Buckling of Bars Apparatus MT 065

Sci-tech Buckling of Bars Apparatus Model MT 065 is used to clearly demonstrate the elastic buckling of bars under various influences. In this experiment, a bar is clamped or supported at both ends, depending on the buckling case. A load mechanism applies a compressive force to the bar. The applied force is measured and displayed on a force gauge. A dial gauge indicates the lateral deflection of the bar. This experiment also demonstrates that other factors affect the buckling behaviour, such as the material and the cross-sections. Another experiment shows the influence of additional shear forces. In this experiment, a shear force is applied to the joint in the buckling bar through a cable and a weight.

Size: 120cm x 60cm x 110cm (LxWxH)
Weight: 15 kg

Item Description

Features

  • Demonstration of buckling in bars
  • Test bars made of different materials and for different support types
  • Experiments with eccentric application of force and shear forces

Long and slim components such as bars, beams and columns are often subjected to compressive forces along their long axis owing to their function. Under the influence of critical compressive forces, such components can lose stability and deform laterally. The technical term for this loss of stability, which occurs suddenly or continuously, is buckling. In this case, it is not the material that fails but the component shape. The stresses in the bar are often still in the elastic region.

Sci-tech Buckling of Bars Apparatus Model MT 065 is used to clearly demonstrate the elastic buckling of bars under various influences. In this experiment, a bar is clamped or supported at both ends, depending on the buckling case. A load mechanism applies a compressive force to the bar. The applied force is measured and displayed on a force gauge. A dial gauge indicates the lateral deflection of the bar. This experiment also demonstrates that other factors affect the buckling behaviour, such as the material and the cross-sections. Another experiment shows the influence of additional shear forces. In this experiment, a shear force is applied to the joint in the buckling bar through a cable and a weight.

The parts of the experiment are clearly laid out and securely housed in a storage system.

Technical Specifications

Specifications

  1. Clear demonstration of elastic buckling
  2. Load mechanism for applying forces
  3. Test bars pinned or fixed
  4. Devices for generating shear forces with staggered weights
  5. Measurement of lateral deflection with a dial gauge
  6. Test bars of different materials: steel and aluminium
  7. Storage system for parts

 

Technical Specifications

Test bars

3x steel, LxWxH: 600x20x4mm

2x aluminium, LxWxH: 600x25x6mm

1x aluminium, LxØ: 600x10mm

1x aluminium, LxWxH: 600x15x2mm

Weights

1x 5N (hanger)

3x 5N

Measuring ranges

force: 2…5kN

travel: 0…10mm, graduation: 0,01mm

 

 

 Experiments

  1. Investigation of buckling behaviour under the influence of
  2. Different supports, clamps
  3. Different cross-sections
  4. Different materials
  5. Additional shear forces
  6. Testing Euler’s theory: buckling on elastic bars
  7. Measure force and displacement
  8. Calculate the expected buckling force with Euler’s buckling formula
  9. Graphical analysis of the deflection and the force

 

Required Services

Bench space needed: 1 m x 0.6 m

Model Number

MT 065