Two-Way Radio User Manual

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STATIC
18.31
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STATIC: Static stress/displacement analysis.
This option is used to indicate that the step should be analyzed as a static load step.
Product: ABAQUS/Standard
Type: History data
Level: Step
References:
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“Static stress analysis,” Section 6.2.2 of the ABAQUS Analysis User’s Manual
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“Unstable collapse and postbuckling analysis,” Section 6.2.4 of the ABAQ US Analysis U ser’s Manual
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“Adiabatic analysis,” Section 6.5.5 of the ABAQUS Ana lysis User’s Manual
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“Solving nonlinear problems,” Section 7.1.1 of the A BAQU S Analysis User ’s Manual
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“Deformation plasticity,” Section 18.2.13 of the ABAQUS Analysis User’s Manual
No parameters or data lines are used in a linear perturbation analysis.
Optional parameters for a g eneral static analysis:
ADIABATIC
Include this parameter to perform an adiabatic stress analysis. This parameter is relevant only for
isotropic metal plasticity m aterials with a Mises yield surface and when the
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INELASTIC HE AT
FRACTION option has been specified.
DIRECT
This parameter selects direct user control of the incrementation through the step. If this parameter
is used, constant increments of the size defined by the first item on the data line are used. If this
parameter is omitted, ABAQUS/Standard will choose the increments (after tryin g the user’s initial
time increm ent for the first attempt at the first increment).
The parameter can have the value NO STOP. If this value is included, the solution to an
increment is accepted after the maximum num ber of iterations allowed has been completed (as
defined by the
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CONTROLS option), even if the equilibrium tolerances are not satisfied. Very
small increments and a minimum of two iterations are usually necessary if this value is used. This
approach is not recommended; it should be used only in special cases when the analyst has a
thorough understanding of how to interpret results obtained in this way.
FACTOR
Set this parameter equal to the damping factor to be used in the automatic damping algorithm
(see “Solving nonlinear problems,” Sect ion 7.1.1 of the ABAQUS Ana lysis User’s Manual) if the
problem is expected to be unstable due to local instabilities and the damping factor calculated
18.31–1
ABAQUS Version 6.1 Module:
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