- Demonstrate the difference in stiffness between the two directions of bending
- Show that I-Beams twist easily
- Do quantitative studies using a Force Sensor and a Motion Sensor
Item, Part Number
This Flexible I-Beam is made of plastic so it can be visibly bent by hand. It shows the basic reasons for using this cross-section in construction. It is four times as stiff in the upright orientation as it is sideways. The beam does not sag under its own weight and returns to its original straightness after bending.
Warming the beam makes it less stiff and cooling makes it more stiff.