Theory of Structures

A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm² and Poisson’s ratio is 0.25, the change in the volume of the bar is:

  • A. 1.125 cm³
  • B. 2.125 cm³
  • C. 3.125 cm³
  • D. 4.125 cm²
Answer: Option C.

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