/prep7
/TITLE,butt welding
et,1,13,4
et,2,13,4 ! 2nd type just for convenience
mptemp,1,100,1000,1500,2400,2700,3000
mpdata,ex,1,1,30e6,30e6,24E6,10e6,5e6,.2e6
mpdata,ex,2,1,30e6,30e6,24E6,10e6,5e6,.2e6
mpdata,ex,3,1,30e6,30e6,24E6,10e6,5e6,.2e6
tb,bkin,1,5 !mat 1, 5 temps
tbtemp,100
tbdata,1,36000,1e6 !yield stress / tangent modulus
tbtemp,1000
tbdata,1,36000,1e6
tbtemp,2400
tbdata,1,5000,1e6
tbtemp,2700
tbdata,1,1000,.5e6
tbtemb,3000
tbdata,1,500,.1e6
tbcopy,bkin,1,2
tbcopy,bkin,1,3
mp,kxx,1,.246e-3
mp,kxx,2,.246e-3
mp,kxx,3,.246e-3
mp,c,1,.2
mp,c,2,.2
mp,c,3,0.2
mp,dens,1,0.2833
mp,dens,2,0.2833
mp,dens,3,0.2833
mp,alpx,1,6.5e-6
mp,alpx,2,6.5e-6
mp,alpx,3,6.5e-6
SAVE
mp,murx,1,1 !to avoid warning
mp,murx,2,1 !to avoid warning
mp,murx,3,1 !to avoid warning
mp,reft,1,3000 !new rev5 capability - mat depend ref temp
mp,reft,2,1550
mp,reft,3,100
n,1
n,2,,.39
n,3,,.41
n,4,,.79
n,5,,.81
n,6,,1.2
n,7,.2
n,8,.1,.39
n,9,.1,.41
n,10,.1,0.79
n,11,.1,.81
n,12,.2,1.2
n,13,.22
n,14,.12,.4
n,15,.12,.8
n,16,.22,1.2
n,17,.6
n,18,.6,.4
n,19,.6,.8
n,20,.6,1.2
ngen,10,4,17,20,1,.6
type,1
mat,1
e,1,7,8,2 !weld and interface elems
SAVE
egen,5,1,-1
mat,2
e,7,13,14,8
e,8,14,9,9
e,9,14,15,10
e,10,15,11,11
e,11,15,16,12
type,2 !base metal elements
mat,3
e,13,17,18,14
egen,3,1,-1
egen,10,4,-3
d,1,ux,0 !centerline og weld
d,2,ux,0
d,5,ux,0
d,6,ux,0
nsel,s,loc,x,6 !support other end
SAVE
nsel,r,loc,y,0
d,all,uy,0
nsel,all
d,all,az !to avoid pivot in az
finish
/solution
nropt,full !"global" solution specifications
autots,on
cnvtol,heat !default convergence criterion
!!occur warning ybh
cnvtol,f
outpr,basic,last
outres,,last
kbc,1
nsubst,1
ealive,all
esel,s,,,1,5,2 !weld elements
nsle !node of weld elements
d,all,temp,3000 ! set initial temperature
nsel,inve
d,all,temp,100 !initial base metal temperature
nsel,all
esel,all
time,1
solve !all elements alive in 1st load step
--------------------- [원본 메세지] ---------------------
바이메탈 아시져...
그거 해석 하려고 하는데여... 외력은 전혀 없구여...
열팽창 계수는 그럭저럭 입력했는데...
온도조건을 어떻게 주어야 하는지 도저히 모르겠습니다..
완전 독학 중이라.... ㅜ_ㅜ...
물성치 입력하는창에 레퍼런스 온도입력창이 있더라구여...
아마도 초기 온도를 설정해주는듯한데..
그럼 마지막 온도는 어떻게 입력해야 하나여...
도와주세여..... 급하거등여....
고수님들.... 꼭좀 부탁드릴께여... 그럼 이만..