Structures - Bending Stress

This video demonstrates the Matrix Bending Stress experiment using data acquisition mode, allowing students to investigate how bending loads create stress within a beam. Using the included curriculum workbook, learners configure strain gauges, collect real-time measurement data, and perform engineering analysis to validate theoretical calculations.

Students begin by configuring a quarter-bridge Wheatstone bridge circuit using strain gauges and precision resistors before applying incremental loads to the beam. As each load is added, measurements are captured through the integrated data acquisition system and exported for analysis. The resulting data allows students to calculate bending stress, compare theoretical and experimental results, and gain practical experience with strain measurement techniques used throughout structural and mechanical engineering.

What You'll Learn

• How to configure a quarter-bridge Wheatstone bridge using strain gauges
• Setting up the Bending Stress experiment using data acquisition
• Applying incremental loads to investigate bending stress
• Collecting real-time strain measurements using integrated sensors
• Measuring beam dimensions for engineering calculations
• Exporting experimental data for post-laboratory analysis
• Comparing theoretical bending stress calculations with measured results
• Developing practical skills in experimental stress analysis

Why Study Bending Stress?

Measuring bending stress is fundamental to understanding how structural components perform under load. This experiment introduces students to strain gauge technology, Wheatstone bridge circuits, and modern data acquisition methods while reinforcing core concepts in mechanics of materials, structural analysis, and engineering design.