*HEADING : TESTING TOTAL DSA FORMULATION FOR AXISYMMETRIC ELEMENTS (CAX_) ** ** o AXIAL PULLING OF A BAR ** o ELASTIC MATERIAL ** ** Node/element numbering scheme: ** element test | second and subsequent node prefix label | element label ** cgax3 100_/200_ 100/200 ** cgax3h 101_/201_ 101/201 ** cgax4 102_/202_ 102/202 ** cgax4h 103_/203_ 103/203 ** cgax4r 106_/206_ 106/206 ** cgax4rh 107_/207_ 107/207 ** cgax6 108_/208_ 108/208 ** cgax6h 109_/209_ 109/209 ** cgax8 112_ 112 ** cgax8h 113_ 113 ** cgax8r 114_ 114 ** cgax8rh 115_ 115 ** cgax6m 116_/216_ 116/216 ** cgax6mh 117_/217_ 117/217 ** ** The "_" is replaced by the node number for an element. All models ** are two elements except for the 8 noded elements. Nodes shared by ** both elements will be labeled as belonging to the first element. ** ** Grid of nodes: ** ** | 2 ** | ** ** A O D O G O ** ** ** ** B O E O H O ** ** ** ** C O F O I O ---- 1 ** *PARAMETER load = -2000. young = 100000. nu = 0.3 thick = 1.0 shape = 0.0 *DESIGN PARAMETER young,shape *DSA CONTROLS, FORMULATION=TOTAL *NODE,NSET=A 1001, 0.0, 1.0 1011, 0.0, 1.0 1021, 0.0, 1.0 1031, 0.0, 1.0 1041, 0.0, 1.0 1051, 0.0, 1.0 1061, 0.0, 1.0 1071, 0.0, 1.0 1081, 0.0, 1.0 1091, 0.0, 1.0 1101, 0.0, 1.0 1111, 0.0, 1.0 1121, 0.0, 1.0 1131, 0.0, 1.0 1141, 0.0, 1.0 1151, 0.0, 1.0 1161, 0.0, 1.0 1171, 0.0, 1.0 *NODE,NSET=B 1084, 0.0, 0.5 1094, 0.0, 0.5 1104, 0.0, 0.5 1114, 0.0, 0.5 1125, 0.0, 0.5 1135, 0.0, 0.5 1145, 0.0, 0.5 1155, 0.0, 0.5 1162, 0.0, 0.5 1172, 0.0, 0.5 *NODE,NSET=C 1002, 0.0, 0.0 1012, 0.0, 0.0 1022, 0.0, 0.0 1032, 0.0, 0.0 1062, 0.0, 0.0 1072, 0.0, 0.0 1082, 0.0, 0.0 1092, 0.0, 0.0 1122, 0.0, 0.0 1132, 0.0, 0.0 1142, 0.0, 0.0 1152, 0.0, 0.0 1163, 0.0, 0.0 1173, 0.0, 0.0 *NODE,NSET=D 1024, 0.5, 1.0 1034, 0.5, 1.0 1064, 0.5, 1.0 1074, 0.5, 1.0 2086, 0.5, 1.0 2096, 0.5, 1.0 2106, 0.5, 1.0 1128, 0.5, 1.0 1138, 0.5, 1.0 1148, 0.5, 1.0 1158, 0.5, 1.0 1164, 0.5, 1.0 1174, 0.5, 1.0 *NSET,NSET=DEQ 2086, 2096, 2106, 2116, *NODE,NSET=E 1086, 0.5, 0.5 1096, 0.5, 0.5 1106, 0.5, 0.5 1165, 0.5, 0.5 1175, 0.5, 0.5 *NODE,NSET=F 1023, 0.5, 0.0 1033, 0.5, 0.0 1063, 0.5, 0.0 1073, 0.5, 0.0 1085, 0.5, 0.0 1095, 0.5, 0.0 1126, 0.5, 0.0 1136, 0.5, 0.0 1146, 0.5, 0.0 1156, 0.5, 0.0 1166, 0.5, 0.0 1176, 0.5, 0.0 *NODE,NSET=G 2003, 1.0, 1.0 2013, 1.0, 1.0 2024, 1.0, 1.0 2034, 1.0, 1.0 2064, 1.0, 1.0 2074, 1.0, 1.0 2083, 1.0, 1.0 2093, 1.0, 1.0 1124, 1.0, 1.0 1134, 1.0, 1.0 1144, 1.0, 1.0 1154, 1.0, 1.0 1167, 1.0, 1.0 1177, 1.0, 1.0 *NSET,NSET=GEQ 2083, 2093, 1124, 1134, 1144, 1154, *NODE,NSET=H 2085, 1.0, 0.5 2095, 1.0, 0.5 2105, 1.0, 0.5 2115, 1.0, 0.5 1127, 1.0, 0.5 1137, 1.0, 0.5 1147, 1.0, 0.5 1157, 1.0, 0.5 1168, 1.0, 0.5 1178, 1.0, 0.5 *NODE,NSET=I 1003, 1.0, 0.0 1013, 1.0, 0.0 2023, 1.0, 0.0 2033, 1.0, 0.0 2063, 1.0, 0.0 2073, 1.0, 0.0 1083, 1.0, 0.0 1093, 1.0, 0.0 1113, 1.0, 0.0 1123, 1.0, 0.0 1133, 1.0, 0.0 