*M2
13.25 *M2: Define the second bending moment behavior of beams.
Thisopt ion is used to define the second bending moment behavior of beam s. It can be used onl y in conjunction
with the *BEAM GENERAL SECTION, SECTION=NONLINEAR GENERAL option and is needed only
for beams in space.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Part, Part instance
References:
•“Using a general beam section to define thesection behavior,” Section 23.3.7 of the ABAQUS Analysis
User’s Manual
•*BEAM GENERAL SECTION
Optional parameters (if neither ELASTIC norLINEAR is included, elastic-plastic response is
assumed):
DEPENDENCIES
Set this parameter equal to the number of field variable dependencies included in the
moment–curvature relationship, in addit ion to temperature. If this parameter is omitted, it is
assumed that the moment–curvature relationship is c onstant or depends only on temperature.
See “Specifying field variable dependence” in “Material data definition,” Section 16.1.2 of the
ABAQUS Analysis User’s Manual, for more information.
ELASTIC
Include this parameter if the bending moment–cu rvature relationship is nonlinear but elastic.
LINEAR
Include this parameter if the bendingm oment varies linearlywith curvature.
Data lines if the LINEAR parameter is included:
First line:
1. Bendingstiffness of the section about the second beam section local axis.
2. Temperature.
3. Firstfield variable.
4. Second field variable.
5. Etc., up to six field variables.
13.25–1
ABAQUS Version 6.1 Module: ID:
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