MultiPhysicsVault/.raw/AbaqusAnalysisUserGuide1/AbaqusAnalysisUserGuide1_076.md

Identifier .dat .fil .odb Description Field History

and are obtained with the identifiers U, V, and A; “Total” values include the motion of the primary base. For steady-state dynamic output printed to the data file, there are two lines printed for each request; the first line contains the real part of the variable, and the second line (indicated by the SSD footnote) contains the imaginary part.

TU	•	•	•	•	All components of the total displacements at the node and of the total rotations at nodes with rotational degrees of freedom.
TUn	•			•	Component n of the total displacement (n = 1, 2, 3).
TURn	•			•	Component n of the total rotation (n = 1, 2, 3).
TV	•	•	•	•	All components of the total velocity at the node, including rotational velocities at nodes with rotational degrees of freedom.
TVn	•			•	Component n of the total velocity (n = 1, 2, 3).
TVRn	•			•	Component n of the total rate of rotation (n = 1, 2, 3).
TA	•	•	•	•	All components of the total acceleration at the node, including rotational accelerations at nodes with rotational degrees of freedom.
TAn	•			•	Component n of the total acceleration (n = 1, 2, 3).
TARn	•			•	Component n of the total rotational acceleration (n = 1, 2, 3).

Mode-based steady-state dynamic analysis

The following variables are available only for steady-state (frequency domain) dynamic analysis based on modal superposition. “Total” values include the base motion.

PTU	•	•	Magnitude and phase angle of the total displacement components at the node and magnitude and phase angle of the total rotations at nodes with rotational degrees of freedom.
PTUn	•		Magnitude and phase angle of component n of the total displacement (n = 1, 2, 3).
PTURn	•		Magnitude and phase angle of component n of the total rotation (n = 1, 2, 3).

Pore pressure analysis

The following variables correspond to fluid volume flux in pore pressure analyses.

Identifier	.dat	.fil	.odb		Description
			Field	History
RVF	•	•	•	•	Reaction fluid volume flux due to prescribed pressure. This flux is the rate at which fluid volume is entering or leaving the model through the node to maintain the prescribed pressure boundary condition. A positive value of RVF indicates fluid is entering the model.
RVT	•	•	•	•	Reaction total fluid volume (computed only in a transient coupled pore fluid diffusion/stress analysis). This value is the time integrated value of RVF.

Random response analysis

The following variables are available only for random response dynamic analysis. “Relative” values are measured relative to the base motion; “Total” values include the base motion.

RU	•	•	•	•	Root mean square values of all components of the relative displacement at the node and of the components of rotation at nodes with rotational degrees of freedom.
RU $n$	•			•	Root mean square value of component $n$ of the relative displacement ( $n = 1,2,3$ ).
RUR $n$	•			•	Root mean square value of component $n$ of the relative rotation ( $n = 1,2,3$ ).
RTU	•	•	•	•	Root mean square values of all components of the total displacement at the node and of the components of total rotation at nodes with rotational degrees of freedom.
RTUn	•			•	Root mean square value of component $n$ of the total displacement ( $n = 1,2,3$ ).
RTUR $n$	•			•	Root mean square value of component $n$ of the total rotation ( $n = 1,2,3$ ).
RV	•	•	•	•	Root mean square values of all components of the relative velocity at the node and of the components of the rate of rotation at nodes with rotational degrees of freedom.
RV $n$	•			•	Root mean square value of component $n$ of the relative velocity ( $n = 1,2,3$ ).
RVR $n$	•			•	Root mean square value of component $n$ of the relative rate of rotation ( $n = 1,2,3$ ).

Identifier	.dat	.fil	.odb		Description
			Field	History
RTV	•	•	•	•	Root mean square values of all components of the total velocity at the node and of the components of total rotation at nodes with rotational degrees of freedom.
RTVn	•			•	Root mean square value of component n of the total velocity (n = 1, 2, 3).
RTVRn	•			•	Root mean square value of component n of the total rate of rotation (n = 1, 2, 3).
RA	•	•	•	•	Root mean square values of all components of the relative acceleration at the node and of the components of rotational acceleration at nodes with rotational degrees of freedom.
RAn	•			•	Root mean square value of component n of the relative acceleration (n = 1, 2, 3).
RARn	•			•	Root mean square value of component n of the relative rotational acceleration (n = 1, 2, 3).
RTA	•	•	•	•	Root mean square values of all components of the total acceleration at the node and of the components of rotational acceleration at nodes with rotational degrees of freedom.
RTAn	•			•	Root mean square value of component n of the total value of acceleration (n = 1, 2, 3).
RTARn	•			•	Root mean square value of component n of the total rotational acceleration (n = 1, 2, 3).
RRF	•	•	•	•	Root mean square values of all components of the reaction forces and of reaction moments at nodes with rotational degrees of freedom.
RRFn	•			•	Root mean square value of component n of the reaction force (n = 1, 2, 3).
RRMn	•			•	Root mean square value of component n of the reaction moment (n = 1, 2, 3).

