Abaqus Scripting Reference Manual  


60.8 FieldValue object

The FieldValue object represents the field data at a point. The FieldValue object has no constructor; it is created by the Odb object when data are added to the FieldOutput object using the addData method. For faster, bulk-data access, see “Using bulk data access to an output database,” Section 10.10.7 of the Abaqus Scripting User's Manual.

Access
odb.steps()[name].frames(i).fieldOutputs()[name].values(i)


60.8.1  Members

The FieldValue object has the following members:

Prototype
odb_Enum::odb_ResultPositionEnum position() const;
const odb_Instance& instance() const;
int elementLabel() const;
int nodeLabel() const;
int integrationPoint() const;
odb_Enum::odb_ElementFaceEnum face() const;
odb_SectionPoint sectionPoint() const;
odb_Enum::odb_PrecisionEnum precision() const;
odb_Enum::odb_DataTypeEnum type() const;
const float* data(int& numVal) const;
const float* conjugateData(int& numVal) const;
const double* dataDouble(int& numVal) const;
const double* conjugateDataDouble(int& numVal) const;
odb_SequenceSequenceFloat localCoordSystem() const;
odb_SequenceSequenceDouble localCoordSystemDouble() const;
float magnitude() const;
float mises() const;
float tresca() const;
float press() const;
float inv3() const;
float maxPrincipal() const;
float midPrincipal() const;
float minPrincipal() const;
float maxInPlanePrincipal() const;
float minInPlanePrincipal() const;
float outOfPlanePrincipal() const;
position

An odb_Enum::odb_ResultPositionEnum specifying the position of the output in the element. Possible values are:

  • odb_Enum::NODAL, specifying the values calculated at the nodes.

  • odb_Enum::INTEGRATION_POINT, specifying the values calculated at the integration points.

  • odb_Enum::ELEMENT_NODAL, specifying the values obtained by extrapolating results calculated at the integration points.

  • odb_Enum::ELEMENT_FACE, specifying the results obtained for surface variables such as cavity radiation that are defined for the surface facets of an element.

  • odb_Enum::CENTROID, specifying the value at the centroid obtained by extrapolating results calculated at the integration points.

precision

An odb_Enum::odb_PrecisionEnum specifying the precision of the output in the element. Possible values are:

  • odb_Enum::SINGLE_PRECISION, specifying that the output values are in single precision.

  • odb_Enum::DOUBLE_PRECISION, specifying that the output values are in double precision.

elementLabel

An Int specifying the element label of the element containing the location. elementLabel is available only if position=odb_Enum::INTEGRATION_POINT, odb_Enum::CENTROID, odb_Enum::ELEMENT_NODAL, or odb_Enum::ELEMENT_FACE.

nodeLabel

An Int specifying the node label of the node containing the location. nodelabel is available only if position=odb_Enum::ELEMENT_NODAL or odb_Enum::NODAL.

integrationPoint

An Int specifying the integration point in the element. integrationPoint is available only if position=odb_Enum::INTEGRATION_POINT.

face

An odb_Enum::odb_ElementFaceEnum specifying the face of the element. face is available only if position=odb_Enum::ELEMENT_FACE.

type

An odb_Enum::odb_DataTypeEnum specifying the output type. Possible values are odb_Enum::SCALAR, odb_Enum::VECTOR, odb_Enum::TENSOR_3D_FULL, odb_Enum::TENSOR_3D_PLANAR, odb_Enum::TENSOR_3D_SURFACE, odb_Enum::TENSOR_2D_PLANAR, and odb_Enum::TENSOR_2D_SURFACE.

magnitude

A Float specifying the length or magnitude of the vector. magnitude is valid only when type=odb_Enum::VECTOR.

mises

A Float specifying the calculated von Mises stress. The value is valid only when the validInvariants member includes odb_Enum::MISES; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

tresca

A Float specifying the calculated Tresca stress. The value is valid only when the validInvariants member includes odb_Enum::TRESCA; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

press

A Float specifying the calculated pressure stress. The value is valid only when the validInvariants member includes odb_Enum::PRESS; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

inv3

A Float specifying the calculated third stress invariant. The value is valid only when the validInvariants member includes odb_Enum::INV3; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

maxPrincipal

A Float specifying the calculated maximum principal stress. The value is valid only when the validInvariants member includes odb_Enum::MAX_PRINCIPAL; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

midPrincipal

A Float specifying the calculated intermediate principal stress. The value is valid only when the validInvariants member includes odb_Enum::MID_PRINCIPAL; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

minPrincipal

A Float specifying the minimum principal stress. The value is valid only when the validInvariants member includes odb_Enum::MIN_PRINCIPAL; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

maxInPlanePrincipal

A Float specifying the maximum principal in-plane stress. The value is valid only when the validInvariants member includes odb_Enum::MAX_INPLANE_PRINCIPAL; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

minInPlanePrincipal

A Float specifying the calculated minimum principal in-plane stress. The value is valid only when the validInvariants member includes odb_Enum::MIN_INPLANE_PRINCIPAL; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

outOfPlanePrincipal

A Float specifying the calculated principal out-of-plane stress. The value is valid only when the validInvariants member includes odb_Enum::OUTOFPLANE_PRINCIPAL; otherwise, the value is indeterminate. Conjugate data will be ignored in invariant calculation.

instance

An OdbInstance object specifying the part to which the labels belong.

sectionPoint

A SectionPoint object.

localCoordSystem

An odb_SequenceSequenceFloat specifying the 3 x 3 matrix of Floats specifying the direction cosines of the local coordinate system. Each sequence represents a row in the direction cosine matrix. localCoordSystem is available only for odb_Enum::TENSOR data written in a local coordinate system. If the underlying data are in double precision, an exception will be thrown.

localCoordSystemDouble

An odb_SequenceSequenceDouble specifying the 3 x 3 matrix of Doubles specifying the direction cosines of the local coordinate system. Each sequence represents a row in the direction cosine matrix. localCoordSystemDouble is available only for odb_Enum::TENSOR data written in a local coordinate system. If the underlying data are in single precision, an exception will be thrown.

data

A pointer to an array of Floats specifying data in the form described by type. If type=odb_Enum::TENSOR or odb_Enum::VECTOR, data is a sequence containing the components. If the underlying data are in double precision an exception will be thrown.

dataDouble

A pointer to an array of Doubles specifying data in the form described by type. If type=odb_Enum::TENSOR or odb_Enum::VECTOR, data is a sequence containing the components. If the underlying data are in single precision, an exception will be thrown.

conjugateData

A pointer to an array of Floats specifying data in the form described by type. If type=odb_Enum::TENSOR or odb_Enum::VECTOR, conjugateData is a sequence containing the components. If the underlying data are in double precision, an exception will be thrown.

conjugateDataDouble

A pointer to an array of Doubles specifying data in the form described by type. If type=odb_Enum::TENSOR or odb_Enum::VECTOR, conjugateData is a sequence containing the components. If the underlying data are in single precision, an exception will be thrown.