Elastic object

Elastic(...)

This method creates an Elastic object.

Path

mdb.models[name].materials[name].Elastic
session.odbs[name].materials[name].Elastic

Required arguments

table: A sequence of sequences of Floats specifying the items described below.

Optional arguments

type

A SymbolicConstant specifying the type of elasticity data provided. Possible values are:

ISOTROPIC
ORTHOTROPIC
ANISOTROPIC
ENGINEERING_CONSTANTS
LAMINA
TRACTION
COUPLED_TRACTION
SHORT_FIBER
SHEAR
BILAMINA

The default value is ISOTROPIC.

noCompression

A Boolean specifying whether compressive stress is allowed. The default value is OFF.

noTension

A Boolean specifying whether tensile stress is allowed. The default value is OFF.

temperatureDependency

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies

An Int specifying the number of field variable dependencies. The default value is 0.

moduli

A SymbolicConstant specifying the time-dependence of the elastic material constants. Possible values are INSTANTANEOUS and LONG_TERM. The default value is LONG_TERM.

Table data

If type=ISOTROPIC, the table data specify the following:

The Young's modulus, $E$ .
The Poisson's ratio, $ν$ .
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=SHEAR, the table data specify the following:

The shear modulus, $G$ .
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=ENGINEERING_CONSTANTS, the table data specify the following:

$E_{1}$ .
$E_{2}$ .
$E_{3}$ .
$ν_{12}$ .
$ν_{13}$ .
$ν_{23}$ .
$G_{12}$ .
$G_{13}$ .
$G_{23}$ .
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=LAMINA, the table data specify the following:

$E_{1}$ .
$E_{2}$ .
$ν_{12}$ .
$G_{12}$ .
$G_{13}$ . This shear modulus is needed to define transverse shear behavior in shells.
$G_{23}$ . This shear modulus is needed to define transverse shear behavior in shells.
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=ORTHOTROPIC, the table data specify the following:

$D_{1111}$ .
$D_{1122}$ .
$D_{2222}$ .
$D_{1133}$ .
$D_{2233}$ .
$D_{3333}$ .
$D_{1212}$ .
$D_{1313}$ .
$D_{2323}$ .
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=ANISOTROPIC, the table data specify the following:

$D_{1111}$ .
$D_{1122}$ .
$D_{2222}$ .
$D_{1133}$ .
$D_{2233}$ .
$D_{3333}$ .
$D_{1112}$ .
$D_{2212}$ .
$D_{3312}$ .
$D_{1212}$ .
$D_{1113}$ .
$D_{2213}$ .
$D_{3313}$ .
$D_{1213}$ .
$D_{1313}$ .
$D_{1123}$ .
$D_{2223}$ .
$D_{3323}$ .
$D_{1223}$ .
$D_{1323}$ .
$D_{2323}$ .
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=TRACTION, the table data specify the following:

$E$ for warping elements; $E_{n n}$ for cohesive elements.
$G_{1}$ for warping elements; $E_{s s}$ for cohesive elements.
$G_{2}$ for warping elements; $E_{t t}$ for cohesive elements.
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=BILAMINA, the table data specify the following:

$E_{1 +}$ .
$E_{2 +}$ .
$ν_{12 +}$ .
$G_{12}$ .
$E_{1 -}$ .
$E_{2 -}$ .
$ν_{12 -}$ .
Temperature, if the data depend on temperature.
Value of the first field variable, if the data depend on field variables.
Value of the second field variable.
Etc.

If type=SHORT_FIBER, there is no table data.

Return value

An Elastic object.

Exceptions

RangeError.

setValues(...)

This method modifies the Elastic object.

Required arguments

None.

Optional arguments

The optional arguments to setValues are the same as the arguments to the Elastic method.

Return value

None.

Exceptions

RangeError.

Members

The Elastic object has members with the same names and descriptions as the arguments to the Elastic method.

In addition, the Elastic object can have the following members:

failStress: A FailStress object.
failStrain: A FailStrain object.

Corresponding analysis keywords

ELASTIC

Elastic object

Access

Elastic(...)

Path

Required arguments

Optional arguments

Table data

Return value

Exceptions

setValues(...)

Required arguments

Optional arguments

Return value

Exceptions

Members

Corresponding analysis keywords