GeometryShellSection object

The GeometryShellSection object defines the properties of a geometry shell section. The GeometryShellSection object has no explicit constructor and no methods. The GeometryShellSection object is an abstract base type.

The GeometryShellSection object is derived from the ShellSection object.

The following topics are discussed:

Access

import section
mdb.models[name].parts[name].compositeLayups[i].section
mdb.models[name].sections[name]
import odbSection
session.odbs[name].sections[name]

Section(...)

This method creates a GeometryShellSection object.

Path

mdb.models[name].parts[name].compositeLayups[name].Section

Required arguments

None.

Optional arguments

nodalThicknessField

A String specifying the name of the AnalyticalField or DiscreteField object used to define the thickness of the shell elements at each node. The nodalThicknessField argument applies only when thicknessType=NODAL_ANALYTICAL_FIELD or thicknessType=NODAL_DISCRETE_FIELD. The default value is an empty string.

thicknessField

A String specifying the name of the AnalyticalField or DiscreteField object used to define the thickness of the shell elements. The thicknessField argument applies only when thicknessType=ANALYTICAL_FIELD or thicknessType=DISCRETE_FIELD. The default value is an empty string.

thicknessType

A SymbolicConstant specifying the distribution used for defining the thickness of the elements. Possible values are UNIFORM, ANALYTICAL_FIELD, DISCRETE_FIELD, NODAL_ANALYTICAL_FIELD, and NODAL_DISCRETE_FIELD. The default value is UNIFORM.

preIntegrate

A Boolean specifying whether the shell section properties are specified by the user prior to the analysis (ON) or integrated during the analysis (OFF). The default value is OFF.

poissonDefinition

A SymbolicConstant specifying whether to use the default value for the Poisson's ratio. Possible values are:

  • DEFAULT, specifying that the default value for the Poisson's ratio is 0.5 in an Abaqus/Standard analysis and is obtained from the material definition in an Abaqus/Explicit analysis.

  • VALUE, specifying that the Poisson's ratio used in the analysis is the value provided in poisson.

The default value is DEFAULT.

poisson

A Float specifying the Poisson's ratio. Possible values are −1.0 ≤ poisson ≤ 0.5. This argument is valid only when poissonDefinition=VALUE. The default value is 0.5.

integrationRule

A SymbolicConstant specifying the shell section integration rule. Possible values are SIMPSON and GAUSS. The default value is SIMPSON.

temperature

A SymbolicConstant specifying the mode used for temperature and field variable input across the section thickness. Possible values are GRADIENT and POINTWISE. The default value is GRADIENT.

nTemp

None or an Int specifying the number of temperature points to be input. This argument is valid only when temperature=POINTWISE. The default value is None.

thicknessModulus

None or a Float specifying the effective thickness modulus. This argument is relevant only for continuum shells and must be used in conjunction with the argument poisson. The default value is None.

useDensity

A Boolean specifying whether or not to use the value of density. The default value is OFF.

density

A Float specifying the value of density to apply to this section. The default value is 0.0.

Return value

A GeometryShellSection object.

Exceptions

None.

Members

The GeometryShellSection object can have the following members:

name

A String specifying the repository key.

thicknessType

A SymbolicConstant specifying the distribution used for defining the thickness of the elements. Possible values are UNIFORM, ANALYTICAL_FIELD, DISCRETE_FIELD, NODAL_ANALYTICAL_FIELD, and NODAL_DISCRETE_FIELD. The default value is UNIFORM.

preIntegrate

A Boolean specifying whether the shell section properties are specified by the user prior to the analysis (ON) or integrated during the analysis (OFF). The default value is OFF.

poissonDefinition

A SymbolicConstant specifying whether to use the default value for the Poisson's ratio. Possible values are:

  • DEFAULT, specifying that the default value for the Poisson's ratio is 0.5 in an Abaqus/Standard analysis and is obtained from the material definition in an Abaqus/Explicit analysis.

  • VALUE, specifying that the Poisson's ratio used in the analysis is the value provided in poisson.

The default value is DEFAULT.

poisson

A Float specifying the Poisson's ratio. Possible values are −1.0 ≤ poisson ≤ 0.5. This argument is valid only when poissonDefinition=VALUE. The default value is 0.5.

integrationRule

A SymbolicConstant specifying the shell section integration rule. Possible values are SIMPSON and GAUSS. The default value is SIMPSON.

temperature

A SymbolicConstant specifying the mode used for temperature and field variable input across the section thickness. Possible values are GRADIENT and POINTWISE. The default value is GRADIENT.

idealization

A SymbolicConstant specifying the mechanical idealization used for the section calculations. This member is only applicable when preIntegrate is set to ON. Possible values are NO_IDEALIZATION, SMEAR_ALL_LAYERS, MEMBRANE, and BENDING. The default value is NO_IDEALIZATION.

nTemp

None or an Int specifying the number of temperature points to be input. This argument is valid only when temperature=POINTWISE. The default value is None.

thicknessModulus

None or a Float specifying the effective thickness modulus. This argument is relevant only for continuum shells and must be used in conjunction with the argument poisson. The default value is None.

useDensity

A Boolean specifying whether or not to use the value of density. The default value is OFF.

density

A Float specifying the value of density to apply to this section. The default value is 0.0.

thicknessField

A String specifying the name of the AnalyticalField or DiscreteField object used to define the thickness of the shell elements. The thicknessField argument applies only when thicknessType=ANALYTICAL_FIELD or thicknessType=DISCRETE_FIELD. The default value is an empty string.

rebarLayers

A RebarLayers object specifying reinforcement properties.

nodalThicknessField

A String specifying the name of the AnalyticalField or DiscreteField object used to define the thickness of the shell elements at each node. The nodalThicknessField argument applies only when thicknessType=NODAL_ANALYTICAL_FIELD or thicknessType=NODAL_DISCRETE_FIELD. The default value is an empty string.

transverseShear

A TransverseShearShell object specifying the transverse shear stiffness properties.