For a metallic rod heated through ΔT with Y and α (thermal expansion) …

Question

For a metallic rod heated through ΔT with Y and α (thermal expansion) and rigidly held:

Accepted Answer

D. Stress = Y × α × ΔT (thermal stress)

**Constrained:** thermal expansion ΔL/L = α ΔT must equal compressive strain. Stress = Y × α × ΔT.
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Answer

Stress = αT

Answer

Stress = 0

Answer

Independent of α

For a metallic rod heated through ΔT with Y and α (thermal expansion) and rigidly held:

Keep practising Unit 2A: Newton's Laws and Translational Equilibrium