Civil Engineering MCQAE Level Civil Engineering
A steel cube (E=200 GPa, ν=0.3) under equal compressive stresses of 100 N/mm² on all faces. Volumetric strain:
Strength of MaterialsVolumetric Strain HydrostaticHARD
Choose the correct answer
A
−1.5 × 10⁻³
B
−1.0 × 10⁻³
C
−0.5 × 10⁻³
D
−0.25 × 10⁻³
Correct Answer
A. −1.5 × 10⁻³
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εv = 3σ(1−2ν)/E = 3×(−100)×0.4/200,000 = −1.5×10⁻³
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