Penetration
causes fluke forces, shank forces and mooring line forces.
Phase
4
The fluke and
the shank are completely covered by sand. When there is still no equilibrium,
a part of the mooring line will enter the soil. The
mooring line penetration will lead to an extra factor which will cause penetration
resistance.
The anchor becomes
stable when there is a balance between the vertical and horizontal forces
on the anchor part, which is covered by sand.