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The transverse modulus of a lamina is estimated by

  • A.The inverse rule of mixtures
  • B.The rule of mixtures
  • C.The fibre modulus alone
  • D.The sum of the two moduli

Answer: A

Across the fibres the constituents carry the same stress rather than the same strain, so their compliances add. The result sits close to the matrix value, which is why transverse properties are so much poorer than longitudinal ones.

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