Question

⦁ A large-particle composite consisting of tungsten particles within a copper matrix. If the volume fractions of tungsten and copper are 0.82 and 0.18, respectively, estimate the upper limit for the specific stiffness of this composite, using the data given in the table below. [10 marks] Density Modulus of Elasticity (GPa) Copper 8.9 110 Tungsten 19.3 407

Answer 1

Answer:

A large-particle composite consisting of tungsten particles within a copper matrix is to be prepared. If the volume fractions of tungsten and copper are 0.70 and 0.30,  respectively, estimate the upper limit for the specific stiffness of this composite given the data that follow.

Specific Gravity  Modulus of Elasticity (GPa)

Copper  8.9                  110

Tungsten       19.3                407