비선형 해석 발산에 대해

항우연에 근무하는 이종웅 입니다. 제가 판에 대해 탄소성을 해석을 통해서 잔류 변위를 구할려고 하는데요... 해석 중간중간에 소성스트레인의 증분이 기준인 15%를 초과해서 bisection을 하겠다라는 메세지가 나오다가 좀더 가서는 발산을 하더라구요.... 메쉬크기를 조절하고 비선형 옵션 조절도 하고 했는데 수렴이 어렵네요. 알루미늄 판의 크기는 600mm X 400 mm 정도이구요 변위하중으로 판의 중간에 100 mm정도를 가했는데 위의 발산은 변위하중을 너무 크게 적용시켜서 그런걸까요?.. input file을 첨부합니다. 바쁘시더라도 답변 부탁드립니다. fini /cle /COM,ANSYS RELEASE 8.0 UP20021010 15:54:36 12/27/2004 /input,start80,ans,'C:\Program Files\Ansys Inc\v80\ANSYS\apdl\',,,,,,,,,,,,,,,,1 /AUX15 IOPTN,IGES,NODEFEAT !* IOPTN,MERGE,YES IOPTN,SOLID,YES IOPTN,SMALL,YES IOPTN,GTOLER, DEFA IGESIN,'runout_isogrid','igs',' ' LPLOT t1=2.4 t2=10.3 /PREP7 et,1,45 !panel MP,EX,1,72400 MP,DENS,1,2822e-9 MP,NUXY,1,0.33 TBDE,MISO,1,,, TB,MISO,1,1,5,4 TBTEMP,0 TBPT,,0.006 ,372.33 TBPT,,0.01 ,393.01 TBPT,,0.02 ,427.49 TBPT,,0.03 ,444.73 TBPT,,0.04 ,455.07 !TBDE,MISO,1,,, !TB,MISO,1,1,5,4 !TBTEMP,0 !TBPT,,0.001 ,351.64 !TBPT,,0.004419,400.43 !TBPT,,0.01378,436.04 !TBPT,,0.032684,473.27 !TBPT,,0.04773,489.29 !foam !MP,EX,2,55.78 !MP,DENS,2,126e-9 !MP,NUXY,2,0.33 !MPTEMP,1,0 !!MPDE,MU,2 !MPDATA,MU,2,,0.3 !TBDE,MELA,2,,, !TB,MELA,2,1,4, !TBTEMP,0 !TBPT,,0.0017,0.193 !TBPT,,0.0126,0.695 !TBPT,,0.0326,1.197 !TBPT,,0.0455,1.39 k,1000,,,t1 k,1001,,,t2+t1 l,79,1000 l,1000,1001 FLST,2,4,4 FITEM,2,32 FITEM,2,46 FITEM,2,45 FITEM,2,31 AL,P51X FLST,2,4,4 FITEM,2,45 FITEM,2,47 FITEM,2,44 FITEM,2,19 AL,P51X FLST,2,4,4 FITEM,2,44 FITEM,2,48 FITEM,2,169 FITEM,2,30 AL,P51X FLST,2,4,4 FITEM,2,169 FITEM,2,164 FITEM,2,166 FITEM,2,165 AL,P51X FLST,2,4,4 FITEM,2,166 FITEM,2,138 FITEM,2,161 FITEM,2,139 AL,P51X FLST,2,4,4 FITEM,2,161 FITEM,2,154 FITEM,2,156 FITEM,2,155 AL,P51X FLST,2,4,4 FITEM,2,86 FITEM,2,31 FITEM,2,79 FITEM,2,180 AL,P51X FLST,2,4,4 FITEM,2,79 FITEM,2,19 FITEM,2,22 FITEM,2,54 AL,P51X FLST,2,4,4 FITEM,2,54 FITEM,2,30 FITEM,2,170 FITEM,2,55 AL,P51X FLST,2,4,4 FITEM,2,170 FITEM,2,165 FITEM,2,167 FITEM,2,162 AL,P51X FLST,2,4,4 FITEM,2,167 FITEM,2,139 FITEM,2,153 FITEM,2,137 AL,P51X FLST,2,4,4 FITEM,2,153 FITEM,2,155 FITEM,2,157 FITEM,2,181 AL,P51X FLST,2,4,4 FITEM,2,23 FITEM,2,22 FITEM,2,78 FITEM,2,52 AL,P51X FLST,2,4,4 FITEM,2,168 