General Mechanical

General Mechanical

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

Ansys contact assigning problem in static structural

    • sruthyvs
      Subscriber
      I an a newbie to ansys. I need to design a soil pile continuum model in ansys 19.2.I am using a licensed software. I have created a concrete circular single end bearing pile of 500mm Dia and 12m depth in a soil block of 10*10*12 having 5 soil layers of sand and clay..... Including 6 main rebars... 17 top stirrups and... 11 bottom stirrups. I am doing this work to get this settlement analysis in Mohr coulumb model. I found issue in dealing with connections and contacts. I have given bonded connection for steel to concrete, steel rft with stirrups, bw soil layer and frictional contact with coefficient 0.2 for concrete to soil connections. But there occurred problems of overlapping and penetration.... I have just created a default mesh having 0.67m element size with 204484 elements and 981245 nodes with 40 bodies of total... A remote force of - 90Ton but m not getting the total and directional deformation... Saying an unknown error.... And CPU time elapsed..... I am using an i7 lap with 16gb ram and graphics card.... Please help me out to sort out my problem.... I jzt need information on assigning contacts and mesh. I have created contact tool... But some of the contacts are seen inactive and one contact is bonded and closed but has a large amount of penetration and gap? I don't know what it means and how can I solve this.... I just wanna find the soil settlement ie deformation of soil and pile as a whole....
    • SaiD
      Ansys Employee

      Hello,


      Could you share images of the geometry and the contact pair where the problem is occurring? For example, may be share the list of inactive contacts and a sample image of the geometry for one such contact?


      Sai


       

    • sruthyvs
      Subscriber

      Thank you sir for your reply.Please find below the images of the ansys model you have asked for.i am looking forwars for your reply and sorry for the late reply.


      soil pile modelstirrups and rft inside view


       

    • SaiD
      Ansys Employee

      Hi,


      Since it says its an unknown error, I am unable to make any guesses without additional information. But go through the post below, especially the part about contacts, and see if that helps in anyway:


      /forum/forums/topic/errors-reinforced-concrete-beam/?order=all#comment-fc66c85a-758c-47f2-b987-a92201038629


      Sai

    • sruthyvs
      Subscriber

      i coulnt solve the issue sir.could u plz help me? plz find the solver output file attached below.


      ANSYS Mechanical Enterprise                      


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                *****  ANSYS COMMAND LINE ARGUMENTS  *****
        BATCH MODE REQUESTED (-b)    = NOLIST
        INPUT FILE COPY MODE (-c)    = COPY
        DISTRIBUTED MEMORY PARALLEL REQUESTED
             2 PARALLEL PROCESSES REQUESTED WITH SINGLE THREAD PER PROCESS
          TOTAL OF     2 CORES REQUESTED
        MPI OPTION                   = INTELMPI
        INPUT FILE NAME              = F:SDWORKSPACEMINI-PROJECT ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL WITH MANUAL CONTACTS 30-04-2020600mm DIAMETER_ProjectScratchScrF9B3dummy.dat
        OUTPUT FILE NAME             = F:SDWORKSPACEMINI-PROJECT ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL WITH MANUAL CONTACTS 30-04-2020600mm DIAMETER_ProjectScratchScrF9B3solve.out
        START-UP FILE MODE           = NOREAD
        STOP FILE MODE               = NOREAD

       RELEASE= Release 19.2         BUILD= 19.2      UP20180808   VERSION=WINDOWS x64
       CURRENT JOBNAME=file0  112:46  APR 30, 2020 CP=      0.172


       PARAMETER _DS_PROGRESS =     999.0000000   

       /INPUT FILE= ds.dat  LINE=       0



       *** NOTE ***                            CP =       0.297   TIME= 112:46
       The /CONFIG,NOELDB command is not valid in a Distributed ANSYS         
       solution.  Command is ignored.                                         

       *GET  _WALLSTRT  FROM  ACTI  ITEM=TIME WALL  VALUE=  11.5461111   

       TITLE=
       TRIAL-1(600mm dia)--Static Structural (B5)                                   


