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CFVR3705 - Initial stresses on 2D Model

Initial stresses on a 2D Model with irregular mesh.

A 2D model with an irregular mesh is used to analyze the results obtained when applying initial stresses and gravity.

Element types used in the model: PLANE182

Needed CivilFEM Modules:
Geotechnical Module
Bridges and Civil Non Linearities Module
Advanced Prestressed Concrete Module

The example cannot be launched on an educational license.
KEYWORDS
Geotechnics

Model Statistics
Number of elements 4750
Number of nodes 2476
Number of civil materials 1
Number of cross sections 0
Number of shell vertices 0

Log file: CFVR3705.DAT


 FINISH
 ~CFCLEAR,,1
 ~CFACTIV,GETC,Y
 *AFUN,DEG

 NomFile='CFVR3705'
 /TITLE, %NomFile%, Initial stresses. 2D Model.
! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! Parameters
 teta=30.0
 length=70
 height=30
 g=9.81

! CivilFEM SETUP
 ~UNITS,SI
 ~CODESEL,EC3-92,EC2-91,,,EC8-94

 /PREP7
! 1. Element types
! --------------------------------------------------
ET,1,PLANE182,,,2  ! Plain strain

! 2. Materials
! --------------------------------------------------
~CFMP,1,LIB,SOIL,,GC
~CFMP,1,DatGen,GAM,,10500

! 3.Modeling
! --------------------------------------------------
wpro,teta 
CSWPLA,11,0,1,1, 
BLC5,,,length,height

! 4.Meshing
! -------------------------------------------------
R,1 
MSHAPE,1,2D 
MSHKEY,0
ESIZE,1
AMESH,ALL
NROTAT,ALL 
NSEL,S,LOC,X,-length/2
NSEL,A,LOC,X,length/2 
D,ALL,UX
ALLSEL     
NSEL,S,LOC,Y,-height/2 
D,ALL,ALL
ALLSEL 

! 4. Solution
! --------------------------------------------------
/SOLU
~TIS,cfvr3705,ist,-Y,1 
INISTATE,READ,cfvr3705,ist
ACEL,g*SIN(-teta),g*COS(-teta) 
NROPT,FULL
SOLVE

! 5. Delete created files.
! --------------------------------------------------
 /DELETE,cfvr3705,ist

! -------------------------------------------------------------------------------------
! DATA CHECK
! -------------------------------------------------------------------------------------
! Data comparison number
 Ts=4
 NComp= Ts*3
 NComp_ch = 0

! Matrix dim.
 *DIM,LABEL,CHAR,Ncomp,1
 *DIM,LABEL_CH,CHAR,Ncomp_ch,1
 *DIM,VALUE,,Ncomp,3
 *DIM,VALUE_CH,CHAR,Ncomp_ch,3
 *DIM,TOLER,,Ncomp,2

! Labels
! -------------------------------------------------------------------------------------
 LABEL( 1)  = 'SX_1'
 LABEL( 2)  = 'SY_1'
 LABEL( 3)  = 'SZ_1'
 LABEL( 4)  = 'SXY_1'
 LABEL( 5)  = 'SX_2'
 LABEL( 6)  = 'SY_2'
 LABEL( 7)  = 'SZ_2'
 LABEL( 8)  = 'SXY_2'
 LABEL( 9)  = 'SX_3'
 LABEL( 10)  = 'SY_3'
 LABEL( 11)  = 'SZ_3'
 LABEL( 12)  = 'SXY_3'

! Obtained data 
! --------------
*DIM,Ele1,ARRAY,Ts 
*DIM,Ele2,ARRAY,Ts 
*DIM,Ele3,ARRAY,Ts

! + -------------Stresses obtained by CFVR3705.TIS file ------------- + !
!          - Sx -           - Sy -           - Sz -           - Sxy -        
 Ele1(1)= -93675.7    ,    -131146.    ,    -74940.5    ,     32450.2       
 Ele2(1)= -153298.    ,    -214617.    ,    -122639.    ,     53104.0         
 Ele3(1)= -43578.7    ,    -61010.2    ,    -34863.0    ,     15096.1      
! + ----------------------------------------------------------------- + !
 
 cont1=1	$	cont2=1
 *DO,II,1,NComp
	VALUE( II,1) = Ele%cont1%(cont2)
	cont2=cont2+1
	*IF,cont2,EQ,Ts+1,THEN
		cont2=1
		cont1=cont1+1
	*ENDIF
*ENDDO
	 
! Correct data 
! -------------
*DIM,NumElem,ARRAY,3
NumElem(1)=163,2064,2133
*DIM,Si,CHAR,Ts
Si(1)='X','Y','Z','XY'
cont3=1 
*DO,II,1,3
	ESEL,S,ELEM,,NumElem(II)
	NSLE,S,1
	*GET,MyNode,NODE,,NUM,MAX
	*DO,JJ,1,Ts
		*GET,VALUE(cont3,2),NODE, MyNode,S,%Si(JJ)%
		cont3=cont3+1
	*ENDDO
*ENDDO

! Warning and error tolerances 

   TOLER(1,1)  = .5E3	$	TOLER(1,2)  = .5E3
   TOLER(2,1)  = .5E4	$	TOLER(2,2)  = .5E4
   TOLER(3,1)  = .5E3	$	TOLER(3,2)  = .5E3
   TOLER(4,1)  = .5E3	$	TOLER(4,2)  = .5E3   
   TOLER(5,1)  = .5E4	$	TOLER(5,2)  = .5E4
   TOLER(6,1)  = .5E4	$	TOLER(6,2)  = .5E4
   TOLER(7,1)  = .5E4	$	TOLER(7,2)  = .5E4
   TOLER(8,1)  = .5E3	$	TOLER(8,2)  = .5E3
   TOLER(9,1)  = .5E3	$	TOLER(9,2)  = .5E3   
   TOLER(10,1) = .5E3	$	TOLER(10,2) = .5E3
   TOLER(11,1) = .5E3	$	TOLER(11,2) = .5E3   
   TOLER(12,1) = .5E3	$	TOLER(12,2) = .5E3

! -------------------------------------------------------------------------------------
! Results comparison
! -------------------------------------------------------------------------------------
  COMPARA.MAC

Results

LabelTargetCivilFEMRatioTolerance
SX_1 -93676 -936991.000 500
SY_1-1.3115e+005-1.3118e+0051.000 5000
SZ_1 -74941 -749581.000 500
SXY_1 32450 324611.000 500
SX_2-1.533e+005-1.5335e+0051.000 5000
SY_2-2.1462e+005-2.147e+0051.000 5000
SZ_2-1.2264e+005-1.2268e+0051.000 5000
SXY_2 53104 531271.000 500
SX_3 -43579 -435851.000 500
SY_3 -61010 -610211.000 500
SZ_3 -34863 -348681.000 500
SXY_3 15096 151001.000 500


Contains proprietary and confidential information of Ingeciber, S.A.