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Products | Theory of Machines and Properties of Materials | Stress and Strain Analysis | FL 130

FL 130

Thin Cylinder Apparatus

Technical Description

The main component of this table unit is a thin-walled metal cylinder. It is sealed on one side with a piston which can be repositioned with a hand wheel. This makes it possible to create either the dual-axis stress state of a sealed container or the single-axis stress state of a tube. The cylinder is filled with oil and is hermetically sealed and maintenance-free. The internal pressure is generated with a hand-activated hydraulic pump and displayed on an easy-to-read manometer. Five measuring tapes are attached around the perimeter at angles of 0°, 30°, 45°, 60° and 90° to the cylinder axis to measure the elongation. The unit is used in conjunction with the measuring amplifier FL 151.

Learning Objectives / Experiments

· Determination of the principal stresses of an open cylinder (open tube)
· Determination of the principal stresses of a closed cylinder
· Comparison of open/closed cylinders
· Determination of transversal contraction coefficient

Features

· Direct stress can be measured on container along length and tangentially
· Closed container or open tube can be illustrated

Available accessories

FL 151 -- Multi Channel Measuring Amplifier

Alternative products

FL 120 -- Round Diaphragm Apparatus
FL 140 -- Thick Cylinder Apparatus

Specification

[1] Tabletop experiment on the stress state of a thin-walled cylinder with applied internal pressure
[2] Aluminium cylinder, length 400mm, Ø75mm, wall thickness 2.8mm
[3] 5 strain gauges around perimeter, various orientations
[4] max. experimental pressure 35N/mm² (35bar)
[5] Manometer up to 60bar, Class 1.0, Ø100mm
[6] l x w x h 700x330x350mm

Technical Data

Cylinder length: 400mm
Diameter: Ø75mm
Wall thickness: 2.8mm, aluminium
Internal pressure: max. 3.5 N/mm² (35 bar)
5 strain gauges in half-bridge circuit around perimeter

Dimensions and Weight

l x w x h : 700 x 350 x 350 mm
Weight : approx. 25 kg

Scope of Delivery

1 complete experimental apparatus, 1 experiment instructions

Order Details

021.13000 FL 130 Thin Cylinder Apparatus