calculate the stress applied to a metal bar which is part of a frameand has a 50mm radius and is 300mm long,calculate the stress applied when a 40kN force acts on it.
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Explanation:
We calculate the strain is the rod according to the formula: ε = ΔL/L₁ = 3/2000 = 0.0015 . We calculate the stress, using the stress formula: σ = F/A = 30*10³ / (1*10⁻⁴) = 300*10⁶ = 300 MPa .
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