Mechanical APDL Structural Analysis Guide

2.2.3.6. Mode Number

This load step option is used for axisymmetric harmonic elements.
Command(s):MODE
GUI: Main Menu> Solution> Load Step Opts> Other> For Harmonic Ele

2.2.3.7. Creep Criteria

This nonlinear load step option specifies the creep criterion for automatic time stepping.
Command(s):CRPLIM
GUI: Main Menu> Solution> Unabridged Menu> Load Step Opts> Nonlinear> Creep Criterion

2.2.3.8. Printed Output.

Use this load step option to include any results data on the output file (Jobname.OUT).
Command(s):OUTPR
GUI: Main Menu> Solution> Unabridged Menu> Load Step Opts> Output Ctrls> Solu Printout

Caution

Proper use of multiple OUTPR commands can sometimes be a little tricky. See Setting Output

Controls in the Basic Analysis Guide for more information on how to use this command.

2.2.3.9. Extrapolation of Results

Use this load step option to review element integration point results by copying them to the nodes
instead of extrapolating them (default when no material nonlinearities are present).
Command(s):ERESX
GUI: Main Menu> Solution> Unabridged Menu> Load Step Opts> Output Ctrls> Integration Pt

2.2.4. Apply the Loads

After you set the desired solution options, you are ready to apply loads to the model.

2.2.4.1. Load Types

All of the following load types are applicable in a static analysis.

2.2.4.1.1. Displacements (UX, UY, UZ, ROTX, ROTY, ROTZ)

These are DOF constraints usually specified at model boundaries to define rigid support points. They
can also indicat e symmetry boundary conditions and points of known motion.The directions implied
by the labels are in the nodal coordinate system.

2.2.4.1.2. Velocities (VELX, VELY, VELZ, OMGX, OMGY, OMGZ).

The displacement constraints can be replaced by the equivalent differentiation forms, which are the
corresponding velocity loads. If a velocity load is present, the displacement constraint at the current
time step is calculated as the displacement constraint at the previous time step plus the input velocity
value times the time step. For example, if VELX is input the ux constraint is: ux(t+dt) = ux(t) + v(t)*dt.

The directions implied by the velocity load labels are in the nodal coordinate system.

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Performing a Static Analysis