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100

101

13.25

M2: Deﬁne the second bending moment behavior of beams.

This option is used to deﬁne the second bending moment behavior of beams. It can be used only in conjunction

with the

BEAM GENERAL SECTION, SECTION=NONLINEAR GENERA L 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 the section behavior,” Section 23.3.7 of the ABAQUS Analysis

User’s Manual

• *

BEAM GENERAL SECTION

Optional parameters (if neither ELASTIC nor LINEAR is included, elastic-plastic response is

assumed):

DEPENDENCIES

Set this parameter equal to the num ber of ﬁeld variable dependencies included in the

moment–curvature relationship, in addition to temperature. If this parameter is omitted, it is

assumed that the moment–curvature re lationship is consta nt 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–c urvature relationship is nonlinear but elastic.

LINEAR

Include this parameter if the bending m om ent varies linearly with curvature.

Data lines if the LINEAR par ameter is included:

First line:

1. Bending stiffness of the section about the second beam section local axis.

2. Temperature.

3. First ﬁeld 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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Abaqus Volume II: I–Z Manual do Utilizador Página 181

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