VDAS Onboard STS2 - Experimento

Bending Moments in a Beam (Next Generation Structures)

Experiment that illustrates and proves the basic theory of bending moments in a beam. Mounts on the Structures platform and connects to the Structures automatic data acquisition unit and software.

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Description

Bending Moments in a Beam (Next Generation Structures)

One of a range of experiment modules that fi t to the Structures platform (STS1, available separately), this product helps students to understand how loads affect the bending moment in a beam.

Students apply loads to hangers suspended along the beam, held between two supports. One support allows rotational movement only, acting as a pinned support. The other support allows translational movement, acting as roller support. A load cell at the cut at mid-span of the beam measures the bending moment due to the load. The beam has a central span with an overhanging end, so that students can create both positive and negative bending moments (‘sagging’ and ‘hogging’).

Each support includes pointers that work with the scale on the platform for accurate positioning. Students use textbook equations to predict the bending moments due to the load, comparing them with measured results, and learn how to create the infl uence line and bending moment diagrams. This helps confirm the reliability of the textbook equations and the accuracy of the experiment results.

This product includes a uniformly distributed load (UDL) that may be applied across the span of the beam for comparison of results with a single point load.

The load cell connects to the USB interface hub of the Structures platform for computer display and data acquisition.

Learning outcomes

• Bending moment at the cut due to a varying single point load

• Bending moment at the cut due to a moving single point load

• Bending moment at the cut due to a uniformly distributed load

• Influence lines and superposition

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Essential Base Units
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