QUESTION 2 2.1. From the information provided below of the nominal engineering constants of a unidirectional...

QUESTION 2
2.1. From the information provided below of the nominal engineering constants of a
unidirectional graphite epoxy ply. Where the fibre volume fraction is reduced from
60% to 55%. Estimate the modulus of the reduced fibre volume fraction. (10)
E1
(GPa)
E2
(GPa)
G12
(GPa)
?12
When nominal ?? = 0,6 148 9,65 4,55 0,3
Back calculated ?? = 0,5
Rule of mixtures 136 - - 0,304
Modified rule of mixtures - 9 4,14 -

Expert Solution

Ally Wells answered 1 year ago

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