Composite rule-of-mixtures modulus

Calculates helper composite density from user-provided fiber volume fraction and fiber and matrix densities.

Calculates helper laminate thickness from user-provided ply count and single-ply thickness.

Calculates fiber and matrix volumes, masses, theoretical density, and mass fractions from total volume and fiber volume fraction.

Estimates the volume fraction of an identifiable phase from the phase point count and total grid point count.

Calculates allowable stress as strength divided by safety factor.

Calculates simplified allowable stress from ultimate strength and safety factor.