Basic property examples of fibre composites

Fulcrum, Plytron,SUPreM, Tepex,Towflex, TPS, Twintex. .. 

For a beam of width b, the formula for flexural rigidity (D) can be expressed as  

Ec is negligible compared to Ff and the last term can be omitted to lead to a simpler expression  

if we compare various sandwich structures of the same materials and same facings with increasing core thickness only, we can write  

Considering another point of view, Swedish manufacturer DIAB quotes an example of a sandwich and a laminate of approximately the same flexural rigidity the laminate is 2.8 times heavier than the sandwich panel. 

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Table 6.36 Basic property examples of fibre composites...

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