Advanced Textiles

Composite Fibre Volume Fraction Calculator

Weight fraction is what you measure; volume fraction is what carries the load.

Constituents Measured masses
g
g
Densities Material data
g/cm3
g/cm3
g/cm3

Fibre Volume Fraction

— %

Volume of reinforcement in the laminate

Laminate Composition

Matrix Volume Fraction
— %
Fibre Weight Fraction
— %
Theoretical Density
— g/cm3
Void Content
— %

Volume Composition

—% fibre —% resin

Void content above 2% costs interlaminar shear strength sharply. Aerospace laminates are normally held below 1%.

Composite Fibre Volume Fraction Calculator — free, with the formula and a worked example, at Textile School.