allsel before solve:

Gopinath Venkatesan — Mon, 29 Oct 2007 22:42:25 -0400

Hi kvdalmisli

Guess you might have figured out by now. Issue allsel before solve to include the nodes left out. It solves. As such I did not go through the program, so I don't know if the analysis is correct.

Vgn

Graduate Student

University of Oklahoma

I wrote a batch file for Crack growth model for ANSYS but when the soution is running,ANSYS terminate itself...Why?

kvdalmisli — Fri, 26 Oct 2007 10:14:58 -0400

Hello everybody,

I am searching precision of crack propogation in a bonded wafer double.I wrote a code but the problem is that when I want to solve it in ANSYS, the program is shutdown. I need help about it. Thanks for your helps...

Greetings

Volkan DALMISLI

P.S:The code is given below.

finish
/title,sphere wafer
/filname,sphere wafer
/clear,start

*CFOPEN,volkan,dat ! deletes the data file
*CFWRITE,releaserate ! table heading of the data file
*CFCLOS
/PNUM, volu, 1
/prep7

!***********************************Modell generation**************************
k,9,0,-50e2,-50 ! Creating keypoints
k,19,0,-50e2,0
k,29,0,-50e2,50
k,11,0,50e2,-50
k,21,0,50e2,0
k,31,0,50e2,50
k,10,-4999,0,-70
k,20,-4999,0,-20
k,22,-4999,0,20
k,30,-4999,0,70
k,55,4999,0,-50
k,56,4999,0,0
k,57,4999,0,50
k,6,100,-60e2,-100
!k,16,100,-50e2,0
k,26,100,-60e2,100
k,5,100,60e2,-100
!k,15,100,50e2,0
k,25,100,60e2,100

!******Creating Volumes at delamination region******

larc,31,29,30   !Drawing arc lines
larc,21,19,22
askin,1,2   !Creating Areas by skining
l,29,31    !Drawing lines
l,19,21
l,9,11

al,3,5,4,6   !Creating Areas by lines
al,5,1
al,6,2
va,1,2,3,4   !Creating top volume

larc,21,19,20
larc,9,11,10
askin,8,9

al,6,10,7,11
al,9,7
al,8,6
VA,5,6,7,8 !Creating bottom volume
!*********************************
!****Creating minor flat******
k,100,-4918,10e2,100 !Creating area for dividing minor flat
k,101,-4918,-10e2,100
k,102,-4918,10e2,-100
k,103,-4918,-10e2,-100
a,101,103,102,100

vsba,1,9,,,keep
vsba,2,9,,,
vdele,1,,,1
vdele,3,,,1
!*********************************
!********Creating crack front refinement area******
k,100,-100,60e2,100
k,101,-100,60e2,-100
k,102,-100,-60e2,-100
k,103,-100,-60e2,100
a,100,101,102,103 !Creating area for refine mesh around crack front (at delamiation region)

vsba,4,1,,,keep
vsba,5,1,,,
!*********************************
!******Creating rest area of the wafer*****
blc4,0,-50e2,50e2,100e2,50 !I need to create a block volume for brick meshing
blc4,0,-50e2,50e2,100e2,-50 !because Ansys gives error for other geometries
!*********************************
!********Creating crack front refinement area******
k,100,100,60e2,100 !Creating area for refine mesh around crack front (at bonded region)
k,101,100,60e2,-100
k,102,100,-60e2,-100
k,103,100,-60e2,100
a,100,101,102,103

vsba,5,35,,,keep
vsba,6,35,,,
!*********************************
vglue,5,7,8,9 !Gluing bondend volumes

!******************************************************************************
!***********************************element type*******************************
et,1,95              ! Elementtype: Solid95
!***********************************material properties************************
!***********************************Silicone***********************************
mp,ex,1,168919              ! Young's Modulus in [110] direction
                 ! 168,919 GPa, isotropic
mp,nuxy,1,0.064189             ! possions ratio
                  ! 0,064189, isotropic

!***********************************meshing************************************

vsel,all
vsel,s,,,2
vsel,a,,,4
vsel,a,,,10
vsel,a,,,11
ESIZE,500
mshape,0,3d
MSHKEY,1 ! Mapped Mesh
VMESH,ALL ! Meshing des Volumens

allsel
vsel,s,,,1
vsel,a,,,3
vsel,a,,,5
vsel,a,,,6
ESIZE,50
mshape,0,3d
MSHKEY,1 ! Mapped Mesh
VMESH,ALL ! Meshing des Volumens

finish

/solu

antype,static
da,28,all !Fixing back side of the wafer to a wall etc...
da,52,all !Fixing back side of the wafer to a wall etc...

nsel,all
nsel,s,loc,x,-4750,-4700 !At the top volume: Selecting a node line to present touching points of the razor blade
nsel,r,loc,y,50e2,-50e2
nsel,r,loc,z,0,22
f,all,fZ,1e-5 !Applying force to selecting nodes to present blade insertion

nsel,s,loc,x,-4750,-4700 !At the bottom volume: Selecting a node line to present touching points of the razor blade
nsel,r,loc,y,50e2,-50e2
nsel,r,loc,z,-22,0
f,all,fZ,-1e-5 !Applying force to selecting nodes to present blade insertion

solve

iMechanica - I wrote a batch file for Crack growth model for ANSYS but when the soution is running,ANSYS terminate itself...Why? - Comments

allsel before solve:

I wrote a batch file for Crack growth model for ANSYS but when the soution is running,ANSYS terminate itself...Why?