46 C.F.R. § 154 app A to Part 154
Current through September 30, 2024
I. Equivalent stress ([SIGMA] c) is calculated by the following formula or another formula specially approved by the Commandant (CG-522) as equivalent to the following:
where:
[SIGMA]x = total normal stress in "x" direction.
[SIGMA]y = total normal stress in "y" direction.
Axy = total shear stress in "xy" plane.
II. When the static and dynamic stresses are calculated separately, the total stresses in paragraph I are calculated from the following formulae or another formulae specially approved by the Commandant (CG-522) as equivalent to the following:
III. Each dynamic and static stress is determined from its acceleration component and its hull strain component from hull deflection and torsion.
46 C.F.R. 154 app A to Part 154