       SET PARAMETER DIMENSIONS ON  _WB_PROJECTSCRATCH_DIR
        TYPE=STRI  DIMENSIONS=      248        1        1

       PARAMETER _WB_PROJECTSCRATCH_DIR(1) = F:SDWORKSPACEMINI-PROJECT ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL WITH MANUAL CONTACTS 30-04-2020600mm DIAMETER_ProjectScratchScrF9B3

       SET PARAMETER DIMENSIONS ON  _WB_SOLVERFILES_DIR
        TYPE=STRI  DIMENSIONS=      248        1        1

       PARAMETER _WB_SOLVERFILES_DIR(1) = F:SDWORKSPACEMINI-PROJECT ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL WITH MANUAL CONTACTS 30-04-2020600mm DIAMETERTRIAL-1(600mm dia)_filesdp0SYS-1MECH

       SET PARAMETER DIMENSIONS ON  _WB_USERFILES_DIR
        TYPE=STRI  DIMENSIONS=      248        1        1

       PARAMETER _WB_USERFILES_DIR(1) = F:SDWORKSPACEMINI-PROJECT ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL WITH MANUAL CONTACTS 30-04-2020600mm DIAMETERTRIAL-1(600mm dia)_filesuser_files
       --- Data in consistent MKS units. See Solving Units in the help system for more

       MKS UNITS SPECIFIED FOR INTERNAL   
        LENGTH        (l)  = METER (M)
        MASS          (M)  = KILOGRAM (KG)
        TIME          (t)  = SECOND (SEC)
        TEMPERATURE   (T)  = CELSIUS (C)
        TOFFSET            = 273.0
        CHARGE        (Q)  = COULOMB
        FORCE         (f)  = NEWTON (N) (KG-M/SEC2)
        HEAT               = JOULE (N-M)

        PRESSURE           = PASCAL (NEWTON/M**2)
        ENERGY        (W)  = JOULE (N-M)
        POWER         (P)  = WATT (N-M/SEC)
        CURRENT       (i)  = AMPERE (COULOMBS/SEC)
        CAPACITANCE   (C)  = FARAD
        INDUCTANCE    (L)  = HENRY
        MAGNETIC FLUX      = WEBER
        RESISTANCE    (R)  = OHM
        ELECTRIC POTENTIAL = VOLT

       INPUT  UNITS ARE ALSO SET TO MKS

       *** ANSYS - ENGINEERING ANALYSIS SYSTEM  RELEASE Release 19.2     19.2     ***
       DISTRIBUTED ANSYS Mechanical Enterprise                      

       00000000  VERSION=WINDOWS x64   112:46  APR 30, 2020 CP=      0.297

       TRIAL-1(600mm dia)--Static Structural (B5)                                   



