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Fastener load distribution in a multi-row joint is typically

  • A.Greatest in the middle row
  • B.Uneven, the end rows carrying most
  • C.Perfectly even across all rows
  • D.Zero in the end rows

Answer: B

The outer rows pick up more load because of the differential stretching of the two sheets along the joint. The effect grows with the number of rows and with the stiffness mismatch, and it is why the end fasteners are the usual fatigue origins.

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