Question

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m = 1kg (placed onto hanger at the end of the lever)
Deflection of the lever (max shear strain) = 0.66 millimeters
Today
Test the round bars, of dimensions 340 mm, d-10 mm, of different materials.
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Answered:
Determine the rotation angle, that the round beam has rotated based on the deflection of the lever.
The dimensions of the lever are shown in Figure 14. Add this to the table.
The maximum shear strain can then be calculated from:
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Ymer
Where c[m) is the radius, pſrad) the angle of the deformation and L [m] the length of the round bar.
Ensure you consider the bar distance between attachment points (in this case 300 mm).
The shear stress is connected to the shear strain by:
Gr
Where G (Pal is the Modulus of Rigidity. The maximum shear stress occurs at:
mar
WhereT[Nm) is the torsion, Jim') is the polar moment of inertia, which for a circle is) = RC
Please help to calculate the Modulus of Rigidity "G'I These values were measured. And the
theoretical value was 25 Giga Pascals (GPa)

Answer 1

Answer:

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