Question
Download Solution PDFWhich of the following properties of a composite material can be computed by means of a rule of mixtures?
I) Mass
II) Volume
III) Density
IV) Melting point
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Rule of Mixtures:
- The properties of composite material are a function of the starting materials. Certain properties of composite material can be computed by means of a rule of mixtures, which involves calculating a weighted average of the constituent material properties.
The mass of composite material is the sum of the masses of the matrix and reinforcing phases
Mc = Mr + Mm
Volume of composite
Vc = Vm + Vm + Vv
Density of Composite
\(ρ _c = \frac {M_c}{V_c}= \frac {M_m \ +\ M_r}{V_c}\)
Mm = ρm Vm & Mr = ρr Vr
\(ρ _c = \frac {\rho _m V_m \ +\ \rho_r V_r}{V_c}\)
Melting point cannot be evaluated by using the rule of mixture.
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