Learning Forum

[Wenlong]

Hi Matteo,

I forgot to mention that I modified your input a little bit to make sure the nodes are constrained well. in my model I also applied DT. Please find it below. I don't think it is due to version change since these are very conventional functions. 

Regards,

Wenlong

/CLEAR, START, NEW

 

*set,length,0.5

*set,thick,0.08

*set,radius,0.036

*set,width,0.5

 

 

/prep7

 

 

ET,1,LINK180

 

mp,ex,1,366    

mp,prxy,1,0.33         ! Unkonwn

mp,alpx,1,0.000120     ! [1/°C] 

 

TREF,30

 

SECTYPE,1,LINK,CSOLID

SECDATA,0.0041         ! area -> r = 3.6 cm ca. 

SECCONTROL,,1          ! TENSION ONLY

 

 

 

ET,2,BEAM188

mp,ex,2,10e8

mp,prxy,2,0.33

SECTYPE,2,BEAM,rect

SECDATA,0.05,0.08

 

 

K,2,0,0,-width

K,3,0,0,0

K,4,length,0,0

K,6,length,0,-width

 

 

L,2,3   ! 1 First Beam

L,3,4   ! 2 Thermal link

L,4,6   ! 3 Second Beam

 

 

TYPE,1 

MAT,1

SECNUM,1

LSEL,s,LINE,,2

LESIZE,all,,,10

LMESH,all

ALLSEL,all

 

 

TYPE,2

MAT,2

SECNUM,2

LSEL,s,LINE,,1,3,2

LESIZE,all,,,4

LMESH,all

ALLSEL,all

 

 

!

---

!

! ---   SOLUTION   --- !

!

---

!

 

 

NLGEOM, ON

/SOLU

antype,static,new

 

! Constraint on base nodes

 

nsel,s,LOC,Z,-width

nsel,R,LOC,X,length

D,all,all,0

 

nsel,s,LOC,Z,-width

nsel,R,LOC,X,0

D,all,ux,0

D,all,uy,-0.05

D,all,uz,0

D,all,Rotx,0

D,all,Roty,0

D,all,Rotz,0

 

esel, s, etype, 1

bf,all,temp,50

 

outres,all,all

SOLVE

 

!

---

!

! ---     POST1    --- !

!

---

!

 

/POST1

allsel,all

/view, 1, -0.5, 0.395, 0.77

/eshape,1

plnsol,u,SUM