A composite material is made up of 6 layers of unidirectional carbon in an epoxy matrix. Calculate the stiffness of the composite if the stiffness of the carbon and resin is 42 GPa and 3.3 GPa respectively and the fibre volume fraction is 24%.

This video demonstrates a basic tensile test. Tensile testing, or tension testing, is a type of mechanical test used to determine how a material responds to a stretching force. This test helps to evaluate the mechanical properties of a materials.

In a tensile test a a load is applied to a specimen. The load is gradually increased until failure. 

This video details a basic vacuum resin infusion process for the manufacture of a carbon fibre and epoxy composite. 

This video shows a summary of the basic vacuum resin infusion process for the manufacture of a carbon fibre and epoxy composite.

Calculate the theoretical density of Iron in g/cm^3. Given that the Atomic Weight is 55.847 g/mol. The lattice parameter, a = 286.6 pm (picometers), and Avogadro’s constant Na = 6.02x10^23 atoms/mol.