### Discussion :: Steel Structure Design - Section 2 (Q.No.39)

Kush said: (Sep 20, 2016) | |

Pure bending equation: (F/Ymax) = (M/I) = (E/R). Put, Ymax = 2y/2 = y. I = Ar^2 in the above equation. Then we get the answer A. |

Chhaya said: (Apr 28, 2017) | |

F/Y = M/I, F = MY/I, r = sqrt I/A, I = Ar2. By substituting the values, you will get the answer. |

Arifkhan said: (Apr 14, 2020) | |

We have: F=My/I. Also, I=√(I/A)=> I= r^2*A. Now F =My/r^2*A => A= My/fr^2. |

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