4.2.1.5. zeroLengthContact Element¶

element('zeroLengthContact2D', eleTag, *eleNodes, Kn, Kt, mu, '-normal', Nx, Ny)

This command is used to construct a zeroLengthContact2D element, which is Node-to-node frictional contact element used in two dimensional analysis and three dimensional analysis:

`eleTag` (int)	unique element object tag
`eleNodes` (list (int))	a list of a constrained and a retained nodes
`Kn` (float)	Penalty in normal direction
`Kt` (float)	Penalty in tangential direction
`mu` (float)	friction coefficient

element('zeroLengthContact3D', eleTag, *eleNodes, Kn, Kt, mu, c, dir)

This command is used to construct a zeroLengthContact3D element, which is Node-to-node frictional contact element used in two dimensional analysis and three dimensional analysis:

`eleTag` (int)	unique element object tag
`eleNodes` (list (int))	a list of a constrained and a retained nodes
`Kn` (float)	Penalty in normal direction
`Kt` (float)	Penalty in tangential direction
`mu` (float)	friction coefficient
`c` (float)	cohesion (not available in 2D)
`dir` (int)	Direction flag of the contact plane (3D), it can be: 1 Out normal of the master plane pointing to +X direction 2 Out normal of the master plane pointing to +Y direction 3 Out normal of the master plane pointing to +Z direction