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A fuselage cut-out is \( 1.0 \) m long in a shell carrying a shear flow of \( 90 \) kN/m. The total shear load to be diverted round it is

  • A.45 kN
  • B.180 kN
  • C.9 kN
  • D.90 kN

Answer: D

The flow acts over the length of the opening, so \( 90 \times 1.0 = 90 \) kN must find another path. Spreading that load into the surrounding structure without a large local stress peak is what the edge members and doublers are sized to do.

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