3D Connexion Version 6.6

*SOLID SECTION

Required parameter for anisotropicmaterials optional parameter for isotropic materials:

ORIENTATION

Set this parameter equal to the name given for the *ORIENTATION option (“Orientations,”

Section 2.2.5 of the ABAQUS Analysis User’s Manual) to be used to deﬁne a local coordinate

system for material calculations in the elements in this set. This parameter is required when the

material is anisotropic.

For a composite solid this orientation, together with the orientation angle spec iﬁed on the layer

data lines, can also be used to deﬁne the material orientations in the individual layers . Alternatively,

amaterial orientation can be speciﬁed by referencing an orientation deﬁnition on each layer data line.

In this case the reference given on the ORIENTATIONp arameter is ignored. Any layer deﬁnition

line that doesnot have an orientation reference or an angle speciﬁed will use the section orientation

deﬁned on the keyword line.

Optional parameters:

CONTROLS

In an ABAQUS/Explicit analysis, set this parameter equal to the name of a section controls

deﬁnition (see “Section controls,” Section21.1.4 of the ABAQUS Analysis User ’sManual) to be

used to specify a nondefault hourglass control formulation option o r scale factor. The *SECTION

CONTROLS option can be used to select the hourglass control and order of accuracy of the

formulation for two- and three-dimensional solidelem ents and to selectthe kinematic form ulation

for 8-node brick elements.

In an ABAQUS/Standard analysis, set this parameter equal to thenam e of a sectioncontrols

deﬁnition (see “Section controls,” Section 21.1.4 of the ABAQUS Analysis User’s Manual) to

be used to specify the enhanced hourglass control formulation or to be used in a subsequent

ABAQUS/Explicit import analysis.

STACK DIRECTION

This parameter applies only to ABAQUS/Standard analys es.

This parameter can be used only with composite elements. It deﬁnes the stacking direction

with respect to a pair ofelem ent faces. Set this parameter equal to 1, 2, or 3. The default is STACK

DIRECTION=3.

ORDER

This parameter can be used only with acoustic inﬁnite elements in ABAQUS/Explicit. It deﬁnes

the number of ninth-order polynomials that will be used to resolve the variationof the acoustic ﬁeld

in the inﬁnite direction. Set this parameter equal to Nto indicate that the ﬁrst Nmembers of the set

of ninth-order polynomials are to be used. The default is ORDER=10, which is the value always

used in ABAQUS/Standard.

18.22–2

ABAQUS Version 6.1 Module: ID:

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