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Stiffness aramid/epoxy

Advanced composites have been used most extensively in helicopters. Sikorsky s S-75 helicopter, for example, is about 25% composite by weight, mostly graphite-epoxy and aramid-epoxy composite materials. Composites are used in rotors, blades, and tail assemblies. Future military helicopters are likely to comprise up to 80% advanced composites by structural weight. Graphite-epoxy composites are likely to be used in the airframe, bulk-heads, tail bones, and vertical fins, while the less stiff glass-epoxy composites will be used in rotor systems. [Pg.775]

Small deviations from the intended fibre orientation within a nominally unidirectional ply can reduce the mechanical strength and stiffness of continuous fibre laminates considerably, especially with aramid reinforcement. Wisnom [6] has investigated the reduction in strength caused by misalignment of unidirectional carbon fibres in XAS/914 carbon/epoxy... [Pg.44]

See other pages where Stiffness aramid/epoxy is mentioned: [Pg.199]    [Pg.3]    [Pg.620]    [Pg.663]    [Pg.94]    [Pg.266]    [Pg.560]    [Pg.323]    [Pg.27]    [Pg.241]    [Pg.428]    [Pg.248]    [Pg.316]    [Pg.560]    [Pg.79]    [Pg.237]    [Pg.1639]    [Pg.264]    [Pg.330]    [Pg.223]    [Pg.565]    [Pg.428]    [Pg.357]    [Pg.363]    [Pg.553]    [Pg.189]   
See also in sourсe #XX -- [ Pg.330 ]



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Epoxy stiffness

Stiff Stiffness

Stiffness

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