Modal variables

You can request modal variable output to the data, results, or output database file (see “Modal output from Abaqus/Standard” in “Output to the data and results files,” Section 4.1.2, and “Modal output from Abaqus/Standard” in “Output to the output database,” Section 4.1.3). In steady-state dynamics GU, etc. provide the amplitude of the mode.

Identifier	.dat	.fil	.odb		Description
			Field	History
GU	●	●		●	Generalized displacements for all modes.
GUn	●			●	Generalized displacement for mode n.
GV	●	●		●	Generalized velocities for all modes.
GVn	●			●	Generalized velocity for mode n.
GA	●	●		●	Generalized acceleration for all modes.
GAn	●			●	Generalized acceleration for mode n.
GPU	●	●		●	Phase angle of generalized displacements for all modes.
GPUn	●			●	Phase angle of generalized displacement for mode n.
GPV	●	●		●	Phase angle of generalized velocities for all modes.
GPVn	●			●	Phase angle of generalized velocity for mode n.
GPA	●	●		●	Phase angle of generalized acceleration for all modes.
GPAn	●			●	Phase angle of generalized acceleration for mode n.
SNE	●	●		●	Elastic strain energy for the entire model per each mode (not available for random response analysis).
SNEn	●			●	Elastic strain energy for the entire model for mode n (not available for random response analysis).
KE	●	●		●	Kinetic energy for the entire model per each mode (not available for random response analysis).
KEN	●			●	Kinetic energy for the entire model for mode n (not available for random response analysis).
T	●	●		●	External work for the entire model per each mode (not available for random response analysis).
Tn	●			●	External work for the entire model for mode n (not available for random response analysis).
BM	●	●		●	Base motion (not available for random response or response spectrum analyses).

Surface variables

You can request surface variable output to the data, results, or output database file (see “Surface output from Abaqus/Standard” in “Output to the data and results files,” Section 4.1.2, and “Surface output in Abaqus/Standard and Abaqus/Explicit” in “Output to the output database,” Section 4.1.3). Additional information on these variables is provided in “Defining contact pairs in Abaqus/Standard,” Section 36.3.1, and Chapter 37, “Contact Property Models.” The letter “M” at the end of an output variable identifier designates the magnitude of the variable. Those variables that are output on both

master and slave surfaces in a single master-slave contact pair are designated below. For exceptions to output on the master surface, see “Defining contact pairs in Abaqus/Standard,” Section 36.3.1.

Identifier .dat .fil .odb Description Field History
Mechanical analysis–nodal quantities

CSTRESS	•	•	•	•	Contact pressure (CPRESS) and frictional shear stresses (CSHEAR). Output is also available on the master surface to the .odb file in a single master-slave setting.
CSTRESSETOS			•		Contact pressure (CPRESSETOS) and frictional shear stresses (CSHEARETOS) due to edge-to-surface contact constraints. Output is also available on the master surface to the .odb file in a single master-slave setting.
CSTRESSERI			•		Error indicators for the contact pressure (CPRESSERI) and frictional shear stresses (CSHEARERI). Output is also available on the master surface to the .odb file in a single master-slave setting.
CDSTRESS	•	•	•	•	Viscous pressure (CDPRESS) and viscous shear stresses (CDSHEAR). Output is also available on the master surface to the .odb file in a single master-slave setting.
CDISP	•	•	•	•	Contact opening (COPEN) and relative tangential motions (CSLIP).
CDISPETOS			•		Contact opening (COPENETOS) and relative tangential motions (CSLIPETOS) for edge-to-surface contact constraints.
CFORCE			•		Contact normal force (CNORMF) and frictional shear force (CSHEARF). Output is also available on the master surface to the .odb file in a single master-slave setting.
CLINELOAD			•		Contact load due to line contact from edge-to-surface and radial edge-to-edge constraints in units of force per length. The normal (CLINELOADN) and frictional shear (CLINELOADT) components are available only for general contact to the .odb file.
CNAREA			•		Contact nodal area. Output is also available on the master surface to the .odb file in a single master-slave setting.