FITEM,2,132 FITEM,2,137 FITEM,2,160 AL,P51X FLST,2,3,4 FITEM,2,33 FITEM,2,20 FITEM,2,24 AL,P51X FLST,2,4,4 FITEM,2,21 FITEM,2,20 FITEM,2,80 FITEM,2,57 AL,P51X FLST,2,3,4 FITEM,2,21 FITEM,2,23 FITEM,2,26 AL,P51X FLST,2,4,4 FITEM,2,26 FITEM,2,27 FITEM,2,53 FITEM,2,58 AL,P51X FLST,2,3,4 FITEM,2,27 FITEM,2,172 FITEM,2,28 AL,P51X FLST,2,3,4 FITEM,2,172 FITEM,2,135 FITEM,2,134 AL,P51X FLST,2,4,4 FITEM,2,135 FITEM,2,136 FITEM,2,163 FITEM,2,151 AL,P51X FLST,2,3,4 FITEM,2,136 FITEM,2,132 FITEM,2,141 AL,P51X FLST,2,4,4 FITEM,2,141 FITEM,2,142 FITEM,2,159 FITEM,2,149 AL,P51X FLST,2,3,4 FITEM,2,142 FITEM,2,140 FITEM,2,144 AL,P51X FLST,2,4,4 FITEM,2,25 FITEM,2,24 FITEM,2,34 FITEM,2,56 AL,P51X FLST,2,4,4 FITEM,2,59 FITEM,2,28 FITEM,2,29 FITEM,2,173 AL,P51X FLST,2,4,4 FITEM,2,173 FITEM,2,133 FITEM,2,134 FITEM,2,152 AL,P51X FLST,2,4,4 FITEM,2,143 FITEM,2,144 FITEM,2,150 FITEM,2,145 AL,P51X FLST,2,3,4 FITEM,2,35 FITEM,2,25 FITEM,2,1 AL,P51X FLST,2,4,4 FITEM,2,1 FITEM,2,3 FITEM,2,61 FITEM,2,81 AL,P51X FLST,2,3,4 FITEM,2,3 FITEM,2,18 FITEM,2,8 AL,P51X FLST,2,4,4 FITEM,2,18 FITEM,2,2 FITEM,2,60 FITEM,2,49 AL,P51X FLST,2,3,4 FITEM,2,174 FITEM,2,29 FITEM,2,2 AL,P51X FLST,2,3,4 FITEM,2,174 FITEM,2,133 FITEM,2,87 AL,P51X FLST,2,4,4 FITEM,2,91 FITEM,2,87 FITEM,2,148 FITEM,2,129 AL,P51X FLST,2,3,4 FITEM,2,91 FITEM,2,182 FITEM,2,89 AL,P51X FLST,2,4,4 FITEM,2,90 FITEM,2,89 FITEM,2,147 FITEM,2,124 AL,P51X FLST,2,3,4 FITEM,2,88 FITEM,2,143 FITEM,2,90 AL,P51X FLST,2,4,4 FITEM,2,9 FITEM,2,8 FITEM,2,82 FITEM,2,51 AL,P51X FLST,2,4,4 FITEM,2,131 FITEM,2,183 FITEM,2,182 FITEM,2,125 AL,P51X FLST,2,3,4 FITEM,2,36 FITEM,2,4 FITEM,2,10 AL,P51X FLST,2,4,4 FITEM,2,4 FITEM,2,5 FITEM,2,83 FITEM,2,63 AL,P51X FLST,2,3,4 FITEM,2,5 FITEM,2,13 FITEM,2,9 AL,P51X FLST,2,4,4 FITEM,2,14 FITEM,2,13 FITEM,2,50 FITEM,2,64 AL,P51X FLST,2,3,4 FITEM,2,14 FITEM,2,176 FITEM,2,16 AL,P51X FLST,2,3,4 FITEM,2,176 FITEM,2,92 FITEM,2,96 AL,P51X FLST,2,4,4 FITEM,2,98 FITEM,2,92 FITEM,2,130 FITEM,2,121 AL,P51X FLST,2,3,4 FITEM,2,98 FITEM,2,183 FITEM,2,100 AL,P51X FLST,2,4,4 FITEM,2,101 FITEM,2,100 FITEM,2,123 FITEM,2,120 AL,P51X FLST,2,3,4 FITEM,2,101 