Whole and Partial Model Variables

The following variable is available only for adaptive domains (see Defining ALE Adaptive Mesh Domains in Abaqus/Standard).

VOLC

Field: no  History: yes  .fil: yes  .dat: yes  

Change in area or change in volume of an element set solely due to adaptive meshing.

You can request equivalent rigid body motion whole element set variable output to the data, results, or output database file (see Element Output and Writing Element Output to the Output Database). The variables listed are available only for implicit dynamic analyses using direct integration except where indicated.

XC

Field: no  History: yes  .fil: yes  .dat: yes  

Current coordinates of the center of mass for the entire set or the entire model. Not available for eigenfrequency extraction, eigenvalue buckling prediction, complex eigenfrequency extraction, or linear dynamics procedures. Available also for static analyses but only from the output database.

XCn

Field: no  History: yes  .fil: no  .dat: yes  

Coordinate n of the center of mass for the entire set or the entire model ($n=1,2,3$).

UC

Field: no  History: yes  .fil: yes  .dat: yes  

Current displacement of the center of mass for the entire set or the entire model. Available also for static analyses but only from the output database.

UCn

Field: no  History: yes  .fil: no  .dat: yes  

Displacement component n of the center of mass for the entire set or the entire model ($n=1,2,3$).

URCn

Field: no  History: yes  .fil: no  .dat: yes  

Rotation component n of the center of mass for the entire set or the entire model ($n=1,2,3$).

VC

Field: no  History: yes  .fil: yes  .dat: yes  

Equivalent rigid body velocity components summed over the entire set or the entire model.

VCn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the equivalent rigid body velocity summed over the entire set or the entire model ($n=1,2,3$).

VRCn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the equivalent rigid body angular velocity summed over the entire set or the entire model ($n=1,2,3$).

HC

Field: no  History: yes  .fil: yes  .dat: yes  

Current angular momentum about the center of mass for the entire set or the entire model.

HCn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the angular momentum about the center of mass for the entire set or the entire model ($n=1,2,3$).

HO

Field: no  History: yes  .fil: yes  .dat: yes  

Current angular momentum about the origin for the entire set or the entire model.

HOn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the angular momentum about the origin for the entire set or the entire model ($n=1,2,3$).

RI

Field: no  History: yes  .fil: yes  .dat: yes  

Current rotary inertia about the origin of the entire set or the entire model. Not available for eigenfrequency extraction, eigenvalue buckling prediction, complex eigenfrequency extraction, or linear dynamics procedures. Available also for static analyses but only from the output database.

RIij

Field: no  History: yes  .fil: no  .dat: yes  

$ij$-component of the rotary inertia about the origin of the entire set or the entire model ($i\le j\le 3$).

MASS

Field: no  History: yes  .fil: yes  .dat: yes  

Current mass of the entire set or the entire model. Available also for static analyses but only from the output database.

VOL

Field: no  History: yes  .fil: yes  .dat: yes  

Current volume of the entire set or the entire model. Available also for static analyses but only from the output database. (Available only for continuum and structural elements that do not use general beam or shell section definitions.)

You can request inertia relief whole model variable output to the data or output database file (see Element Output and Writing Element Output to the Output Database). Since these variables have unique values for the entire model, the variable output is independent of the specified region. The variables listed are available only for those analyses that include inertia relief loading (see Inertia Relief).

IRX

Field: no  History: yes  .fil: no  .dat: yes  

Current coordinates of the reference point.

IRXn

Field: no  History: yes  .fil: no  .dat: yes  

Coordinate n of the reference point ($n=1,2,3$).

IRA

Field: no  History: yes  .fil: no  .dat: yes  

Equivalent rigid body acceleration components.

IRAn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the equivalent rigid body acceleration ($n=1,2,3$).

IRARn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the equivalent rigid body angular acceleration with respect to the reference point ($n=1,2,3$).

IRF

Field: no  History: yes  .fil: no  .dat: yes  

Inertia relief load corresponding to the equivalent rigid body acceleration.

IRFn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the inertia relief load corresponding to the equivalent rigid body acceleration ($n=1,2,3$).

IRMn

Field: no  History: yes  .fil: no  .dat: yes  

Component n of the inertia relief moment corresponding to the equivalent rigid body angular acceleration with respect to the reference point ($n=1,2,3$).

IRRI

Field: no  History: yes  .fil: no  .dat: yes  

Rotary inertia about the reference point.

IRRIij

Field: no  History: yes  .fil: no  .dat: yes  

$ij$-component of the rotary inertia about the reference point ($i\le j\le 3$).

IRMASS

Field: no  History: yes  .fil: no  .dat: yes  

Whole model mass.

