Numerical - Maximum stress, given - area & sudden load

Q.  What is the maximum stress induced in a bar 2500 mm2, when a load of 2000 kN is applied suddenly?
- Published on 21 Sep 15

a. 400 N/mm2
b. 800 N/mm2
c. 1600 N/mm2
d. Insufficient data

ANSWER: 1600 N/mm2

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    Discussion

  • rasheed   -Posted on 21 Dec 16
    force applied in sudden loading is twice the force applied gradually
    F'=2F
    Formulae -stress=2F/A
    F=2000KN
    A=2500 mm2
  • Sravanthi   -Posted on 24 Nov 15
    Given: Area of bar = 2500 mm2 , load applied = 2000 kN

    Formula: σ = (2F/A)

    Solution:

    σ = (2F/A)

    = (2 x 2000 x 103) / 2500

    = 1600 N/mm2

    Maximum stress induced in a bar due to suddenly applied load is 1600 N/mm2

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