slug/ft
slug per foot
Linear mass densityexact by definition
The slug per foot is exactly 47.88025898033584 kg/m. It is the mass per unit length used in US customary structural dynamics and beam vibration, where the natural frequency formulas expect mass in slugs so that the answer comes out in radians per second without a g_c.
Watch out: Beam weight is usually tabulated in pounds per foot and the vibration formula wants slugs per foot, so a division by 32.174 sits between the steel table and the frequency. Skipping it puts the natural frequency out by a factor of 5.67.
| 1 slug/ft | 47.880259 kg/m |
Solvers that use linear mass density