You can request variable output from a mass diffusion analysis (Mass Diffusion Analysis) to the data, results, or output database file (see Element Output and Writing Element Output to the Output Database). If you specify an output region, the variable is calculated over the user-specified region. If you do not specify an output region, the variable is calculated as the total over the entire model.

SOL

Field: no  History: yes  .fil: yes  .dat: yes  

Amount of solute in an element set, calculated as the sum of ESOL (amount of solute in each element) over all the elements in the set.

CRPTIME

Field: no  History: yes  .fil: no  .dat: no  

Creep time, which is equal to the total time in procedures with time-dependent material behavior (see Rate-Dependent Plasticity: Creep and Swelling).

The following variables are output automatically during a frequency extraction analysis (Natural Frequency Extraction).

EIGVAL

Field: no  History: automatic  .fil: no  .dat: automatic  

Eigenvalues.

EIGFREQ

Field: no  History: automatic  .fil: no  .dat: automatic  

Eigenfrequencies.

GM

Field: no  History: automatic  .fil: no  .dat: automatic  

Generalized masses.

CD

Field: no  History: automatic  .fil: no  .dat: automatic  

Composite damping factors.

PFn

Field: no  History: automatic  .fil: no  .dat: automatic  

Modal participation factors 1–7 ($n=1,2,3$ corresponding to displacements, $n=4,5,6$ for the rotations, and $n=7$ for acoustic pressure).

EMn

Field: no  History: automatic  .fil: no  .dat: automatic  

Modal effective masses 1–7 ($n=1,2,3$ corresponding to displacements, $n=4,5,6$ for the rotations, and $n=7$ for acoustic pressure).

The following variables are output automatically during a complex frequency extraction analysis (Complex Eigenvalue Extraction).

EIGREAL

Field: no  History: automatic  .fil: no  .dat: automatic  

Real parts of the eigenvalues.

EIGIMAG

Field: no  History: automatic  .fil: no  .dat: automatic  

Imaginary parts of the eigenvalues.

EIGFREQ

Field: no  History: automatic  .fil: no  .dat: automatic  

Eigenfrequencies.

DAMPRATIO

Field: no  History: automatic  .fil: no  .dat: automatic  

Damping ratios.

If the following whole model variables are relevant for a particular analysis, you can request them as output to the data, results, or output database file (see Total Energy Output and Total Energy Output). If you do not specify an output region, whole model variables are calculated. When you specify an output region, the relevant energy totals are calculated over the user-specified region.

These variables are not available for eigenvalue buckling prediction, eigenfrequency extraction, or complex frequency extraction analysis. You cannot specify an output region for modal dynamic, random response, response spectrum, or steady-state dynamic analysis.

See Energy balance and Energy computations in a contact analysis for details of the energy definitions. In steady-state dynamics all energy quantities are net per-cycle values, unless otherwise noted.

ALLAE

Field: no  History: yes  .fil: automatic  .dat: automatic  

“Artificial” strain energy associated with constraints used to remove singular modes (such as hourglass control), and with constraints used to make the drill rotation follow the in-plane rotation of the shell elements.

ALLCCDW

Field: no  History: yes  .fil: no  .dat: automatic  

Contact constraint discontinuity work.

ALLCCEN

Field: no  History: yes  .fil: no  .dat: automatic  

Contact constraint elastic energy in normal direction due to penalty constraint enforcement.

ALLCCET

Field: no  History: yes  .fil: no  .dat: automatic  

Contact constraint elastic energy in tangential direction due to friction penalty constraint enforcement.

ALLCCE

Field: no  History: yes  .fil: no  .dat: automatic  

The sum of ALLCCEN and ALLCCET.

ALLCCSDN

Field: no  History: yes  .fil: no  .dat: automatic  

Contact constraint stabilization dissipation in normal direction.

ALLCCSDT

Field: no  History: yes  .fil: no  .dat: automatic  

Contact constraint stabilization dissipation in tangential direction.

ALLCCSD

Field: no  History: yes  .fil: no  .dat: automatic  

The sum of ALLCCSDN and ALLCCSDT.

ALLCD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Energy dissipated by creep, swelling, viscoelasticity, and energy associated with viscous regularization for cohesive elements and cohesive contact.

ALLEE

Field: no  History: yes  .fil: automatic  .dat: automatic  

Electrostatic energy.

ALLFD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Total energy dissipated through frictional effects. (Available only for the whole model.)

ALLIE

Field: no  History: yes  .fil: automatic  .dat: automatic  

Total strain energy. (ALLIE = ALLSE + ALLPD + ALLCD + ALLAE + ALLQB + ALLEE + ALLDMD.)

ALLJD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Electrical energy dissipated due to flow of electrical current.

