Product: ABAQUS/Standard
A four-step single-element test is performed for two-dimensional and three-dimensional joint elements. The tests include conical and cylindrical cross-sections, with both diagonal and fully populated elastic stiffness material cases. The behavior of the joint elements is defined in a local coordinate system using the *ORIENTATION option, and the *TRANSFORM option is used to output the results in the same coordinate system.
Seven different spud can models are used:
Two-dimensional cylindrical spud can, 
= 1.6, with general moduli, 
= 2000, 
= –1000, 
= 3000, 
= –2000, 
= 0.0, 
= 6000.
Two-dimensional cylindrical spud can, = 1.25, with spud can moduli 
= 840.0, 
= 1643.0, 
= 2150.4, Poisson's ratio, 
= 0.3.
Two-dimensional conical spud can, = 1.25, 
= 60° with spud can moduli and Poisson's ratio as in Case b, an initial embedment of 0.5 m (less than critical embedment).
Two-dimensional conical spud can, = 1.25, = 60° with spud can moduli and Poisson's ratio as in Case b, an initial embedment of 2.5 m (greater than critical embedment).
Three-dimensional cylindrical spud can, = 1.1, with general moduli, = 1000, = 0.0, = 2000, 
= 0.0, 
= –1200, 
= 3000, = 0.0, = 0.0, 
= 0.0, = 5000, 
= 0.0, 
= 0.0, 
= 1000, 
= 0.0, 
= 6000, 
= 0.0, 
= 1000, 
= 0.0, 
= 0.0, 
= 0.0, 
= 2000.
Three-dimensional cylindrical spud can, = 1.5, with spud can moduli, = 700, = 1095.2, = 4666.3, torsional elastic spring stiffness 
= 5000, Poisson's ratio, = 0.3.
Three-dimensional conical spud can, = 1.5, = 60°, with spud can moduli = 202.1, = 474.3, = 176.83, torsional elastic spring stiffness = 4500, Poisson's ratio, = 0.3, = 1.5, initial embedment = 0.321 (less than critical).
Boundary conditions and loading:
In the first step both the base node and the tip node are subjected to prescribed displacements and rotations. In the second step the previous boundary conditions are removed, and the base node is displaced by prescribing displacements and rotations. The tip node is free to move and should follow the base node for this case. In the third step the base node is fixed, and the tip node is subjected to concentrated forces and moments. The fourth step is a perturbation step about the previous step, with loads perturbed by 50% of those in the previous general step.