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Mechanical Engineering QUESTION #2512
Question 1
The curvature \(1/\rho\) of a beam's neutral axis under bending moment \(M\) is:
  • \(\frac{1}{\rho} = \frac{EI}{M}\)
  • \(\frac{1}{\rho} = \frac{M}{EI}\)✔️
  • \(\frac{1}{\rho} = \frac{E}{MI}\)
  • \(\frac{1}{\rho} = \frac{MI}{E}\)
Correct Answer Explanation
From the bending stress derivation: \(1/\rho = M/(EI)\). The product \(EI\) is called the flexural rigidity and resists bending curvature.