ISTRESS and TRANS126 element
ISTRESS and TRANS126 element
(OP)
Hi
Is there any posibility to perform a simulation with trans128 element and apply initial stress to other element (like shell181)? Ansys v10 gives an error that istress command can be used only for specific elements (shell181 included). However I apply a stres only on shell element, not on trans.
Here is the script:
FINISH
/CLEAR
/FILNAME,mem50shell,0
/CWD,'C:\temp\ANSYS'
!* membrane
Lm=300
Wm=300
Tm=5 !* Epaisseur de la membrane 3e-6 / 1e-6
dif=5
h=-1
V=0
!* membrane_division
b=20
/PREP7
ET,1,SHELL181
R,1,Tm
ET,2,TRANS126
MP,EX,1,130e+9*1e-6
MP,DENS,1,2330*1e-18
MP,PRXY,1,0.278
WPOFFS,0,0,dif
RECTNG,0,Lm,0,Wm
WPOFFS,0,0,-dif
LESIZE,ALL,,,b,-5
MSHAPE,0,2D
MSHKEY,1
AMESH,ALL
!* transducer
NSEL,S,LOC,Z,dif
CM,tr,NODE
ALLSEL,ALL
EMTGEN,'tr','EMTELM','EMTPNO','UZ',h,0,1E-02,0.8854E-05
NSEL,S,LOC,Z,dif+h
D,ALL,,0,,,,UZ
D,ALL,VOLT,v
CMSEL,S,TR
D,ALL,VOLT,0
ALLSEL,ALL
!* applying loads and BC
NSEL,S,LOC,X,0
NSEL,A,LOC,X,Lm
NSEL,A,LOC,Y,0
NSEL,A,LOC,Y,Wm
D,ALL,UX,0
D,ALL,UY,0
D,ALL,UZ,0
D,ALL,ROTX,0
D,ALL,ROTY,0
D,ALL,ROTZ,0
ALLSEL,ALL
SFA,1,1,pres,-101300*1E-6
FINISH
/SOLU
PSTRES,ON
istress,-20e+6*1e-6,-20e+6*1e-6,,,,,1
ANTYPE,STATIC
NLGEOM,ON
SOLVE
FINISH
save,mem50shell,db
fini
Is there any posibility to perform a simulation with trans128 element and apply initial stress to other element (like shell181)? Ansys v10 gives an error that istress command can be used only for specific elements (shell181 included). However I apply a stres only on shell element, not on trans.
Here is the script:
FINISH
/CLEAR
/FILNAME,mem50shell,0
/CWD,'C:\temp\ANSYS'
!* membrane
Lm=300
Wm=300
Tm=5 !* Epaisseur de la membrane 3e-6 / 1e-6
dif=5
h=-1
V=0
!* membrane_division
b=20
/PREP7
ET,1,SHELL181
R,1,Tm
ET,2,TRANS126
MP,EX,1,130e+9*1e-6
MP,DENS,1,2330*1e-18
MP,PRXY,1,0.278
WPOFFS,0,0,dif
RECTNG,0,Lm,0,Wm
WPOFFS,0,0,-dif
LESIZE,ALL,,,b,-5
MSHAPE,0,2D
MSHKEY,1
AMESH,ALL
!* transducer
NSEL,S,LOC,Z,dif
CM,tr,NODE
ALLSEL,ALL
EMTGEN,'tr','EMTELM','EMTPNO','UZ',h,0,1E-02,0.8854E-05
NSEL,S,LOC,Z,dif+h
D,ALL,,0,,,,UZ
D,ALL,VOLT,v
CMSEL,S,TR
D,ALL,VOLT,0
ALLSEL,ALL
!* applying loads and BC
NSEL,S,LOC,X,0
NSEL,A,LOC,X,Lm
NSEL,A,LOC,Y,0
NSEL,A,LOC,Y,Wm
D,ALL,UX,0
D,ALL,UY,0
D,ALL,UZ,0
D,ALL,ROTX,0
D,ALL,ROTY,0
D,ALL,ROTZ,0
ALLSEL,ALL
SFA,1,1,pres,-101300*1E-6
FINISH
/SOLU
PSTRES,ON
istress,-20e+6*1e-6,-20e+6*1e-6,,,,,1
ANTYPE,STATIC
NLGEOM,ON
SOLVE
FINISH
save,mem50shell,db
fini





RE: ISTRESS and TRANS126 element
/SOLU
PSTRES,ON
esel,s,ename,,181 ! select just the SHELL181 elements
istress,-20e+6*1e-6,-20e+6*1e-6,,,,,1
allsel ! reselect everything
ANTYPE,STATIC
NLGEOM,ON
SOLVE
FINISH
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RE: ISTRESS and TRANS126 element