Description
One of a range of experiment modules that fi t to the Structures platform this product helps students to understand the bending stresses at various positions of a beam section due to a load. Students add loads to an inverted T-section beam held on two supports. Strain gauges at different heights up the beam measure the strains due to the load. A load cell measures the force applied at the mid span of the beam. Students apply the load and measure the resulting strains. They use textbook beam equations to predict the stresses and bending moments for any given load, comparing them to measured results. This helps confirm the reliability of the textbook equations and the accuracy of the experiment results. This product includes a Vernier caliper for accurate measurement of the beam cross-section. The strain gauges connect to a strain gauge amplifier, which connects (with the load cell) to the USB interface hub of the Structures platform for computer display and data acquisition (VDAS® Onboard).
Learning outcomes
Stress and strain relationship
• Strain gauges as instruments
• Finding the neutral axis by experiment and calculation
• How the beam cross-section dimensions affect the second moment of area (I value) and neutral axis
Specifications
ATICO is committed to a programme of continuous improvement; hence we reserve the right to alter the design and product specifcation without prior notice.
Dimensions and weight:
• Nett (assembled): 850 mm long x 130 mm front to back and 500 mm high and 14 kg
• Approximate primary packed (with storage tray): 0.08 m3 and 16 kg
Space Needed:
• 1500 mm x 600 mm, level bench or desk
Items Included:
• Two beam supports
• T-section beam with nine strain gauges. 0.85 m length and 0.7 m span
• Strain gauge amplifi er, 16 input
• Load cell of maximum capacity 650 N
• Nine 1 m strain gauge cables
• Two cables
• Hexagon tools for beam fi xings
• Vernier caliper
• Inclinometer
• Storage tray
• Comprehensive user guide
Operating Conditions
Operating environment:
Laboratory
Storage temperature range:
–25°C to +55°C (when packed for transport)
Operating temperature range:
+5°C to +40°C
Operating relative humidity range:
80% at temperatures < 31°C decreasing linearly to 50% at 40°C
