Question 3.2: For the round bar subjected to the tensile load shown in Fig...

Machine Elements in Mechanical Design [EXP-45119]

For the round bar subjected to the tensile load shown in Figure 3-6, compute the total deformation if the original length of the bar is 3600 mm. The bar is made from a steel having a modulus of elasticity of 207 GPa.

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Objective Compute the deformation of the bar.

Given Force = F = 9500 N; diameter = D = 12 mm.
Length = L = 3600 mm; E = 207 GPa

Analysis From Example Problem 3-1, we found that a = 84.0 MPa. Use Equation (3-3).

$\delta =\sigma L/E$ (3-3)

Results

$\delta =\frac{\sigma L}{E}=\frac{(84.0 \times 10^6 N/m^2) (3600 \ mm)}{(207 \times ^6N/m^2)}= 1.46 \ mm$

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