FITEM,2,99 FITEM,2,103 AL,P51X FLST,2,4,4 FITEM,2,11 FITEM,2,10 FITEM,2,37 FITEM,2,66 AL,P51X FLST,2,4,4 FITEM,2,65 FITEM,2,17 FITEM,2,16 FITEM,2,177 AL,P51X FLST,2,4,4 FITEM,2,177 FITEM,2,96 FITEM,2,95 FITEM,2,114 AL,P51X FLST,2,4,4 FITEM,2,113 FITEM,2,102 FITEM,2,103 FITEM,2,107 AL,P51X FLST,2,4,4 FITEM,2,38 FITEM,2,11 FITEM,2,67 FITEM,2,12 AL,P51X FLST,2,4,4 FITEM,2,68 FITEM,2,17 FITEM,2,178 FITEM,2,15 AL,P51X FLST,2,4,4 FITEM,2,70 FITEM,2,72 FITEM,2,67 FITEM,2,74 AL,P51X FLST,2,4,4 FITEM,2,70 FITEM,2,73 FITEM,2,68 FITEM,2,75 AL,P51X FLST,2,4,4 FITEM,2,178 FITEM,2,95 FITEM,2,127 FITEM,2,97 AL,P51X FLST,2,4,4 FITEM,2,97 FITEM,2,118 FITEM,2,119 FITEM,2,94 AL,P51X FLST,2,4,4 FITEM,2,118 FITEM,2,117 FITEM,2,116 FITEM,2,115 AL,P51X FLST,2,4,4 FITEM,2,116 FITEM,2,102 FITEM,2,105 FITEM,2,108 AL,P51X FLST,2,4,4 FITEM,2,39 FITEM,2,12 FITEM,2,40 FITEM,2,42 AL,P51X FLST,2,4,4 FITEM,2,40 FITEM,2,74 FITEM,2,71 FITEM,2,76 AL,P51X FLST,2,4,4 FITEM,2,71 FITEM,2,75 FITEM,2,41 FITEM,2,77 AL,P51X FLST,2,4,4 FITEM,2,41 FITEM,2,15 FITEM,2,179 FITEM,2,43 AL,P51X FLST,2,4,4 FITEM,2,179 FITEM,2,127 FITEM,2,128 FITEM,2,126 AL,P51X FLST,2,4,4 FITEM,2,128 FITEM,2,109 FITEM,2,94 FITEM,2,93 AL,P51X FLST,2,4,4 FITEM,2,109 FITEM,2,115 FITEM,2,110 FITEM,2,111 AL,P51X FLST,2,4,4 FITEM,2,110 FITEM,2,105 FITEM,2,106 FITEM,2,104 AL,P51X FLST,2,4,4 FITEM,2,85 FITEM,2,180 FITEM,2,78 FITEM,2,80 AL,P51X FLST,2,4,4 FITEM,2,52 FITEM,2,55 FITEM,2,171 FITEM,2,53 AL,P51X FLST,2,4,4 FITEM,2,171 FITEM,2,162 FITEM,2,168 FITEM,2,163 AL,P51X FLST,2,4,4 FITEM,2,160 FITEM,2,158 FITEM,2,181 FITEM,2,159 AL,P51X FLST,2,4,4 FITEM,2,56 FITEM,2,57 FITEM,2,62 FITEM,2,61 AL,P51X FLST,2,4,4 FITEM,2,62 FITEM,2,58 FITEM,2,59 FITEM,2,60 AL,P51X FLST,2,4,4 FITEM,2,152 FITEM,2,151 FITEM,2,146 FITEM,2,148 AL,P51X FLST,2,4,4 FITEM,2,146 FITEM,2,149 FITEM,2,150 FITEM,2,147 AL,P51X FLST,2,4,4 FITEM,2,51 FITEM,2,49 FITEM,2,175 FITEM,2,50 AL,P51X FLST,2,4,4 FITEM,2,175 FITEM,2,129 FITEM,2,131 FITEM,2,130 AL,P51X FLST,2,4,4 FITEM,2,81 FITEM,2,82 FITEM,2,83 FITEM,2,84 AL,P51X FLST,2,4,4 FITEM,2,125 FITEM,2,124 FITEM,2,122 FITEM,2,123 AL,P51X FLST,2,4,4 FITEM,2,63 