ISRO Mechanical & Aerospace 2020 - Question 66

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If S is the applied stress, c is the width of the crack and r the radius of curvature at the tip of the crack, Griffith's crack theory gives the concentrated stress Sc as

  • A. 2S(c/r)^(1/2)
  • B. 2S(c/r)^(1/3)
  • C. S(c/r)^(1/2)
  • D. 2S(2c/r)^(1/2)

Answer: A. 2S(c/r)^(1/2)

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