structure liner history command

Syntax

structure liner history keyword

Primary keywords:

coupling-displacement-normal    coupling-displacement-shear    coupling-stress-normal    coupling-stress-shear    coupling-yield-shear    coupling-yield-normal    force    force-x    force-y    moment

Sample liner responses.

If the optional name keyword is used, then the history can be assigned a name for later reference. If not used, then the history will be assigned a default name based on the internally assigned ID number. The element to be sampled must be identified by either component ID (component-id i) or by position (position v). If position v is used, then the element nearest to v is taken.

coupling-displacement-normal [liner2dhistoryblock]

displacement in the normal coupling spring at a node of the element. Normal displacement positive/negative implies separation/overlap only if the liner is on the outer surface and liner element normals point away from the body to which the liner is attached. This option uses the node and side keywords.

coupling-displacement-shear [liner2dhistoryblock]

displacement in the shear coupling spring at a node of the element Shear displacement is always positive. This option uses the node and side keywords.

coupling-stress-normal [liner2dhistoryblock]

stress in the normal coupling spring at a node of the element. Normal stress positive/negative implies tension/compression only if the liner is on the outer surface and liner element normals point away from the body to which the liner is attached. This option uses the node and side keywords.

coupling-stress-shear [liner2dhistoryblock]

stress in the shear coupling spring at a node of the element. Shear stress is always positive. This option uses the node and side keywords.

coupling-yield-shear [liner2dhistoryblock]

yield state in the shear coupling spring at a node of the element. Value {0, 1, 2} denotes never yielded, now yielding, or yielded in the past, respectively. This option uses the node and side keywords.

coupling-yield-normal [liner2dhistoryblock]

yield state in the normal coupling spring at a node of the element. Value {0, 1, 2} denotes never yielded, now yielding, or yielded in the past, respectively. This option uses the node and side keywords.

force [liner2dhistoryblock]

applied nodal force magnitude. Uses the node keyword.

force-x [liner2dhistoryblock]

applied nodal force (\(x\)-component, global system). Uses the node keyword.

force-y [liner2dhistoryblock]

applied nodal force (\(y\)-component, global system). Uses the node keyword.

moment [liner2dhistoryblock]

nodal moment magnitude. Uses the node keyword.

Keyword Block

The following keywords are available to control the location and other details of the history. Some keywords are only available if noted. coupling-displacement-normal, coupling-displacement-shear, coupling-stress-normal, coupling-stress-shear, coupling-yield-normal, coupling-yield-shear, force, force-x, force-y and moment.

component-id ind

the element with component ID ind is selected.

node ind

the node location to use when retrieving values from the element. Must be from 1 to 2. If this keyword is not specified, then the node location is set to 1. Only available if noted.

position v

the element with a centroid closest to v is selected

side ind

the side of an embedded liner. Must be 1 or 2, with default value of 1.