demonstration of buckling in bars
- 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.
- The SE 110.57unit can be 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.
- The entire experimental setup is constructed in the SE 112mounting frame.
- clear demonstration of elastic buckling
- load mechanism for applying forces
- test bars pinned or fixed
- devices for generating shear forces with staggered weights
- measurement of lateral deflection with a dial gauge
- test bars of different materials: steel and aluminium
- storage system for parts
- experiment setup in the SE 112 mounting frame
- Test bars
- 3x steel, L x W x H: 600x20x4mm
- 2x aluminium, L x W x H: 600x25x6mm
- 1x aluminium, L x Ø: 600x10mm
- 1x aluminium, L x W x H: 600x15x2mm
- 1x 5N (hanger)
- 3x 5N
- Measuring ranges
- force: 2…5Kn
- travel: 0…10mm, graduation: 0,01mm
Dimensions & Weight:
- L x W x H: 1170x480x178mm (storage system)
- Weight: approx. 30kg (total)
- investigation of buckling behaviour under the influence of
- different supports, clamps
- different cross-sections
- different materials
- additional shear forces
- testing Euler’s theory: buckling on elastic bars.
- measure force and displacement
- calculate the expected buckling force with Euler’s buckling formula
- graphical analysis of the deflection and the force
Scope of delivery:
- 1 load mechanism
- 1 set of test bars
- 1 support
- 2 dial gauges
- 1 cable
- 1 pulley
- 1 set of weights
- 1 storage system with foam inlay
- 1 set of instructional material
- test bars made of different materials and for different support types
- experiments with eccentric application of force and shear forces
- Required: SE 112 Mounting frame
Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.