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我最近用ansys模拟碳纤维布加固钢筋混凝土梁，不过好像有点问题，计算结束以后，梁好像没有变形呀！挠度始终是零，帮忙看看！谢谢了！; P0 b5 g! i5 ]
!碳纤维布加固钢筋混凝土梁有限元分析
" j. j: T. u3 k7 j% L3 G, r/com,structural
3 ?& h1 q7 t6 @& f" U6 Y1 ]7 S! T/prep7
0 c$ J% \1 e# \- t. Z5 x8 n!定义单元类型2 ?3 o; u: D# `& \% e$ A: u7 u2 [& X4 W
et,1,link8
+ S; ~8 j8 v$ f, a* I* ]7 ?1 cet,2,solid65
7 Z% p+ w) ]4 K$ qet,3,plane42' K; _, u% o. j0 F9 B3 C! ?0 K
et,4,shell41
6 e' z! R" R& E; C: j
+ G6 p& k; ^* T& j!定义实常数' F# \3 O! \2 |9 a
r,1,28.3 !箍筋和受压钢筋, S+ n# l$ M3 n" k
r,2,113.1 !受拉钢筋
+ V6 c# Q3 J9 N* B7 v2 I! lr,3 !混凝土/ z) D# K% w p. k4 w" h
r,4,0.12 !碳纤维布! O. m7 Q* D, y( E& K
* d, H& d' l! c, Y/ d5 D& J1 O
!定义材料属性- O! C5 U; X) s3 J6 S2 Z
mp,ex,1,2e5 !箍筋和受压钢筋& `* C. {2 |) e2 ^ [7 A( Y. h
mp,prxy,1,0.259 d& V3 ~+ P: W7 t: Z3 w
tb,bkin,1,1,2,13 C9 v; l5 L4 O; K; G
tbdata,,200
0 n& h5 O. O6 S
1 j( P" f. U' `* smp,ex,2,2e5 !受拉钢筋
/ I, x+ b* p1 _mp,prxy,2,0.3
0 ]5 y9 z9 U; M; d, u( |tb,bkin,2,1,2,1* W2 d/ T( M" A, B/ R; M4 L2 Z4 X
tbdata,,3007 s( C1 a2 U5 N* Y+ ~
# R, ^5 \& Q& T! v+ w. s8 R `
mp,ex,3,30000 !混凝土" e) K' t( V, Z& r, w
mp,prxy,3,0.2
+ H7 t2 }% N( P& u, `tb,conc,3,1,9
4 u* P) E' G! R) k5 L+ Wtbdata,,0.4,1,2.04,-1
& V; C! N/ B& I: ~! {- P( l* y7 c/ T# e
mp,ex,4,225000 !碳纤维布$ T! I ^: N9 Q8 z
mp,prxy,4,0
- {7 e5 S& z- ?tb,bkin,4,1,2,1
( ~% c" A+ J5 U. ~; Rtbdata,,4300+ }; s+ t' _6 @" U: s& d
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/pnum,elem,13 |- A9 C3 [ x1 F2 {$ w
+ L( V' g/ i: o! Y' Q" D, w1 r, {
!产生所有的节点
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; [' C, O3 x; V8 R" M3 b( Tn,6,100
0 r' q2 A% K3 ]* y- J4 Qfill,1,6
, r c. Q/ J. a$ n( K) Kngen,9,6,1,6,1,,25
; j8 K1 ^$ l1 Z) m+ e* p5 Mngen,33,1000,1,54,1,,,-254 E5 r! b! ]$ R$ ~* x. A
/view,1,1,1,1: W3 c% D7 p% @( u" @
nplot
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5 [& s& ~/ L! s! f2 c6 d: C!箍筋和受压钢筋单元建立
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mat,17 O! n/ Q4 f1 Q K
*do,ii,8,10,1
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4 o- Q a# n- ?2 [* X*enddo. g+ _% @" W5 ?9 i% u* f R
*do,ii,11,41,61 ]: Q3 P: Q$ n; v1 `5 p& F" b; e
e,ii,ii+6+ e7 L5 [6 }5 j% u# O) C4 p7 j$ W) J
*enddo, d) @- e: Y. c* q$ L/ ~3 P
*do,ii,44,46,1# d; Y% [1 l5 b0 K
e,ii,ii+1
9 T3 o; A( ?4 u! ?# `+ y# X- o*enddo
$ t* {9 c/ t4 M% ?; n1 a3 _1 A6 n*do,ii,8,38,6
* m# a' x6 L, W( o: H- r) l e,ii,ii+61 Y; _8 F6 ?( ?: A& Z
*enddo
* M" R& l) D* R$ oegen,6,4000,1,18,1
" I- p: Y+ D: t0 h!受压钢筋* }6 r7 X/ P# @6 ^: M( p+ e) _" P5 }
*do,ii,44,19044,1000
% ]' w+ w. z) z! b/ S Y% z. ^# x e,ii,ii+1000
1 R u# z, ^8 V p% ]* j3 Y b, X*enddo; H. y7 c+ W% u7 S* z* J& ~5 c& s
*do,ii,47,19047,1000
* @' b" o% _/ y, C9 d* i& n. E/ { e,ii,ii+1000
" I7 l3 s) |$ E! [1 `*enddo
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!纵向受拉钢筋单元建立3 y/ h: e# k$ U8 ~ c6 ]! [
type,1: _8 B0 j; K, v2 ^# L, c0 L
real,2
0 N) W R* B4 D5 J( K. _mat,2: G X) K2 r8 N) [
*do,ii,8,31008,1000
& @5 j9 |# C9 B3 L e,ii,ii+1000! l. j, X6 i0 }; J1 }1 _. W4 F. h