                ***** ANSYS ANALYSIS DEFINITION (PREP7) *****
       *********** Nodes for the whole assembly ***********
       *********** Elements for Body 1 "MEDIUM  SAND 2" ***********
       *********** Elements for Body 2 "MEDIUM SAND 1" ***********
       *********** Elements for Body 3 "SILTY SANDY CLAY 3" ***********
       *********** Elements for Body 4 "SILTY SANDY CLAY 2" ***********
       *********** Elements for Body 5 "SILTY SANDY CLAY 1" ***********
       *********** Elements for Body 6 "CONCRETE-PILE" ***********
       *********** Elements for Body 7 "TOP STIRRUPS 1" ***********
       *********** Elements for Body 8 "TOP STIRRUPS 2" ***********
       *********** Elements for Body 9 "TOP STIRRUPS 3" ***********
       *********** Elements for Body 10 "TOP STIRRUPS 4" ***********
       *********** Elements for Body 11 "TOP STIRRUPS 5" ***********
       *********** Elements for Body 12 "TOP STIRRUPS 6" ***********
       *********** Elements for Body 13 "TOP STIRRUPS 7" ***********
       *********** Elements for Body 14 "TOP STIRRUPS 8" ***********
       *********** Elements for Body 15 "TOP STIRRUPS 9" ***********
       *********** Elements for Body 16 "TOP STIRRUPS 10" ***********
       *********** Elements for Body 17 "TOP STIRRUPS 11" ***********
       *********** Elements for Body 18 "TOP STIRRUPS 12" ***********
       *********** Elements for Body 19 "TOP STIRRUPS 13" ***********
       *********** Elements for Body 20 "TOP STIRRUPS 14" ***********
       *********** Elements for Body 21 "TOP STIRRUPS 15" ***********
       *********** Elements for Body 22 "TOP STIRRUPS 16" ***********
       *********** Elements for Body 23 "TOP STIRRUPS 17" ***********
       *********** Elements for Body 24 "BOTTOM STIRRUPS 1" ***********
       *********** Elements for Body 25 "BOTTOM STIRRUPS 2" ***********
       *********** Elements for Body 26 "BOTTOM STIRRUPS 3" ***********
       *********** Elements for Body 27 "BOTTOM STIRRUPS 4" ***********
       *********** Elements for Body 28 "BOTTOM STIRRUPS 5" ***********
       *********** Elements for Body 29 "BOTTOM STIRRUPS 6" ***********
       *********** Elements for Body 30 "BOTTOM STIRRUPS 7" ***********
       *********** Elements for Body 31 "BOTTOM STIRRUPS 8" ***********
       *********** Elements for Body 32 "BOTTOM STIRRUPS 9" ***********
       *********** Elements for Body 33 "BOTTOM STIRRUPS 10" ***********
       *********** Elements for Body 34 "BOTTOM STIRRUPS 11" ***********
       *********** Elements for Body 35 "MAIN LONG REBARS 1" ***********
       *********** Elements for Body 36 "MAIN LONG REBARS 2" ***********
       *********** Elements for Body 37 "MAIN LONG REBARS 3" ***********
       *********** Elements for Body 38 "MAIN LONG REBARS 4" ***********
       *********** Elements for Body 39 "MAIN LONG REBARS 5" ***********
       *********** Elements for Body 40 "MAIN LONG REBARS 6" ***********
       *********** Send User Defined Coordinate System(s) ***********
       *********** Set Reference Temperature ***********
       *********** Send Materials ***********
       *********** Create Contact "Frictional - CONCRETE-PILE To Multiple" ***********
                   Real Constant Set For Above Contact Is 42 & 41
       *********** Create Contact "Bonded - MEDIUM  SAND 2 To MEDIUM SAND 1" *********
                   Real Constant Set For Above Contact Is 44 & 43
       *********** Create Contact "Bonded - MEDIUM SAND 1 To SILTY SANDY CLAY 3" *****
                   Real Constant Set For Above Contact Is 46 & 45
       *********** Create Contact "Bonded - SILTY SANDY CLAY 3 To SILTY SANDY CLAY 2"
                   Real Constant Set For Above Contact Is 48 & 47
       *********** Create Contact "Bonded - SILTY SANDY CLAY 2 To SILTY SANDY CLAY 1"
                   Real Constant Set For Above Contact Is 50 & 49
       *********** Create Contact "Bonded - CONCRETE-PILE To Multiple" ***********
                   Real Constant Set For Above Contact Is 52 & 51
       *********** Create Contact "Bonded - Multiple To Multiple" ***********
                   Real Constant Set For Above Contact Is 54 & 53
       *********** Fixed Supports ***********
       *********** Define Pressure Using Surface Effect Elements ***********


       ***** ROUTINE COMPLETED *****  CP =         6.219


       --- Number of total nodes = 975357
       --- Number of contact elements = 547031
       --- Number of spring elements = 0
       --- Number of bearing elements = 0
       --- Number of solid elements = 202818
       --- Number of condensed parts = 0
       --- Number of total elements = 749849

       *GET  _WALLBSOL  FROM  ACTI  ITEM=TIME WALL  VALUE=  11.5472222   
       ****************************************************************************
       *************************    SOLUTION       ********************************
       ****************************************************************************

       *****  ANSYS SOLUTION ROUTINE  *****


       PERFORM A STATIC ANALYSIS
        THIS WILL BE A NEW ANALYSIS

       LARGE DEFORMATION ANALYSIS

       USE SPARSE MATRIX DIRECT SOLVER

       CONTACT INFORMATION PRINTOUT LEVEL       1

       DO NOT COMBINE ELEMENT MATRIX FILES (.emat) AFTER DISTRIBUTED PARALLEL SOLUTION

       DO NOT COMBINE ELEMENT SAVE DATA FILES (.esav) AFTER DISTRIBUTED PARALLEL SOLUTION

       NLDIAG: Nonlinear diagnostics CONT option is set to ON.
               Writing frequency : each ITERATION.

