Question

1. Composite materials are to be prepared with the following compositions (by volume):

-20% glass fiber reinforced polypropylene

-epoxy reinforced by 25% carbon fiber and 25% Kevlar fiber.

In each case, please find the mass of each constituent required per unit mass of composite. The densities (in kg m^-3) are glass fiber 2540; polypropylene 900; carbon fiber 1790; Kevlar fiber 1450; and epoxy 1300.

Answer 1