Unsymmetrical Cantilever
Model Number: SM1003
Investigate cantilever deflection, principal moments of area, and shear centre with accurate two-axis measurement.
Overview
A bench mounting apparatus to allow students to investigate the deflections of unsymmetrical cantilevers. The Unsymmetrical Cantilever Apparatus allows students to load a cantilever and accurately measure its deflection in any coplanar direction. Students mount a test beam vertically in a frame. The top of the test beam fixes to a holding ring that can rotate through 360 degrees. Students apply a horizontal load in set increments to the bottom (free end) of the test beam. Digital indicators measure the test beam deflections in two directions, at right-angles to each other. Students can then rotate the beam to another position and repeat the experiment. This allows students to use the Mohr’s circle method to find the principal second moments of area of each section. To find the shear centre of a test beam, students attach a cross-piece to the free end so loads can be applied at different positions across and outside the section of the cantilever.
Features
- Bench mounting apparatus for investigating unsymmetrical cantilever deflection
- Accurately measures deflection in any coplanar direction
- Holding ring rotates through 360 degrees
- Two digital indicators measure deflection in perpendicular directions
- Horizontal loading applied in set increments
- Cross-piece allows load application across and outside the section
- Supports Mohr’s circle analysis for principal second moments of area
- Connects to optional VDAS® for real-time data capture, monitoring, calculation, and charting
Specifications
- Bench mounting apparatus
- Test beam mounted vertically in a frame
- Holding ring rotates through 360 degrees
- Horizontal load applied to the free end in set increments
- Two digital indicators measure deflection in two directions at right angles to each other
- Each indicator includes a socket and additional cable for connection to VDAS®
- Cross-piece allows loads to be applied at different positions across and outside the cantilever section
Learning Outcomes
- Vertical and horizontal displacement measurement for varying angles of applied load
- Demonstration that maximum and minimum vertical deflection occurs when horizontal deflection is zero
- Use of Mohr’s circle
- Experimental and theoretical determination of the principal moments of area of test sections
- Location of shear centre of each section
Items Included
- Frame
- Test beam
- Holding ring
- Weights for set increment loading
- Two digital indicators
- Additional cables for indicator connection
- Cross-piece for shear centre investigations
- User guide with practical theory, experiment procedures, and typical results