Identifier	.dat	.fil	.odb		Description
			Field	History
CPOINTLOAD			•		Contact load in units of force due to point contact from edge-to-edge constraints using the cross formulation. The normal (CPOINTLOADN) and frictional shear (CPOINTLOADT) components are available only for general contact to the .odb file.
CRKDISP			•	•	Crack opening and relative tangential motions on cracked surfaces in enriched elements.
CRKSTRESS			•	•	Remaining residual pressure and tangential shear stresses on cracked surfaces in enriched elements.
CSTATUS			•		Contact status. Output is also available on the master surface to the .odb file in a single master-slave setting.
CSMAXSCRT			•	•	Maximum stress-based damage initiation criterion for cohesive surfaces.
CSQUADSCRT			•	•	Quadratic stress-based damage initiation criterion for cohesive surfaces.
CSMAXUCRT			•	•	Maximum separation-based damage initiation criterion for cohesive surfaces.
CSQUADUCRT			•	•	Quadratic separation-based damage initiation criterion for cohesive surfaces.
CSDMG			•	•	Damage variable for cohesive surfaces or for cracked surfaces in enriched elements.
CTANDIR			•		Instantaneous contact tangent directions (CTANDIR1 and CTANDIR2).
PPRESS	•	•	•	•	Fluid pressure for pressure penetration analysis.
SDV	•	•	•	•	Solution-dependent state variables.

Mechanical analysis–whole surface quantities

CFN	•	•	•	Total force due to contact pressure (CFN $n$ , $n = 1, 2, 3$ ).
CFNM			•	Magnitude of total force due to contact pressure.
CFS	•	•	•	Total force due to frictional stress (CFS $n$ , $n = 1, 2, 3$ ).
CFSM			•	Magnitude of total force due to frictional stress.
CFT	•	•	•	Total force due to contact pressure and frictional stress (CFT $n$ , $n = 1, 2, 3$ ).
CFTM			•	Magnitude of total force due to contact pressure and frictional stress.

Identifier	.dat	.fil	.odb		Description
			Field	History
CMN	•	•		•	Total moment about the origin due to contact pressure (CMNn, n = 1, 2, 3).
CMNM				•	Magnitude of total moment about origin due to contact pressure.
CMS	•	•		•	Total moment about the origin due to frictional stress (CMSn, n = 1, 2, 3).
CMSM				•	Magnitude of total moment about the origin due to frictional stress.
CMT	•	•		•	Total moment about the origin due to contact pressure and frictional stress (CMTn, n = 1, 2, 3).
CMTM				•	Magnitude of total moment about the origin due to contact pressure and frictional stress.
CAREA	•	•		•	Total area in contact.
CTRQ	•	•		•	Maximum torque that can be transmitted about the z-axis by a contact surface in an axisymmetric analysis with a friction coefficient of unity.
XN	•	•		•	Center of the total force due to contact pressure (XNn, n = 1, 2, 3).
XS	•	•		•	Center of the total force due to frictional stress (XSn, n = 1, 2, 3).
XT	•	•		•	Center of the total force due to contact pressure and frictional stress (XTn, n = 1, 2, 3).

Heat transfer analysis

HFL	●	●	●	●	Heat flux per unit area leaving the slave surface.
HFLA	●	●	●	●	HFL multiplied by the nodal area.
HTL	●	●	●	●	Time integrated HFL.
HTLA	●	●	●	●	Time integrated HFLA.

Coupled thermal-electrical analysis

ECD	●	●	●	●	Electrical current per unit area.
ECDA	●	●	●	●	ECD multiplied by the nodal area.
ECDT	●	●	●	●	Time integrated ECD.
ECDTA	●	●	●	●	Time integrated ECDA.
HFL	●	●	●	●	Heat flux per unit area leaving the slave surface.
HFLA	●	●	●	●	HFL multiplied by the nodal area.

Identifier	.dat	.fil	.odb		Description
			Field	History
HTL	●	●	●	●	Time integrated HFL.
HTLA	●	●	●	●	Time integrated HFLA.
SJD	●	●	●	●	Heat flux per unit area due to electrical current.
SJDA	●	●	●	●	SJD multiplied by the nodal area.
SJDT	●	●	●	●	Time integrated SJD.
SJDTA	●	●	●	●	Time integrated SJDA.
WEIGHT	●	●	●	●	Weighting factor for heat distribution between the

Fully coupled temperature-displacement analysis

HFL	●	●	●	●	Heat flux per unit area leaving the slave surface.
HFLA	●	●	●	●	HFL multiplied by the nodal area.
HTL	●	●	●	●	Time integrated HFL.
HTLA	●	●	●	●	Time integrated HFLA.
SFDR	●	●	●	●	Heat flux per unit area due to frictional dissipation.
SFDRA	●	●	●	●	SFDR multiplied by the nodal area.
SFDRT	●	●	●	●	Time integrated SFDR.
SFDRTA	●	●	●	●	Time integrated SFDRA.
WEIGHT	●	●	●	●	Weighting factor for heat distribution between the interface surfaces.

