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Department
Earth, Space Science and Engineering
Course
ESSE 2470
Professor
All Professors
Semester
Winter

Description
EATS 2470 Introduction to Continuum Mechanics Instructor: Peter Taylor; TA Shama Sharma Lab #3: Beam Bending: March 8 and 15, 2011 14:30-17:30 @ PSE 133 Purpose: The aim of this lab is to determine Young’s modulus for steel and aluminum bars by measuring the amount of deflection beams of known cross section undergo under a specified load, and to plot the comparisons between theoretical and observed values of displacement at positions along the beam. Case 1: Beam is supported at both ends and single load at the centre 1. First find the length (l) of the beam using metre scale. Then 2. Measure width (w) and thickness (h) of the beams using Vernier Callipers. 3. Find moment of Inertia of the beam cross section using Formula 4. Complete the observations for Case1 using two masses for each beam. Material Mass Deflection Deflection Deflection Deflection Deflection Young at centre, at position at position at position at position Modulus for (kg) x0 (mm) x1 (mm) x2 (mm) x3 (mm) x4 (mm) position x0 Steel 0 kg I = (m ) Aluminum 0 kg 4 I = (m ) 5. Use your observations for maximun deflection(y) at the centre to find Young’s modulus (E) 3 for both of the beams using the formula, ymax
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