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General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.

ANSYS MAPDL doesn’t calculate stress

    • Talal
      Subscriber

      Hello,


      My computer seems to not want to process stress or strain for a simple static analysis on MAPDL: "The requested S data is not available. The PLNSOL command is ignored.". 


      On other computers it seems to work just fine.


      I have ansys studette 2019R2


       

    • ChristianGuzmanP
      Subscriber

      Hi,


      Have you had any solution? I am having the same problem


       



       


      I am doing a simple ex.


      This is the code:


       


      FINISH           !close all previous modules
      /CLEAR           !clear all previous models
      /TITLE, Cantilever beam

      /PREP7           !start PRE-PROCESSOR MODULE
      ET,1,SOLID185    !element type #1: SOLID185 (3 DoF)
      KEYOPT,1,2,3     !element #1: keyoption 2=3
      MP,EX,1,210000   !Young's modulus for material #1
      MP,NUXY,1,0.3    !Poisson modulus for material #1

      BLOCK,0,2000,0,100,0,200   !create a solid of 2mx100mmx200mm

      LESIZE,5,,,40    !40 divisions in line 5 (2m)
      LESIZE,6,,,4     !4 division in line 6 (100mm)
      LESIZE,10,,,8    !8 divisions in line 10 (200mm)

      MSHAPE,0,3D      !hexaedral-shape: Element shape to be used for meshing
      VMESH,1          !mesh volume

      FINISH           !end of PRE-PROCESSOR MODULE

      /SOLU            !start SOLUTION MODULE
      ANTYPE,0         !static analysis
      NSUBST,10,0,0    !perform the analysis in 10 sub-steps
      OUTRES,ALL,1     !write results for each sub-step
      TIME,1           !end time of the analysis

      DL,10,,UY,-1     !applied 1mm displacement in vertical direction at x=2000mm.
                       !bottom line of the area
      DA,5,ALL         !clamped area at x=0
       
      SOLVE            !solve the current load case
      FINISH           !end of the SOLUTION MODULE


       


      /POST1                !start Post-Processor module
      PLDISP,1              !plot the deformed shape
      PLESOL,S,EQV,0,1.     !contour plot of Von Mises stress
      PLESOL,S,X,0,1       !contour plot of stress in X-direction
      PLESOL,EPEL,X,0,1.    !contour plot of strain in X-direction
      PLESOL,EPEL,1,0,1.    !contour plot of principal strain


       


      So, APDL doesn't show the stress and strain


       


      Any of you have any idea how to solve this problem?


       


      Thanks

    • Talal
      Subscriber

      Hello,


      Yes i have found a solution. 


      -Type in search bar on your pc and open : Mechanical APDL Product Launcher
      -Select the tab : High Performance Computer Setup
      -Change from "Distributed Computing (DMP)" to "Shared-Memory Parrarel (SMP)"


      i haven't tweaked with the other settings you can try. Try without touching the rest first.


      Good luck


       

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