick-walled aluminium cylinder is placed under internal pressure using a hand pump; the pressure is displayed on a manometer. The hydraulic system is hermetically sealed and maintenance-free. Strain gauges are fitted at various radii in a joint in the cylinder. Using these gauges, it is possible to fully record the strain in the cylinder. For this purpose, the FL 151 Multi-Channel Measuring Amplifier is used as an accessory. The actual stresses are calculated from the strain measurements. All components are fitted to a portable base plate.

Learning Objectives / Experiments

· Measurements of strain in the wall of a cylinder under internal pressure
· Determination of the distribution of stress in the container wall
· Investigation of the relationships between, strain, stress and load
· Usage of Mohr's circle.

Features

· Demonstration of three-dimensional stress states in the wall of a container under internal pressure

Available accessories

FL 151 -- Multi Channel Measuring Amplifier

Alternative products

FL 120 -- Round Diaphragm Apparatus
FL 130 -- Thin Cylinder Apparatus

Specification

[1] Table-top experiment of the stress states in a thick-walled container under internal pressure
[2] Aluminium cylinder, length 300mm, Ø140mm, wall thickness 50mm
[3] Max. experimental pressure 7N/mm² (70bar)
[4] Manometer up to 100bar, Ø100mm
[5] 8 strain gauges at varying radii in the cylinder wall
[6] l x w x h 700x350x330mm

Technical Data

Cylinder length: 300mm
Diameter: Ø140mm
Wall thickness: 50mm
Internal pressure: max. 7N/mm² (70bar)
8 strain gauges in the cylinder wall

Dimensions and Weight

l x w x h : 700 x 350 x 330 mm
Weight : approx. 32 kg

Scope of Delivery

1 complete experimental apparatus, 1 instruction manual

Order Details

021.14000 FL 140 Thick Cylinder Apparatus