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[ÇóÖú] ÇóÖú ÓÃANSYS mechanical Ä£Äâ2D three-point bendingÈýµãÍäÇúµÄÁ¦

Çë½Ì ANSYS mechanicalÄ£Äâ2DµÄthree-point bending£¬ ʵÑéÉ趨µÄÎ»ÒÆÎª11mm
Ä¿µÄ£º µÃµ½force-displacement curveºÍʵÑé¶Ô±È
ÎÊÌ⣺ ³ÌÐòÅܵÄûɶÎÊÌ⣬postprocessing ÉÏËÀ»îµÃ²»³öÕýÈ·µÄÖ§×ù·´Á¦

×ö·¨£º
1.     Mesh Á˼ÓÔØµÄÉÏÂÖ£¨moving roller£©,Ö§³Å(fixed roller), Áº
2.     ¶¨ÒåÁËcontact.
3.     Àϰå˵֧×ù·´Á¦Ó¦¸ÃÈ¡ Ö§³Åϱ߽çˮƽֱÏßÉÏËùÓÐnodes»òÕßelements µÄfsum£¬Èç¹ûÑ¡ÍäÇúÏߣ¨contact ±ß½çµÄnodes£©²»×¼¡£µ«ÎÒÈç¹ûÑ¡ÁËËùÓÐϱ߽çnodes, fsum=0¡£¼´±ã²»ÌýÀϰåµÄÑ¡ÁËcontacted lineÉϵÄcontact nodes ¼ÆËãÁ¦£¬Á¦Ëã³öÀ´²Å 2~3N, ºÍʵÑéÖµ²éÁË100¶à±¶¡£ ÎÊÌâÊÇÎҵIJÄÁÏÊôÐÔÍêÈ«ÕýÈ·¡£ Èç¹û˵ѡÁËmoving roller ˮƽ±ß½çµÄfsum, ֵΪ E-10 Ò²²»¶Ô¡£ µ·¹ÄÁËÒ»ÖÜÁ˶¼Ã»½â¾ö£¬¿ÒÇë°ïÖú£¡¸½¼þΪ model

Solution and postprocessingµÄ³ÌÐò¸½ÉÏ£¬ Çó°ïÖú£º
!----Solution----   
FINISH  
/SOL
antype,static   
cnvtol,f,,  
outpr,basic,all  ! output option
outres,all,20    ! save results for every 20 substeps   
DL,8,,UX,0  ! at symmetric plane the x displacement is 0
DL,9,,UX,0  
DL,1,,ALL,0  !fixed roller
DL,2,,ALL,0
DL,3,,ALL,0
DL,9,,UY,-11  !moving roller: loading, -11mm
alls
time,20,,! total number of time
autots,0
nsubst,1400,,,1  ! total number of substeps
kbc,0   
lswrite,01,
lssolve,1,1,1    ! solve


! reaction force
FINISH  
/POST1  
*dim,rf,array,70   ! Use the *DIM command to define a table

FLST,5,81,1,ORDE,4   !select all the elements at the bottom line of the fixed roller
FITEM,5,1   
FITEM,5,-42
FITEM,5,82  
FITEM,5,-120
NSEL,S, , ,P51X

*do,i,1,70  
set,,,,,,,i
fsum              ! Sums the nodal force on the right fixed roller, one half of the totalforce
*get,rf(i),fsum,0,item,fy   
*enddo  
*status,rf
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  • ¸½¼þ 1 : model.docx
  • 2016-06-29 00:54:48, 385.8 K

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