• Measurement of collapse load for a mild steel beam.
  • Study of extra load carried as beam is made redundant by end fixing.


  • Demonstration of the theory of plastic bending of a beam section, and increase in bending moment due to redundancy.
  • The apparatus provides two end supports which allow for rigid clamping or simple support of the mild steel beams.
  • One support allows for horizontal travel.
  • Three (3) test beams supplied.
  • A screw jack with integral load cell, capable of applying loads 500N is provided.
  • Deflection measurement available.
  • Applied force and deflection viewed via display unit (not supplied).
  • Must be used with universal Frame and Stand (sold separately).
  • Must be used with display unit (sold separately).
  • Comprehensive instruction manual provided.

The experiment hardware provides two end supports; one for completely rigid end fixings, whilst the other giving horizontal travel. Both supports create simple supports (knife edges) and have clamp plates which created fixed ends by restricting the end rotation of the test beam.

The test beams have a single point load applied using the fine screw jack mechanism with integral load cell supplied. The displacement of the test beam within its elastic and plastic regions is measured using a vernier gauge and this along with the load cell output connect display unit (sold separately).

A set of mild steel beams are supplied with further sets available. 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.