For linear static analyses using solid or shell elements, use the PRERR command to list the estimated
solution error due to mesh discretization (Main Menu> General Postproc> List Results> Percent Error).
This command calculates and lists the percent error in structural energy norm (SEPC), which represents
the error relative to a particular mesh discretization.
Option: Structural Energy Error Estimation
Use PLESOL,SERR to contour the element-by-element structural energy error (SERR) (Main Menu>
General Postproc> Plot Results> Contour Plot> Element Solu). Regions of high SERR on the contour
display are good candidates for mesh refinement. (You can activate automatic mesh refinement by
means of the ADAPT command - see the Modeling and Meshing Guide for more information.) See Estim-
ating Solution Error in the Basic Analysis Guide for more details about error estimation.
Option: Contour Displays
Use PLNSOL and PLESOL to contour almost any result item, such as stresses (SX, SY, SZ...), strains (EPELX,
EPELY, EPELZ...), and displacements (UX, UY, UZ...) (Main Menu> General Postproc> Plot Results>
Contour Plot> Nodal Solu or Element Solu).
The KUND field on PLNSOL and PLESOL gives you the option of overlaying the undeformed shape on
the display.
Use PLETAB and PLLS to contour element table data and line element data (Main Menu> General
Postproc> Element Table> Plot Element Table and Main Menu> General Postproc> Plot Results>
Contour Plot> Line Elem Res).
CautionDerived data, such as stresses and strains, are averaged at the nodes by the PLNSOL com-
mand. This averaging results in "smeared" values at nodes where elements of different ma-
terials, different shell thicknesses, or other discontinuities meet.To avoid the smearing effect,
use selecting (described in Selecting and Components in the Basic Analysis Guide) to select
elements of the same material, same shell thickness, and so on before issuing PLNSOL. Al-
ternatively, use PowerGraphics with the AVRES command (Main Menu> General Postproc>
Options for Outp) to not average results across different materials and/or different shell
thicknesses.Option: Vector Displays
Use PLVECT to view vector displays (Main Menu> General Postproc> Plot Results> Vector Plot>
Predefined) and PRVECT to view vector listings (Main Menu> General Postproc> List Results> Vector
Data).
Vector displays (not to be confused with vector mode) are an effective way of viewing vector quantities,
such as displacement (DISP), rotation (ROT ), and principal stresses (S1, S2, S3).
Option: Tabular Listings
Use these commands to produce tabular listings:
Command(s):PRNSOL (nodal results),PRESOL (element-by-element results) PRRSOL (reaction data), and so
on
GUI: Main Menu> General Postproc> List Results> solution option
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationPerforming a Static Analysis