Physics · Thermal Expansion
Consider a composite bar made of two different materials, A and B, fixed between two rigid supports. When the temperature increases, if the materials were allowed to expand freely, material A would expand more than material B. If the free expansion is prevented by the rigid supports to reach an equilibrium condition, then which of the following is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Tensile force exerted by material B on A is equal to tensile force exerted by A on B
- 2Tensile force exerted by material B on A is equal to compressive force exerted by A on B✓
- 3Compressive force exerted by material B on A is equal to tensile force exerted by A on B
- 4No force acts on the composite member in equilibrium condi tion
Correct answer
Tensile force exerted by material B on A is equal to compressive force exerted by A on B
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