Deformation of Trusses Model MT 032

When a component is placed under load it undergoes elastic deformation. This deformation can be calculated by determining elastic lines for example. Elastic lines describe the deformation of the complete component in the form of a mathematical equation. In reality, it is often only the deformation at specific points on the component which is of interest. Energy methods can be applied to determine these deformations more simply. Castigliano’s first theorem uses energy methods to calculate the deformation of a point on the component. The theorem is applicable to both statically determinate and indeterminate systems.
Sci-tech Deformation of Trusses Model MT 032, the deformation of a single plane truss at one point is determined using Castigliano’s first theorem.

Item Description

* Elastic deformation in a single plane truss1
* Construction of various truss forms1
* Application of Castigliano’s first theorem

Technical Specifications

[1] investigation of the deformation of statically determinate trusses
[2] construction of different truss forms possible
[3] 2 supports with node discs
[4] load application device with force measurement dial gauge mountable on different node discs
[5] dial gauge to record the deformation of the truss under load
[6] cross arm for lateral stability of truss
[7] storage system to house the components
Technical Specifications
Truss with 19 PVC bars
– height of truss max. 450mm
– length of truss max. 900mm
– bar lengths
2x 150mm
5x 259mm
7x 300mm
1x 397mm
3x 424mm
1x 520mm
– angle between bars: 30°, 45°, 60°, 90°
– maximum bar force: 200N
Load application device
– measuring range: -500…+500N, graduations: 10N
Dial gauge
– measuring range: 0…0,10mm, graduations: 0,01mm