Fully coupled thermal-electrical-structural analysis

ECD	●	●	●	●	Electrical current per unit area.
ECDA	●	●	●	●	ECD multiplied by the nodal area.
ECDT	●	●	●	●	Time integrated ECD.
ECDTA	●	●	●	●	Time integrated ECDA.
HFL	●	●	●	●	Heat flux per unit area leaving the slave surface.
HFLA	●	●	●	●	HFL multiplied by the nodal area.
HTL	●	●	●	●	Time integrated HFL.
HTLA	●	●	●	●	Time integrated HFLA.
SFDR	●	●	●	●	Heat flux per unit area due to frictional dissipation.
SFDRA	●	●	●	●	SFDR multiplied by the nodal area.
SFDRT	●	●	●	●	Time integrated SFDR.
SFDRTA	●	●	●	●	Time integrated SFDRA.
SJD	●	●	●	●	Heat flux per unit area due to electrical current.

Identifier	.dat	.fil	.odb		Description
			Field	History
SJDA	●	●	●	●	SJD multiplied by the nodal area.
SJDT	●	●	●	●	Time integrated SJD.
SJDTA	●	●	●	●	Time integrated SJDA.
WEIGHT	●	●	●	●	Weighting factor for heat distribution between the interface surfaces.

Coupled pore fluid-mechanical analysis–nodal quantities

PFL	●	●	●	●	Pore fluid volume flux per unit area leaving the slave surface.
PFLA	●	●	●	●	PFL multiplied by the nodal area.
PTL	●	●	●	●	Time integrated PFL.
PTLA	●	●	●	●	Time integrated PFLA.

Coupled pore fluid-mechanical analysis–nodal quantities in enriched elements

GFVR	•	•	Fluid volume rate within the cracked surfaces in the enriched element.
PORPRES	•	•	Pore pressure within the cracked surfaces in the enriched element.
PORPRESURF	•	•	Pore pressure on the cracked surfaces in the enriched element.
LEAKVR	•	•	Leak-off flow rate on the cracked surfaces in the enriched element.
ALEAKVR	•	•	Accumulated leak-off flow volume on the cracked surfaces in the enriched element.

Coupled pore fluid-mechanical analysis–whole surface quantities

TPFL	●	●	Total pore fluid volume flux leaving the slave surface.
TPTL	●	●	Time integrated TPFL.

Bond failure quantities

DBT	●	●	●	●	Time when bond failure occurs.
DBS	●	●	●	●	All components of remaining stress in the failed bond.
DBSF	●	●	●	●	Fraction of stress that remains at bond failure.
BDSTAT	●	●	●	●	Bond state (varies from 1.0 to 0.0).
CSDMG	●	●	●	●	Damage variable.

Identifier	.dat	.fil	.odb		Description
			Field	History
OPENBC	•	•	•	•	Relative displacement behind crack when fracture criterion is met.
CRSTS	•	•	•	•	All components of critical stress at failure.
ENRRT	•	•	•	•	All components of strain energy release rate.
EFENRRTR	•	•	•	•	Effective energy release rate ratio.

Cavity radiation variables

The following variables are associated with facets (sides of elements) composing cavities in radiation heat transfer and include contributions due to exchanges with the ambient. You can request cavity radiation variable output to the data, results, or output database file (see “Requesting surface variable output” in “Cavity radiation,” Section 41.1.1, and “Cavity radiation output in Abaqus/Standard” in “Output to the output database,” Section 4.1.3).

Identifier	.dat	.fil	.odb		Description
			Field	History
RADFL	●	●	●	●	Radiation flux per unit area.
RADFLA	●	●	●	●	Radiation flux over the facet.
RADTL	●	●	●	●	Time integrated radiation per unit area.
RADTLA	●	●	●	●	Time integrated radiation over the facet.
VFTOT	●	●	●	●	Total view factor for the facet (sum of view factor values in the row of view factor matrix corresponding to the facet).
FTEMP	●	●	●	●	Facet temperature.

Section variables

You can request section variables as section output to the data or results file (see “Section output from Abaqus/Standard” in “Output to the data and results files,” Section 4.1.2) or as integrated output to the output database (see “Integrated output” in “Output to the output database,” Section 4.1.3). By default, all components of forces and moments are given with respect to the global system. If a local coordinate system is defined for the output request, all components are given with respect to the local system. The output quantity is computed by integration over a surface that is specified either directly in the output request or by associating an integrated output section definition (see “Integrated output section definition,” Section 2.5.1) with the integrated output request.

Different output variables are available depending on the type of analysis. For coupled analyses the appropriate combination of variables can be requested. For example, in a coupled thermal-electrical analysis both SOH and SOE are valid output requests. Section output variables are not available for linear dynamic procedures.