       DEFINE RESTART CONTROL FOR LOADSTEP LAST
       AT FREQUENCY OF LAST AND NUMBER FOR OVERWRITE IS    0

       DELETE RESTART FILES OF ENDSTEP
       ****************************************************
       ******************* SOLVE FOR LS 1 OF 1 ****************

       SELECT       FOR ITEM=TYPE COMPONENT=   
        IN RANGE        55 TO         55 STEP          1

              147  ELEMENTS (OF     749849  DEFINED) SELECTED BY  ESEL  COMMAND.

       SELECT      ALL NODES HAVING ANY ELEMENT IN ELEMENT SET.

              488 NODES (OF     975357  DEFINED) SELECTED FROM
            147 SELECTED ELEMENTS BY NSLE COMMAND.

       GENERATE SURFACE LOAD PRES ON SURFACE DEFINED BY ALL SELECTED NODES
       VALUES=  346840.000      0.00000000   

       NUMBER OF PRES ELEMENT FACE LOADS STORED =        147

       ALL SELECT   FOR ITEM=NODE COMPONENT=   
        IN RANGE         1 TO     975357 STEP          1

           975357  NODES (OF     975357  DEFINED) SELECTED BY NSEL  COMMAND.

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   
        IN RANGE         1 TO     749849 STEP          1

           749849  ELEMENTS (OF     749849  DEFINED) SELECTED BY  ESEL  COMMAND.

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   
        IN RANGE         1 TO     749849 STEP          1

           749849  ELEMENTS (OF     749849  DEFINED) SELECTED BY  ESEL  COMMAND.

       PRINTOUT RESUMED BY /GOP

       USE AUTOMATIC TIME STEPPING THIS LOAD STEP

       USE       1 SUBSTEPS INITIALLY THIS LOAD STEP FOR ALL  DEGREES OF FREEDOM
       FOR AUTOMATIC TIME STEPPING:
         USE     10 SUBSTEPS AS A MAXIMUM
         USE      1 SUBSTEPS AS A MINIMUM

       TIME=  1.0000   

       ERASE THE CURRENT DATABASE OUTPUT CONTROL TABLE.


       WRITE ALL  ITEMS TO THE DATABASE WITH A FREQUENCY OF NONE
         FOR ALL APPLICABLE ENTITIES

       WRITE NSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
         FOR ALL APPLICABLE ENTITIES

       WRITE RSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
         FOR ALL APPLICABLE ENTITIES

       WRITE STRS ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
         FOR ALL APPLICABLE ENTITIES

       WRITE EPEL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
         FOR ALL APPLICABLE ENTITIES

       WRITE EPPL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL
         FOR ALL APPLICABLE ENTITIES

       NONLINEAR STABILIZATION CONTROL:
       KEY=OFF


       *GET  ANSINTER_  FROM  ACTI  ITEM=INT        VALUE=  0.00000000   

       *IF  ANSINTER_                         ( =   0.00000     )  NE 
            0                                 ( =   0.00000     )  THEN   

       *ENDIF

       *** NOTE ***                            CP =       7.531   TIME= 112:51
       The automatic domain decomposition logic has selected the MESH domain  
       decomposition method with 2 processes per solution.                    

       *****  ANSYS SOLVE    COMMAND  *****

       *** WARNING ***                         CP =       7.875   TIME= 112:51
       Element shape checking is currently inactive.  Issue SHPP,ON or        
       SHPP,WARN to reactivate, if desired.                                   

