HST45 Buckling of Struts

Spring steel specimen struts are supported between two chucks; one in the top of the apparatus and one within the screwjack loading mechanism. The chucks have a integral precision slot into which the test strut ends can fit. alternatively a knife-edge block can be fitted into the chucks which mate with equi-spaced 'V' grooves in the end face of the specimen ends. This variety ensure that pinned/pinned, fixed/pinned or fixed/fixed end conditions are created.

The struts are compressed using the loading mechanism supplied. As the strut starts to deform, the amount of deflection is recorded using a dial gauge. The dial gauge can be moved up and down the strut length so that the deflection can be seen at various points.

Both the load cell output and dial gauge output must be fed directly into the HDA200 Interface (sold separately).

A comprehensive instruction manual for lecturer and student, giving full details on apparatus assembly and operation as well as example results. All necessary assembly and operational tools are provided.

Essential accessories: HST1, HDA200

  • To have spring steel specimen struts of differing length
  • Strut dimensions: 25 x 1.6mm x 350/400/450/500mm length
  • To have ability to change end fixing conditions of struts
  • To measure transverse deflection of struts
  • To be loaded axially by loading mechanism with integral load cell
  • Must be used with HST1 universal Frame and Stand (sold separately)
  • Must be used with HDA200 Interface (sold separately)
  • Comprehensive instruction manual provided
  • 2 year warranty
  • Euler's theory
  • Varying end conditions against Euler's buckling load
  • Varying strut length against Euler's buckling load