1143, 1.0, 0.0 1153, 1.0, 0.0 1169, 1.0, 0.0 1179, 1.0, 0.0 *PARAMETER SHAPE VARIATION, PARAMETER=shape G, 1., 1., 0. *NSET,NSET=FIXED C, *NSET,NSET=FIXED1 A,B *NSET,NSET=FIXED2 F,I ** ** ELEMENT DEFINITIONS ** *ELEMENT,ELSET=CGAX3,TYPE=CGAX3 100,1001,1002,1003 200,1001,1003,2003 *ELEMENT,ELSET=CGAX3H,TYPE=CGAX3H 101,1011,1012,1013 201,1011,1013,2013 *ELEMENT,ELSET=CGAX4,TYPE=CGAX4 102,1021,1022,1023,1024 202,1024,1023,2023,2024 *ELEMENT,ELSET=CGAX4H,TYPE=CGAX4H 103,1031,1032,1033,1034 203,1034,1033,2033,2034 *ELEMENT,ELSET=CGAX4R,TYPE=CGAX4R 106,1061,1062,1063,1064 206,1064,1063,2063,2064 *ELEMENT,ELSET=CGAX4RH,TYPE=CGAX4RH 107,1071,1072,1073,1074 207,1074,1073,2073,2074 *ELEMENT,ELSET=CGAX6,TYPE=CGAX6 108,1081,1082,1083,1084,1085,1086 208,1081,1083,2083,1086,2085,2086 *ELEMENT,ELSET=CGAX6H,TYPE=CGAX6H 109,1091,1092,1093,1094,1095,1096 209,1091,1093,2093,1096,2095,2096 *ELEMENT,ELSET=CGAX8,TYPE=CGAX8 112,1121,1122,1123,1124,1125,1126,1127,1128 *ELEMENT,ELSET=CGAX8H,TYPE=CGAX8H 113,1131,1132,1133,1134,1135,1136,1137,1138 *ELEMENT,ELSET=CGAX8R,TYPE=CGAX8R 114,1141,1142,1143,1144,1145,1146,1147,1148 *ELEMENT,ELSET=CGAX8RH,TYPE=CGAX8RH 115,1151,1152,1153,1154,1155,1156,1157,1158 *ELEMENT, ELSET=CGAX6M, TYPE=CGAX6M 116,1161,1163,1169,1162,1166,1165 216,1161,1169,1167,1165,1168,1164 *ELEMENT, ELSET=CGAX6MH, TYPE=CGAX6MH 117,1171,1173,1179,1172,1176,1175 217,1171,1179,1177,1175,1178,1174 *ELSET,ELSET=ALL CGAX3,CGAX3H,CGAX4,CGAX4H,CGAX4R,CGAX4RH,CGAX6,CGAX6H, CGAX8,CGAX8H,CGAX8R,CGAX8RH,CGAX6M,CGAX6MH *ELSET,ELSET=LOADP3 200,201,208,209,210,211,216,217 *ELSET,ELSET=LOADP4 102,202,103,203,104,204,105,205,106,206,107,207, 112,113,114,115 ** *SOLID SECTION,ELSET=ALL,MATERIAL=MAT , ** *MATERIAL,NAME=MAT *ELASTIC , ** *BOUNDARY FIXED,1,2 FIXED1,1,1 FIXED2,2,2 FIXED,5,5 FIXED1,5,5 ** ** KINEMATIC CONSTRAINTS (TO MAINTAIN UNIFORM DEFORMATION) ** *NSET,NSET=EU,UNSORTED 1086,1096,1165,1175 *NSET,NSET=DEQU,UNSORTED 2086,2096,1164,1174 *NSET,NSET=FU,UNSORTED 1023,1033,1063,1073,1085, 1095,1126,1136,1146,1156, 1166,1176 *NSET,NSET=DU,UNSORTED 1024,1034,1064,1074,2086, 2096,1128,1138,1148,1158, 1164,1174 *NSET,NSET=HU,UNSORTED 2085,2095,1127,1137,1147,1157, 1168,1178 *NSET,NSET=GEQU,UNSORTED 2083,2093,1124,1134,1144,1154, 1167,1177 *NSET,NSET=IU,UNSORTED 1003,1013,2023,2033,2063,2073, 1083,1093,1123,1133,1143,1153, 1169,1179 *NSET,NSET=GU,UNSORTED 2003,2013,2024,2034,2064,2074, 2083,2093,1124,1134,1144,1154, 1167,1177 *EQUATION 2, EU,1,1.,DEQU,1,-1. 2, FU,1,1.,DU,1,-1. 2, HU,1,1.,GEQU,1,-1. 2, IU,1,1.,GU,1,-1. *STEP,NLGEOM,DSA,UNSYMM=YES STEP 1: GEOMETRICALLY NONLINEAR; TOTAL DSA *STATIC 0.1, 0.4 ** *DLOAD LOADP3,P3, LOADP4,P4, ** *CLOAD G,5,5, *OUTPUT,FIELD,FREQ=2 *NODE OUTPUT,NSET=G U, *NODE OUTPUT,NSET=C RF, *ELEMENT OUTPUT LE *DESIGN RESPONSE,FREQ=2 *NODE RESPONSE, NSET=G U, *NODE RESPONSE, NSET=C RF, *ELEMENT RESPONSE LE *END STEP