In order to reduce the material cost, an engineer decides to use a hybrid beam instead of
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Question:
In order to reduce the material cost, an engineer decides to use a hybrid beam instead of an all-carbon-fiber beam. Both beams have the same overall dimensions with rectangular cross-sections. The hybrid beam contains carbon fibers in the outer layers and E-glass in the core. The costs of the materials are as follows:
Carbon/Epoxy: $ 20/kg
E-glass/Epoxy: $1.10/kg
The densities of carbon/epoxy and E-glass/epoxy composites are 1.70 g/cm^3 and 2.10 g/cm^3 respectively. The total carbon fiber thickness in the hybrid beam is equal to the core thickness. Compare the percentage weight penalty and cost savings for the hybrid beam over an all-carbon-fiber beam.
Related Book For
Materials and process in manufacturing
ISBN: 978-0471656531
9th edition
Authors: E. Paul DeGarmo, J T. Black, Ronald A. Kohser
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