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Assertion (A): A buckled compression panel is credited with only an effective width of working skin.

Reason (R): After buckling the middle of the panel sheds load while material near the stiffener does not.

Select the correct answer from the options below.

  • A.A is true but R is false
  • B.A is false but R is true
  • C.Both A and R are true, and R is the correct explanation of A
  • D.Both A and R are true, but R is not the correct explanation of A

Answer: C

Correct answer: Both A and R are true, and R is the correct explanation of A

Both are true and the reason gives the mechanism. Once a panel buckles, its middle can carry no more load and sheds it, while the material along the stiffener is restrained from buckling and continues to take stress. Only that strip is credited, and the panel is treated as a narrow band of fully effective skin either side of the stiffener with nothing in between.

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