Volumetric shrinkage from linear shrinkage

Calculates mold dimension from part dimension and user-provided shrinkage.

Calculates plastic mass from volume and user-provided density; it does not use a plastics database.

Calculates helper length change from user-provided initial length, expansion coefficient, and temperature change.

Calculates allowable stress as strength divided by safety factor.

Calculates simplified allowable stress from ultimate strength and safety factor.

Calculates aluminum plate mass from area, thickness, and user-provided density.