FITEM,2,66 FITEM,2,72 FITEM,2,69 AL,P51X FLST,2,4,4 FITEM,2,69 FITEM,2,64 FITEM,2,65 FITEM,2,73 AL,P51X FLST,2,4,4 FITEM,2,114 FITEM,2,121 FITEM,2,112 FITEM,2,119 AL,P51X FLST,2,4,4 FITEM,2,112 FITEM,2,120 FITEM,2,113 FITEM,2,117 AL,P51X FLST,5,69,4,ORDE,25 FITEM,5,1 FITEM,5,-5 FITEM,5,8 FITEM,5,-29 FITEM,5,33 FITEM,5,35 FITEM,5,-36 FITEM,5,42 FITEM,5,-43 FITEM,5,47 FITEM,5,87 FITEM,5,-92 FITEM,5,95 FITEM,5,-96 FITEM,5,98 FITEM,5,-105 FITEM,5,126 FITEM,5,-127 FITEM,5,132 FITEM,5,-144 FITEM,5,172 FITEM,5,174 FITEM,5,176 FITEM,5,182 FITEM,5,-183 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,12, , , , ,1 ! 삼각형 한변 !* FLST,5,16,4,ORDE,15 FITEM,5,32 FITEM,5,39 FITEM,5,-41 FITEM,5,44 FITEM,5,-45 FITEM,5,71 FITEM,5,106 FITEM,5,109 FITEM,5,-110 FITEM,5,128 FITEM,5,156 FITEM,5,161 FITEM,5,166 FITEM,5,169 FITEM,5,179 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,3, , , , ,1 !* FLST,5,16,4,ORDE,16 FITEM,5,38 FITEM,5,54 FITEM,5,67 FITEM,5,-68 FITEM,5,70 FITEM,5,79 FITEM,5,86 FITEM,5,97 FITEM,5,108 FITEM,5,116 FITEM,5,118 FITEM,5,153 FITEM,5,157 FITEM,5,167 FITEM,5,170 FITEM,5,178 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,3, , , , ,1 !* FLST,5,79,4,ORDE,38 FITEM,5,30 FITEM,5,-31 FITEM,5,34 FITEM,5,37 FITEM,5,46 FITEM,5,48 FITEM,5,-53 FITEM,5,55 FITEM,5,-66 FITEM,5,69 FITEM,5,72 FITEM,5,-78 FITEM,5,80 FITEM,5,-85 FITEM,5,93 FITEM,5,-94 FITEM,5,107 FITEM,5,111 FITEM,5,-115 FITEM,5,117 FITEM,5,119 FITEM,5,-125 FITEM,5,129 FITEM,5,-131 FITEM,5,145 FITEM,5,-152 FITEM,5,154 FITEM,5,-155 FITEM,5,158 FITEM,5,-160 FITEM,5,162 FITEM,5,-165 FITEM,5,168 FITEM,5,173 FITEM,5,175 FITEM,5,177 FITEM,5,180 FITEM,5,-181 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,2, , , , ,1 ! 리브 폭 FLST,5,1,4,ORDE,1 FITEM,5,171 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,2, , , , ,1 ! 리브 폭 FLST,5,1,4,ORDE,1 FITEM,5,184 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,3, , , , ,1 ! 플레이트 두께 !* FLST,5,1,4,ORDE,1 FITEM,5,185 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,4, , , , ,1 ! 리브 두께 FLST,5,4,4,ORDE,4 FITEM,5,84 FITEM,5,-85 FITEM,5,122 FITEM,5,158 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !