*USER ELEMENT
PROPERTIES
Set thisparam eterequal to the number of real (floating point) property values needed as data in user
subroutine UEL to define such an element. The default is PROPERTIES=0.
UNSYMM
Include this parameter if the element matrices are not symmetric. This parameter will cause
ABAQUS/Standard to use its unsymmetric equation solutio nc apability.
VARIABLES
Set this parameter equal to the number of solution-dependent state varia bles that must be stored
within the element. Its value m ust be greater than 0. The default is VARIABLES=1.
Data lines to define a general user-defined element:
First line:
1. Enterthe list of active degrees of freedom at the first node of the element (as determined by
the connectivity list). The rule in “Conventions,” Se ction 1.2.2 of the ABAQUS Analysis
User’s Manual, regarding which degrees of freedom can be used for displacement, rotation,
temperature, etc. must be conformed to.
Second line if the active degrees of freedom are differentat subsequent nodes:
1. Enterthe positi on in the connectivity list (node position on the element) where the new list of
active degrees of freedom first applies.
2. Enterthe new list of active degrees of freedom.
Repeat the second data line as often as necessary.
20.5–4
ABAQUS Version 6.1 Module: ID:
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