Essay About Experimental Method And Moment Variation

Bending Beam
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SECTION 2 EXPERIMENTS
Bending Moment Variation at the point of loading
Experimental Results
Mass (g)
Load (N)
Force (N)
Experimental
Bending
Moment (Nm)
Theoretical
Bending
Moment
0.9800
0.6000
0.0750
0.3118
1.9600
1.5000
0.1875
0.6236
2.9400
2.4000
0.1875
0.9355
3.9200
3.1000
0.3875
1.2473
4.9000
3.7000
0.4625
1.5591
Theoretical Method To Calculate Bending Moment At The Cut
To determine an expression for Bending Moment at the cut of the beam is calculated using the following diagram.
RA-Rolling Pivot
RB-Rolling Pivot
W-Weight of the Loading
a-Distance between the left hand side pivot and the cut of the beam
l-Distance between both the pivot
The theoretical moment at the cut will be found using the following Equation.
Bending Moment at the Cut=Wa(l-a)/l
Wa- Weight of the loading in Newtons (N)
l-440mm
a-300mm
When the mass of the load is 100g,
BM at the cut=0.98((0.44-0.30)/0.44)Nm=0.3118 Nm
When the mass of the load is 200g,
BM at the cut=1.96((0.44-0.30)/0.44)=0.6236 Nm
When the mass of the load is 300g,
BM at the cut=2.94((0.44-0.30)/0.44)=0.9355 Nm
When the mass of the load is 400g,
BM at the cut=3.92((0.44-0.30)/0.44)=1.2473 Nm
When the mass of the load is 500g,
BM at the cut=4.90((0.44-0.30)/0.44)=1.5591 Nm
Experimental Method to calculate Bending Moment at the Cut
The experimental Moment at the cut will be found using the following Expression,
BM at the Cut=Displayed Foce×0.125 Nm
When the mass of the load is 100g,
BM at the cut=0.60×0.125 Nm=0.075Nm
When the mass of the load is 200g,
BM at the cut=1.50×0.125 Nm=0.1875 Nm
When