GATE ME 2019 ME Q39: Mechanics of Materials

Consider an elastic straight beam of length

m, with square cross-section of side

mm, and Young’s modulus

GPa. This straight beam was bent in such a way that the two ends meet, to form a circle of mean radius

. Assuming that Euler-Bernoulli beam theory is applicable to this bending problem, the maximum tensile bending stress in the bent beam is ______ MPa.

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