ALLKE

Field: no  History: yes  .fil: automatic  .dat: automatic  

Kinetic energy. In steady-state dynamic and frequency extraction analyses, this is the cyclic mean value. In frequency extraction analyses, the value of kinetic energy is normalized. Normalization is performed for each eigenmode separately, such that the kinetic and strain energies for the whole model add up to one.

ALLKEA

Field: no  History: yes  .fil: no  .dat: no  

Kinetic energy amplitude. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLKEP

Field: no  History: yes  .fil: no  .dat: no  

Kinetic energy peak value. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLKL

Field: no  History: yes  .fil: automatic  .dat: automatic  

Loss of kinetic energy at impact. (Available only for the whole model.)

ALLPD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Energy dissipated by rate-independent and rate-dependent plastic deformation. For superelastic materials, this variable also includes recoverable phase-transformation energy.

ALLQB

Field: no  History: yes  .fil: automatic  .dat: automatic  

Energy dissipated through quiet boundaries (infinite elements). (Available only for the whole model.)

ALLSD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Energy dissipated by automatic stabilization. This includes both volumetric static stabilization and automatic approach of contact pairs (the latter part included only for the whole model).

ALLSE

Field: no  History: yes  .fil: automatic  .dat: automatic  

Recoverable strain energy. In steady-state dynamic and frequency extraction analyses, this is the cyclic mean value. In frequency extraction analyses, the value of strain energy is normalized. Normalization is performed for each eigenmode separately, such that the kinetic and strain energies for the whole model add up to one.

ALLSEA

Field: no  History: yes  .fil: no  .dat: no  

Recoverable strain energy amplitude. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLSEP

Field: no  History: yes  .fil: no  .dat: no  

Recoverable strain energy peak value. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLVD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Energy dissipated by viscous effects including viscous regularization (except for cohesive elements and cohesive contact), not inclusive of energy dissipated by automatic stabilization and viscoelasticity. If this variable is requested for the whole model in mode-based steady-state dynamic analyses, it includes the energy loss due to the material, global, and modal damping. If this variable is requested for a part of the model in mode-based steady-state dynamic analyses, the energy loss due to the modal damping is not included. In direct-solution steady-state dynamic analyses this variable includes the energy loss due to the material and global damping.

ALLVDE

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated by viscous effects due to the material damping. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLVDG

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated by viscous effects due to the global damping. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLVDM

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated by viscous effects due to the modal damping. This variable is available only for the whole model in the mode-based steady-state dynamic analyses.

ALLHD

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated due to the structural damping. If this variable is requested for the whole model in mode-based steady-state dynamic analyses, it includes energy loss due to the material, global, and modal damping. If this variable is requested for a part of the model in mode-based steady-state dynamic analyses, energy loss due to the modal damping is not included. In direct-solution steady-state dynamic analyses this variable includes the energy loss due to the material and global damping.

ALLHDE

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated due to the material structural damping. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLHDG

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated due to the global structural damping. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLHDM

Field: no  History: yes  .fil: no  .dat: automatic  

Energy dissipated due to the modal structural damping. This variable is available only for the whole model in mode-based steady-state dynamic analyses.

ALLDMD

Field: no  History: yes  .fil: automatic  .dat: automatic  

Energy dissipated by damage.

ALLWK

Field: no  History: yes  .fil: automatic  .dat: automatic  

External work. (Available only for the whole model.)

ETOTAL

Field: no  History: yes  .fil: automatic  .dat: automatic  

Total energy balance (available only for the whole model). (ETOTAL = ALLKE + ALLIE + ALLVD + ALLSD + ALLKL + ALLFD + ALLJD + ALLCCE − ALLWK − ALLCCDW.)

EFLOW

Field: no  History: yes  .fil: no  .dat: automatic  

Energy flow from a given portion of the model through the given boundary. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

PFLOW

Field: no  History: yes  .fil: no  .dat: automatic  

Power flow from a given portion of the model through the given boundary. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

RADEN

Field: no  History: yes  .fil: no  .dat: automatic  

Radiated energy from/into a given acoustic cavity through the given boundary. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

RADPOW

Field: no  History: yes  .fil: no  .dat: automatic  

Radiated power from/into a given acoustic cavity through the given boundary. This variable is available only in mode-based and direct-solution steady-state dynamic analyses.

ALLHUMDFLUX

Field: no  History: yes  .fil: no  .dat: automatic  

All heat energy due to the nonuniform moving flux prescribed inside user subroutine UMDFLUX. This variable is available only in pure heat transfer analyses. (Available only for the whole model.)

ALLUSER

Field: no  History: yes  .fil: no  .dat: no  

User-defined quantity that can be set only in user subroutines for pure heat transfer analyses. Its value is set through calls to the utility routine SETALLUSER.