KBC,...! Ramped or stepped loads
OUTRES,...! Results-file data controls
---
SOLVE! Solve 2nd load step (first transient load step)
FINISH
! Review results of the mode-superposition solution
/POST26! Enter POST26
FILE,,RDSP! Results file is Jobname.RDSP
SOLU,...! Store solution summary data
NSOL,...! Store nodal result as a variable
PLVAR,...! Plot variables
PRVAR,...! List variables
FINISH
! Expand the Solution
/SOLU! Reenter SOLUTION
EXPASS,ON! Expansion pass
NUMEXP,...! No. of solutions to expand; time range
OUTRES,...! Results-file data controls
SOLVE
FINISH
! Review the Results of the Expanded Solution
/POST1
SET,...! Read desired set of results into database
PLDISP,...! Deformed shape
PRRSOL,...! Reaction loads
PLNSOL,...! Contour plot of nodal results
PRERR! Global percent error (a measure of mesh adequacy)
---
---! Other postprocessing as desired
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FINISHSee the Command Reference for discussions of the ANTYPE,MODOPT,ACEL,TRNOPT,LVSCALE,
MDAMP,DELTIM,TIME,KBC,OUTRES,LSSOLVE,FILE,SOLU,NSOL,PLVAR,PRVAR,EXPASS,NUMEXP,
OUTRES,PLDISP,PRRSOL,PLNSOL, and PRERR commands.
5.5. Performing a Prestressed Transient Dynamic Analysis
A prestressed transient dynamic analysis calculates the dynamic response of a prestressed structure,
such as a heat-treated part with residual thermal stresses. Prestressed-analysis procedures vary, depending
on the type of transient dynamic analysis being performed.
5.5.1. Prestressed Full Transient Dynamic Analysis
You can include prestressing effects in a full transient dynamic analysis by applying the prestressing
loads in a preliminary static load step. (Do not remove these loads in subsequent load steps.) The pro-
cedure consists of two steps:
- Build your model, enter SOLUTION, and define a transient analysis type (ANTYPE,TRANS).
- Apply all prestressing loads.
- Turn time integration effects off (TIMINT,OFF).
- If you need to include large strain, large deflection, or stress stiffening effects, issue NLGEOM,ON.
- Set time equal to some small dummy value (TIME).
- Write your first load step to Jobname.S01 (LSWRITE).
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationPerforming a Prestressed Transient Dynamic Analysis