       *** NOTE ***                            CP =       8.375   TIME= 112:52
       The model data was checked and warning messages were found.            
        Please review output or errors file ( F:SDWORKSPACEMINI-PROJECT    
       ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL  
       WITH MANUAL CONTACTS 30-04-2020600mm                                  
       DIAMETER_ProjectScratchScrF9B3file0.err ) for these warning         
       messages.                                                              

       *** SELECTION OF ELEMENT TECHNOLOGIES FOR APPLICABLE ELEMENTS ***
            --- GIVE SUGGESTIONS AND RESET THE KEY OPTIONS ---

       ELEMENT TYPE    1 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE    2 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE    3 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE    4 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE    5 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE    6 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE    7 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE    8 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE    9 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   10 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   11 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   12 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   13 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   14 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   15 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   16 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   17 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   18 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   19 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   20 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   21 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   22 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   23 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   24 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   25 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   26 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   27 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   28 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   29 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   30 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   31 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   32 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   33 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   34 IS SOLID187. IT IS NOT ASSOCIATED WITH FULLY INCOMPRESSIBLE
       HYPERELASTIC MATERIALS. NO SUGGESTION IS AVAILABLE AND NO RESETTING IS NEEDED.

       ELEMENT TYPE   35 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE   36 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE   37 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE   38 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE   39 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0

       ELEMENT TYPE   40 IS SOLID186. KEYOPT(2)=0 IS SUGGESTED AND HAS BEEN RESET.
        KEYOPT(1-12)=    0    0    0    0    0    0    0    0    0    0    0    0



       *** ANSYS - ENGINEERING ANALYSIS SYSTEM  RELEASE Release 19.2     19.2     ***
       DISTRIBUTED ANSYS Mechanical Enterprise                      

       00000000  VERSION=WINDOWS x64   112:52  APR 30, 2020 CP=      8.516

       TRIAL-1(600mm dia)--Static Structural (B5)                                   



                             S O L U T I O N   O P T I O N S

         PROBLEM DIMENSIONALITY. . . . . . . . . . . . .3-D                 
         DEGREES OF FREEDOM. . . . . . UX   UY   UZ 
         ANALYSIS TYPE . . . . . . . . . . . . . . . . .STATIC (STEADY-STATE)
         OFFSET TEMPERATURE FROM ABSOLUTE ZERO . . . . .  273.15   
         NONLINEAR GEOMETRIC EFFECTS . . . . . . . . . .ON
         EQUATION SOLVER OPTION. . . . . . . . . . . . .SPARSE            
         PLASTIC MATERIAL PROPERTIES INCLUDED. . . . . .YES
         NEWTON-RAPHSON OPTION . . . . . . . . . . . . .PROGRAM CHOSEN  
         GLOBALLY ASSEMBLED MATRIX . . . . . . . . . . .SYMMETRIC 

       *** WARNING ***                         CP =       9.578   TIME= 112:53
       Material number 55 (used by element 749703) should normally have at    
       least one MP or one TB type command associated with it.  Output of     
       energy by material may not be available.                               

       *** NOTE ***                            CP =       9.719   TIME= 112:53
       The step data was checked and warning messages were found.             
        Please review output or errors file ( F:SDWORKSPACEMINI-PROJECT    
       ANSYS WORKANSYS WORK (05-04-2020)SOIL-PILE MODEL TRIAL 1SOIL MODEL  
       WITH MANUAL CONTACTS 30-04-2020600mm                                  
       DIAMETER_ProjectScratchScrF9B3file0.err ) for these warning         
       messages.                                                              

       *** NOTE ***                            CP =       9.719   TIME= 112:53
       This nonlinear analysis defaults to using the full Newton-Raphson      
       solution procedure.  This can be modified using the NROPT command.     

       *** NOTE ***                            CP =       9.719   TIME= 112:53
       The conditions for direct assembly have been met.  No .emat or .erot   
       files will be produced.                                                

       *** NOTE ***                            CP =      18.500   TIME= 113:02
       The initial memory allocation (-m) has been exceeded.                  
        Supplemental memory allocations are being used.                       

       Memory resident data base increased from      1024 MB to      2048 MB.

