AM 317 Experiment 1 Essay

1992 Words Mar 1st, 2015 8 Pages
AM 317
MECHANICS LAB
EXPERIMENT 1
BEAM DEFLECTIONS
TEST PERFORMED: FEBRUARY 4, 2015
REPORT SUBMITTED: FEBRUARY 11, 2015
BY
HAGOP MERTEKHANIAN
Student I.D # 105200288
Wednesday 7:00 pm
GROUP 1

ABSTRACT
Deflections of a beam are important to be able predict the amount of deflection for a given loading situation. This experiment addresses determining the yield point for a material to fail, so the stress in the material does not have to reach to that point. This is where understanding beam deflection becomes a useful tool. This experiment is using beam deflection theory to evaluate and compare observed deflection per load values to theoretical values. Beam deflection experiment done by four parts. Part 1 -Simple Supported Bean, part
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(LB)
I-moment of inertia (IN4)
E- The modulus of elasticity.(Psi)
Ymax-amount of the deflection due to applied load (IN).

L-length of the beam.(IN) a- distance from beginning of the beam to the reference point (IN)
P-single applied concentrated load.(LB)
I-moment of inertia (IN4)
E- The modulus of elasticity.(Psi)
Ymax-amount of the deflection due to applied load (IN).
Test Procedures
Part 1- Simple Supported Beam
1. Calibrate the micrometer.
2. Measure the dimensions and record them.
3. Calculate area moment of inertia (I) using the equation-4
4. Calculate maximum permissible loads for mid-span using equation-3,where maximum stress = 18,000 psi
5. Calculate maximum permissible loads for quarter-span using equation-3, where maximum stress