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Assertion (A): Bolted joints in composites cannot rely on local yielding to share load between fasteners.

Reason (R): Composite laminates behave essentially elastically up to failure.

Select the correct answer from the options below.

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

Answer: A

Both statements are true and the second is the reason for the first. A metal redistributes plastically around a hole and evens out the fastener loads; a composite does not, so the elastic peak is what the joint actually experiences.

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