* LESIZE,_Y1, , ,3, , , , ,1 FLST,2,86,5,ORDE,2 FITEM,2,1 FITEM,2,-86 FLST,8,2,4 FITEM,8,184 FITEM,8,185 VDRAG,P51X, , , , , ,P51X FLST,2,24,6,ORDE,24 FITEM,2,94 FITEM,2,97 FITEM,2,101 FITEM,2,103 FITEM,2,105 FITEM,2,-106 FITEM,2,108 FITEM,2,110 FITEM,2,115 FITEM,2,117 FITEM,2,119 FITEM,2,-120 FITEM,2,122 FITEM,2,124 FITEM,2,127 FITEM,2,129 FITEM,2,131 FITEM,2,-132 FITEM,2,134 FITEM,2,136 FITEM,2,141 FITEM,2,-142 FITEM,2,145 FITEM,2,148 VDELE,P51X FLST,5,86,6,ORDE,2 FITEM,5,1 FITEM,5,-86 VSEL,S, , ,P51X cm,plate,volu type,1 mat,1 vmesh,all allsel FLST,5,62,6,ORDE,30 FITEM,5,87 FITEM,5,-93 FITEM,5,95 FITEM,5,-96 FITEM,5,98 FITEM,5,-100 FITEM,5,102 FITEM,5,104 FITEM,5,107 FITEM,5,109 FITEM,5,111 FITEM,5,-114 FITEM,5,116 FITEM,5,118 FITEM,5,121 FITEM,5,123 FITEM,5,125 FITEM,5,-126 FITEM,5,128 FITEM,5,130 FITEM,5,133 FITEM,5,135 FITEM,5,137 FITEM,5,-140 FITEM,5,143 FITEM,5,-144 FITEM,5,146 FITEM,5,-147 FITEM,5,149 FITEM,5,-172 VSEL,S, , ,P51X cm,rib,volu type,1 mat,1 vmesh,all allsel /solu time,1 nropt,auto nlgeom,on lnsrch,on solc,on autots,on nsubst,50,1000,20 outres,all,-10 FLST,2,22,4,ORDE,13 FITEM,2,32 FITEM,2,-39 FITEM,2,84 FITEM,2,-86 FITEM,2,88 FITEM,2,99 FITEM,2,106 FITEM,2,-108 FITEM,2,122 FITEM,2,140 FITEM,2,145 FITEM,2,156 FITEM,2,-158 DL,P51X, ,ALL,0 allsel FLST,2,11,4,ORDE,2 FITEM,2,169 FITEM,2,-179 DL,P51X, ,UZ,-100 allsel solv time,2 FLST,2,22,4,ORDE,13 FITEM,2,32 FITEM,2,-39 FITEM,2,84 FITEM,2,-86 FITEM,2,88 FITEM,2,99 FITEM,2,106 FITEM,2,-108 FITEM,2,122 FITEM,2,140 FITEM,2,145 FITEM,2,156 FITEM,2,-158 DL,P51X, ,ALL,0 allsel FLST,2,11,4,ORDE,2 FITEM,2,169 FITEM,2,-179 DLDELE,P51X,UZ allsel solv /post1

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Solving_난이도(上) Q&A transient 비선형 해석 발산에 대해

이종웅 추천 0 조회 411 05.08.12 11:25 댓글 3

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lks~
05.08.16 14:54

첫댓글 강제변위 값을 더 작은 값으로 쓰셔야 할 것 같습니다. 즉, time,.... solve를 여러개 쓰셔야 할 것 같네요.
비오는 밤
05.08.22 15:12

나 영진이 인데...ㅡㅡ 요소를 바꾸어야지..맨날 45쓰냐 ㅡㅡ
윤진환
05.08.27 12:11

플라스틱 스트레인 상한값인 0.15를 더크게 주어 보세요 ^^

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