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ÇóÖú ÓÃANSYS mechanical Ä£Äâ2D three-point bendingÈýµãÍäÇúµÄÁ¦
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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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