[問題] ANSYS做奈米壓痕數值模擬壓頭問題
我現在在用ANSYS做奈米壓痕的模擬
這是程式碼
! Units: (mu) m- (mu) N- GPa
FINISH
/CLEAR
/TITLE, nano-indentation
! Geometric Parameters
Theta =70.3
a =5
b =a*TAN (theta)
c = 30
d = 35
e = 5
F = 30
YOUNG1 = 1140
YOUNG2 = 150
YOUNG3 = 127
POSSION1 = 0.07
POSSION2 = 0.25
POSSION3 = 0.278
FKN = 0.5
FTOLN = 0.1
/PREP7
! Element Type
ET, 1, PLANE42
ET, 2, TARGE169
ET, 3, CONTA171
! Ax symmetric
KEYOPT, 1, 3, 1
! Contact Type
KEYOPT, 3, 4, 2
! Real Constant
R, 1, , , FKN, FTOLN, , ,
! Material Properties
MP, EX, 1, YOUNG1
MP, EX, 2, YOUNG2
MP, EX, 3, YOUNG3
MP, PRXY, 1, POSSION1
MP, PRXY, 2, POSSION2
MP, PRXY, 3, POSSION3
TB, BISO,2,1,2
TBTEMP,0
TBDATA,,5,50,,,,
! Modeling
K, 1, 0, 0, 0,
K, 2, b, a, 0,
K, 3, 0, a, 0,
A, 1, 2, 3,
RECTNG, 0, c, 0, -d
wprota,,,90
asbw,all
wprota,,,-90
wpoffs,,-5,
wprota,,90
asbw,all
wprota,,-90
aglue,all
asel,s,loc,y,0,5
aatt,1,,1
asel,s,loc,y,0,-5
aatt,2,,1
asel,s,loc,y,-5,-35
aatt,3,,1
allsel
LESIZE,ALL,1,,,,,,,1
TYPE,1
MSHKEY,1
AMESH,ALL
! Target-Contact Generate
TYPE, 2
REAL, 1
LSEL, S, , , 1
NSLL, S, 1
ESURF, , ,
ALLSEL, ALL
TYPE, 3
REAL, 1
LSEL, S, , , 5
NSLL, S, 1
ESURF, , ,
ALLSEL, ALL
! Boundary Conditions
DL, 4, , ALL, 0
DL, 3, , UX, 0
DL, 7, , UX, 0
DL, 8, , UX, 0
/SOLU
FK,1,FY,-F
SOLVE
FINISH
第一個問題
我想把負載從壓頭尖端改至壓頭上方
而不造成壓頭本身的變形
只對材料產生變形
因為我如果直接更改負載至上方
這樣壓頭本身會出現一個變形
而第二個問題
用我的程式碼跑出來後
後處理的圖都沒辦法看到完整的壓頭
而是有陷進材料裡
我想做出這種圖
http://ppt.cc/yYNB
可是做出來是這樣
http://ppt.cc/ixJI
請問是哪裡出了問題
謝謝
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