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Assertion (A): A buckled compression panel is treated as only partly effective in bending.

Reason (R): After buckling, the middle of the panel sheds load while material near the stiffeners keeps carrying it.

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

Both are true and the second explains the first. Counting an effective width attached to each stiffener reproduces the load the panel really carries. Treating the panel as fully effective would overstate the section's bending capacity.

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