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Symmetric Deformable- deformable contact pair identified by real       
       constant set 41 and contact element type 41 has been set up.  The      
       companion pair has real constant set ID 42.  Both pairs should have    
       the same behavior.                                                     
       ANSYS will keep the current pair and deactivate its companion pair,    
       resulting in asymmetric contact.                                       
       Contact algorithm: Augmented Lagrange method
       Contact detection at: Gauss integration point
       Contact stiffness factor FKN                  1.0000   
       The resulting initial contact stiffness      0.44683E+10
       Default penetration tolerance factor FTOLN   0.10000   
       The resulting penetration tolerance          0.37662E-02
       Max. initial friction coefficient MU         0.20000   
       Default tangent stiffness factor FKT          1.0000   
       Default elastic slip factor SLTOL            0.10000E-01
       The resulting elastic slip tolerance         0.67866E-03
       Update contact stiffness at each iteration
       Default Max. friction stress TAUMAX          0.10000E+21
       Average contact surface length               0.67866E-01
       Average contact pair depth                   0.37662E-01
       Default pinball region factor PINB            2.0000   
       The resulting pinball region                 0.75324E-01
       Auto contact offset used to close gap         0.0000   
       Initial penetration is excluded.

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Max.  Initial penetration 1.331797793E-03 was detected between contact 
       element 209964 and target element 216792.                              
       You may move entire target surface by : x= -1.327201114E-03, y=        
       1.807172058E-18, z= 1.10555704E-04,to reduce initial penetration.      
       ****************************************
       

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Symmetric Deformable- deformable contact pair identified by real       
       constant set 42 and contact element type 41 has been set up.  The      
       companion pair has real constant set ID 41.  Both pairs should have    
       the same behavior.                                                     
       ANSYS will deactivate the current pair and keep its companion pair,    
       resulting in asymmetric contact.                                       
       Contact algorithm: Augmented Lagrange method
       Contact detection at: Gauss integration point
       Contact stiffness factor FKN                  1.0000   
       The resulting initial contact stiffness      0.44683E+10
       Default penetration tolerance factor FTOLN   0.10000   
       The resulting penetration tolerance          0.33540E-01
       Max. initial friction coefficient MU         0.20000   
       Default tangent stiffness factor FKT          1.0000   
       Default elastic slip factor SLTOL            0.10000E-01
       The resulting elastic slip tolerance         0.35908E-02
       Update contact stiffness at each iteration
       Default Max. friction stress TAUMAX          0.10000E+21
       Average contact surface length               0.35908   
       Average contact pair depth                   0.33540   
       Default pinball region factor PINB            2.0000   
       The resulting pinball region                 0.67081   

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       One of the contact searching regions contains at least 768 target      
       elements.  You may reduce the pinball radius.                          
       Auto contact offset used to close gap         0.0000   
       Initial penetration is excluded.

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Max.  Initial penetration 1.218320269E-03 was detected between contact 
       element 214856 and target element 206549.                              
       You may move entire target surface by : x= -1.016706124E-03, y=        
       -3.564265712E-20, z= -6.712770927E-04,to reduce initial penetration.   
       ****************************************
       

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Symmetric Deformable- deformable contact pair identified by real       
       constant set 43 and contact element type 43 has been set up.  The      
       companion pair has real constant set ID 44.  Both pairs should have    
       the same behavior.                                                     
       ANSYS will keep the current pair and deactivate its companion pair,    
       resulting in asymmetric contact.                                       
       Small sliding logic is assumed
       Contact algorithm: Augmented Lagrange method
       Contact detection at: Gauss integration point
       Contact stiffness factor FKN                  1.0000   
       The resulting initial contact stiffness      0.39111E+10
       Default penetration tolerance factor FTOLN   0.10000   
       The resulting penetration tolerance          0.40909E-01
       Default opening contact stiffness OPSF will be used.
       Default tangent stiffness factor FKT          1.0000   
       Default elastic slip factor SLTOL            0.50000E-02
       The resulting elastic slip tolerance         0.20307E-02
       Update contact stiffness at each iteration
       Default Max. friction stress TAUMAX          0.10000E+21
       Average contact surface length               0.40615   
       Average contact pair depth                   0.40909   
       Default pinball region factor PINB           0.50000   
       The resulting pinball region                 0.20455   
       Initial penetration/gap is excluded.
       Bonded contact (always) is defined.

