Data lines to define material constants – ABAQUS Volume II: I–Z User Manual
Page 596
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*USER MATERIAL
Include this parameter if the material stiffness matrix,
, is not symmetric or when
a thermal constitutive model is used and
is not symmetric. This parameter causes
ABAQUS/Standard to use its unsymmetric equation solution procedures.
Data lines to define material constants:
First line:
1. Give the material constants, eight per line.
Repeat this data line as often as necessary to define all material constants.
20.6–2
ABAQUS Version 6.1
Module: ID:
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