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A steel bar 50 mm x 50 mm in section, 3m long is subjected to an axial pull of 20kN. Calculate the change in length and change in side of the bar. Take E = 200 GPa and Poisson's ratio = 0.3.
written 4.7 years ago by gravatar for teamques10 teamques10 ★ 65k modified 2.2 years ago by gravatar for sagarkolekar sagarkolekar ★ 11k
engineering mechanics
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written 4.7 years ago by gravatar for teamques10 teamques10 ★ 65k

Data: b=50 mm, d =50 mm, L=3m, P = 20 kN, E = 200 GPa μ = 0.3 Calculate: δL, δb, and δd

$\delta \mathrm{L}=\frac{\mathrm{PL}}{\mathrm{AE}}$

$\delta \mathrm{L}=\frac{20 \times 10^{3} \times 3 \times 10^{3}}{50 \times 50 \times 200 \times 10^{3}}$

$\delta \mathrm{L}=0.12 \mathrm{mm}$

$\begin{aligned} \mu &=\frac{\text {Lateral Strain }}{\text {Linear Strain …

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