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Max.  Initial penetration 1.776356839E-15 was detected between contact 
       element 218125 and target element 218239.                              
       ****************************************
       

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Symmetric Deformable- deformable contact pair identified by real       
       constant set 44 and contact element type 43 has been set up.  The      
       companion pair has real constant set ID 43.  Both pairs should have    
       the same behavior.                                                     
       ANSYS will deactivate the current pair and keep its companion pair,    
       resulting in asymmetric contact.                                       
       Small sliding logic is assumed
       Contact algorithm: Augmented Lagrange method
       Contact detection at: Gauss integration point
       Contact stiffness factor FKN                  1.0000   
       The resulting initial contact stiffness      0.39111E+10
       Default penetration tolerance factor FTOLN   0.10000   
       The resulting penetration tolerance          0.40909E-01
       Default opening contact stiffness OPSF will be used.
       Default tangent stiffness factor FKT          1.0000   
       Default elastic slip factor SLTOL            0.50000E-02
       The resulting elastic slip tolerance         0.20696E-02
       Update contact stiffness at each iteration
       Default Max. friction stress TAUMAX          0.10000E+21
       Average contact surface length               0.41392   
       Average contact pair depth                   0.40909   
       Default pinball region factor PINB           0.50000   
       The resulting pinball region                 0.20455   
       Initial penetration/gap is excluded.
       Bonded contact (always) is defined.

       *** NOTE ***                            CP =      33.484   TIME= 113:17
       Max.  Initial penetration 1.776356839E-15 was detected between contact 
       element 218171 and target element 218057.       &n
    • SaiD
      Ansys Employee

      Hi,


      This is what I found in the image that you shared:


      *** ERROR ***                           CP =     202.219   TIME= 11:44:02
       There is not enough memory for the Distributed Sparse Matrix Solver to 
       proceed using the out-of-core memory mode.  The total memory required  
       by all processes = 19019 MB.  The total physical memory that is        
       available on the system = 15468 MB.  Please decrease the model size,   
       or run this model on another system with more physical memory.         


       


      So looks like the memory in your system is not enough to handle this problem. If possible, you could run this problem on a larger system with more memory. But before that it would be advisable to get some approximate results and make sure the system gets solved without any other issues or mistakes. One way to reduce the number of equations to be solved is by using a coarser mesh i.e. by using a larger element size. This will reduce the accuracy of the solution, but hopefully it will at least solve the problem and give you an approximate result. Another way would be to use bonded contact instead of frictional contact in places that you can (where the relative movement between two surfaces is negligible). Try these things and we can discuss further if need be.


       

    • sruthyvs
      Subscriber

      Hy Sir,


      Thank you for your reply.I can't go for a larger system usage at preset situation..all I could do is to get at-least an approximate result with my present system.I can cut down the size of the model by reducing the size of the soil block  to 5 times dia than 10 times dia used before.I wanna know may this help me?Also cutting the 5 soil layers to 2 layers or cutting length to an extend can be tried, but will it help me out to solve this?While doing the connection I firstly had chosen automatic connections, then I got about 206 overlapping connections from the total of 207 connections. Plz let me know how can I solve this issue of over-lapping connections.Could you plz explain me what is penetration tolerance,face over-lapping tolerance ,elastic slippage etc?Also I had found many connections which actually doesn't exits. For more clarity let me say that there is no actual connection between soil layers and re-bars but automatic connections built them which I deleted. Sir may I know y this happens so?Is there any fault in my modelling?But while giving manual connections I got the problem solved ie no overlapping was found but further confusions arised while assinging the CONTACT & TARGET regions.And the problems of inactive contacts,geometric penetration etc stood up in the contact tool.Can I choose multiple bodies to single or vice versa for connections?The stirrups are given through the concerte by cutting the material,how will I assign the connection b/w these two(stirrups & concrete) ...solid face of stirrups to solid face of concrete OR solid face of stirrups to body selection of concrete?While carrying out automatic connections I have noted that the connection is given such that 1 curved face of stirrup is targeted to 6 curved faces of concrete( the 6 holes made for pouring rebars).Is this right?How can I reduce the number of contact elements in the model?The default element size given as 0.9m. Can assigning 1.2m/1.5m can give approx results...or may it b too rough?While increasing the elemnt size to 1.2m an unconverged solution is obtained.The reason for termination is error in element formulation,how can i resolve these issues?


      Can the mesh be given finer at the places where I concentrate my results and coarser at other parts?how much can i increase the size?How can i do that?Can the reduction of load will help me?Some contacts are having high penetration and is shown to b inactive here...what can i do to resolve these issues.


       

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