*enddo2 Y; q4 Q/ a# d o$ O- \2 t, T) t4 ^
*do,ii,11,31011,1000
( i; o; W2 V" R8 f9 [ e,ii,ii+1000
! C X2 b4 B) ?% |3 D*enddo
8 }; T9 ]( G3 w7 h* D!碳纤维布单元的建立
8 C$ v& c1 k& ^" \type,46 K. O6 W( [9 `
real,4
# i1 W" B5 o3 G: r; @- L6 Bmat,4
+ }* A3 A1 B3 O1 c3 w*do,ii,1,5,1$ E V8 i, V5 [/ m9 _
*do,jj,ii,31000+ii,10000 F3 t- Z- ?( w% p# d
e,jj,jj+1,jj+10000 b( L* D" w5 x+ ?7 G; F
e,jj+1,jj+1000,jj+1000+10 c9 I* Z7 C# s" n7 y
*enddo
5 E" e. {; Q9 m5 ]- ]2 f*enddo
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) u# Q, ^* z5 D8 [- _5 Y/view,1,1,1,1+ r7 F4 M7 [8 e$ d9 ]/ w
/pnum,elem,07 L. R$ N6 G6 e* p
/pnum,node,0
' W8 f+ ?$ E1 i1 i$ \: y+ ~/eshape,10 P- U( l# I2 k# x( _* D3 v
eplot
' |! U7 } b) ^& z' a" t
6 R2 l6 `) z$ w!混凝土单元的建立
4 A5 B2 K6 {5 P$ G1 Ok,18 E x* X# f& Y% P# @6 X
k,2,100
1 D' S1 `7 h9 m7 C' y* n: T; ]9 wk,3,100,2006 y5 s7 R( l% k( {0 @5 Q
k,4,,200
) V0 U/ K [6 za,1,2,3,41 v$ V2 b) J% u$ A# @4 w
+ g, A; S) b( G$ ]" ^
lsel,s,loc,y,0! d, o( V* d0 Q2 c x4 j/ z
lsel,a,loc,y,2000 P8 e* Z7 N& U9 L9 z$ B; y
lesize,all,,,5
% L5 Z8 c. r3 K V: m# Ulsel,all% |- V3 @; Y: s- ^
lsel,s,loc,x,0( M7 Z- b& X9 L$ I& j* K
lsel,a,loc,x,100
8 O5 d2 ?( e/ T/ Y3 L1 {) slesize,all,,,8
; f7 n) w* J/ W ]type,3) H7 v7 n0 z1 D$ ^. }7 c
amesh,all- F0 z4 Q5 U5 {; t% C+ ]$ Q
]/ J% k# i# j0 P) l' {" vtype,2! \- w, ~% T, p- j
real,3
0 i. J0 g5 p# g; Q' nmat,3
( n; |) y0 j0 Y) @7 d @3 M rextopt,esize,32
8 R2 {% G& T) K" h" ^8 S( A! b* eextopt,aclear,1$ _# k: P/ y" C4 F: Z
vext,all,,,,,-800
( c+ N( ?" ]. g# u* p0 S3 J& o% w. R' c4 P( D" a: V: r( q5 L/ Q
/pnum,mat,1+ `3 J7 Q4 H% V+ |
/pnum,node,0
( c1 s& `" P8 l0 |/pnum,elem,0) |+ y( m* A$ j# j1 S& O
/view,1,1,1,1/ N/ [# g8 Z5 f: l5 s$ {) @. i
eplot
# c1 j. u5 _' d! T4 z( |, Iallsel
2 S* r) w" e# A0 A- X6 b# [ Fnummrg,all& h6 m: @6 H$ x% j
numcmp,all3 Q6 \3 F7 y% }6 e2 n
eplot: V+ O$ M. ^$ `7 r; S5 _
: C& L ^! Q: L2 ] c/solu
& w' ?! Y. q6 onsel,s,loc,y,0
) x+ ~5 Z& E9 ]8 j5 T1 S; Znsel,r,loc,z,0
+ X8 f- S) ] w% g3 c! ?% td,all,uy: O1 _; y( y& o) A- B6 n
2 {1 C p' H$ t' n
asel,s,loc,z,-800
$ N, h2 a1 O+ U2 H1 j4 A$ s9 nda,all,symm
7 ?% ?7 G6 q, T4 }( @" V/ {/ J6 e. ]+ I
allsel
$ m2 a$ c' \( i7 w) I! L1 Fgplot0 O, |' s) a& p6 h) i; S# a
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nsel,s,node,,1129,1129,1
; Q+ f2 b4 c/ t+ H6 Nnsel,a,node,,1134,1134,1' k$ u, t& T/ j/ }: s: Z2 c, l6 t' i
f,all,fy,-1000, P$ T1 j* _8 J* k) l: |
nsel,s,node,,1130,1133,14 a$ q% H! S1 o4 \7 k- d- [2 f
f,all,fy,-2000, H! }3 ]3 F) r6 {9 O
allsel
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$ A- z, c/ X; Ynlgeom,on- `8 L9 q. X: T
nsubst,200
5 Q' y# w# ], t5 U8 Goutres,all,all$ i7 |; G* D" m. w
neqit,50# b" G; x8 B- B: ]: Z# q/ r
pred,on
, q v N2 E& _9 i( ]!ncnv,2
* ]! i! |. j; l2 G( Hcnvtol,f,,0.02,2,0.5
8 Z# G' {' `0 D x- q3 J
8 G1 E- z* U! esolve
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6 F( P! ^' y: G# S' Z* c, ?finish |
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