*HEADING
NAFEMS BENCHMARK EXAMPLE 3DNLG-4, ELEMENT SC8R
LATERAL TORSIONAL BUCKLING OF AN ELASTIC CANTILEVER SUBJECTED TO TRANSVERSE END LOAD
NON-CONSERVATIVE LOAD CASE
*NODE
1, 0.000000, 0.100000, 0.000000,
1001, 0.000000, 0.000000, 0.000000,
2001, 0.000000, -0.100000, 0.000000,
2, 10.000000, 0.100000, 0.000000,
1002, 10.000000, 0.000000, 0.000000,
2002, 10.000000, -0.100000, 0.000000,
3, 20.000000, 0.100000, 0.000000,
1003, 20.000000, 0.000000, 0.000000,
2003, 20.000000, -0.100000, 0.000000,
4, 29.999995, 0.100000, 0.000000,
1004, 30.000000, 0.000000, 0.000000,
2004, 30.000005, -0.100000, 0.000000,
5, 39.999990, 0.101000, 0.000000,
1005, 40.000000, 0.001000, 0.000000,
2005, 40.000010, -0.099000, 0.000000,
6, 49.999990, 0.102000, 0.000000,
1006, 50.000000, 0.002000, 0.000000,
2006, 50.000010, -0.098000, 0.000000,
7, 59.999990, 0.103000, 0.000000,
1007, 60.000000, 0.003000, 0.000000,
2007, 60.000010, -0.097000, 0.000000,
8, 69.999985, 0.104000, -0.000120,
1008, 70.000000, 0.004000, 0.000000,
2008, 70.000015, -0.096000, 0.000120,
9, 79.999980, 0.106000, 0.000000,
1009, 80.000000, 0.006000, 0.000000,
2009, 80.000020, -0.094000, 0.000000,
10, 89.999985, 0.108000, 0.000000,
1010, 90.000000, 0.008000, 0.000000,
2010, 90.000015, -0.092000, 0.000000,
11, 99.999990, 0.109000, -0.000120,
1011, 100.000000, 0.009000, 0.000000,
2011, 100.000010, -0.091000, 0.000120,
101, 0.000000, 0.100000, 0.833000,
1101, 0.000000, 0.000000, 0.833000,
2101, 0.000000, -0.100000, 0.833000,
102, 10.000000, 0.100000, 0.833000,
1102, 10.000000, 0.000000, 0.833000,
2102, 10.000000, -0.100000, 0.833000,
103, 20.000000, 0.100000, 0.833000,
1103, 20.000000, 0.000000, 0.833000,
2103, 20.000000, -0.100000, 0.833000,
104, 29.999995, 0.100000, 0.833000,
1104, 30.000000, 0.000000, 0.833000,
2104, 30.000005, -0.100000, 0.833000,
105, 39.999990, 0.101000, 0.833000,
1105, 40.000000, 0.001000, 0.833000,
2105, 40.000010, -0.099000, 0.833000,
106, 49.999990, 0.102000, 0.833000,
1106, 50.000000, 0.002000, 0.833000,
2106, 50.000010, -0.098000, 0.833000,
107, 59.999985, 0.103000, 0.833000,
1107, 60.000000, 0.003000, 0.833000,
2107, 60.000015, -0.097000, 0.833000,
108, 69.999985, 0.105000, 0.832940,
1108, 70.000000, 0.005000, 0.833000,
2108, 70.000015, -0.095000, 0.833060,
109, 79.999985, 0.106000, 0.833000,
1109, 80.000000, 0.006000, 0.833000,
2109, 80.000015, -0.094000, 0.833000,
110, 89.999980, 0.108000, 0.833000,
1110, 90.000000, 0.008000, 0.833000,
2110, 90.000020, -0.092000, 0.833000,
111, 99.999980, 0.110000, 0.832940,
1111, 100.000000, 0.010000, 0.833000,
2111, 100.000020, -0.090000, 0.833060,
201, 0.000000, 0.100000, 1.667000,
1201, 0.000000, 0.000000, 1.667000,
2201, 0.000000, -0.100000, 1.667000,
202, 10.000000, 0.100000, 1.667000,
1202, 10.000000, 0.000000, 1.667000,
2202, 10.000000, -0.100000, 1.667000,
203, 20.000000, 0.100000, 1.667000,
1203, 20.000000, 0.000000, 1.667000,
2203, 20.000000, -0.100000, 1.667000,
204, 29.999995, 0.100000, 1.666940,
1204, 30.000000, 0.000000, 1.667000,
2204, 30.000005, -0.100000, 1.667060,
205, 39.999990, 0.101000, 1.667000,
1205, 40.000000, 0.001000, 1.667000,
2205, 40.000010, -0.099000, 1.667000,
206, 49.999990, 0.102000, 1.667000,
1206, 50.000000, 0.002000, 1.667000,
2206, 50.000010, -0.098000, 1.667000,
207, 59.999985, 0.103000, 1.667000,
1207, 60.000000, 0.003000, 1.667000,
2207, 60.000015, -0.097000, 1.667000,
208, 69.999985, 0.105000, 1.667000,
1208, 70.000000, 0.005000, 1.667000,
2208, 70.000015, -0.095000, 1.667000,
209, 79.999985, 0.106000, 1.667000,
1209, 80.000000, 0.006000, 1.667000,
2209, 80.000015, -0.094000, 1.667000,
210, 89.999980, 0.108000, 1.667000,
1210, 90.000000, 0.008000, 1.667000,
2210, 90.000020, -0.092000, 1.667000,
211, 99.999980, 0.110000, 1.667000,
1211, 100.000000, 0.010000, 1.667000,
2211, 100.000020, -0.090000, 1.667000,
301, 0.000000, 0.100000, 2.500000,
1301, 0.000000, 0.000000, 2.500000,
2301, 0.000000, -0.100000, 2.500000,
302, 10.000000, 0.100000, 2.500000,
1302, 10.000000, 0.000000, 2.500000,
2302, 10.000000, -0.100000, 2.500000,
303, 19.999995, 0.100000, 2.500000,
1303, 20.000000, 0.000000, 2.500000,
2303, 20.000005, -0.100000, 2.500000,
304, 29.999995, 0.101000, 2.499940,
1304, 30.000000, 0.001000, 2.500000,
2304, 30.000005, -0.099000, 2.500060,
305, 39.999995, 0.101000, 2.500000,
1305, 40.000000, 0.001000, 2.500000,
2305, 40.000005, -0.099000, 2.500000,
306, 49.999990, 0.102000, 2.500000,
1306, 50.000000, 0.002000, 2.500000,
2306, 50.000010, -0.098000, 2.500000,
307, 59.999985, 0.103000, 2.500000,
1307, 60.000000, 0.003000, 2.500000,
2307, 60.000015, -0.097000, 2.500000,
308, 69.999985, 0.105000, 2.500000,
1308, 70.000000, 0.005000, 2.500000,
2308, 70.000015, -0.095000, 2.500000,
309, 79.999985, 0.106000, 2.500000,
1309, 80.000000, 0.006000, 2.500000,
2309, 80.000015, -0.094000, 2.500000,
310, 89.999980, 0.108000, 2.500000,
1310, 90.000000, 0.008000, 2.500000,
2310, 90.000020, -0.092000, 2.500000,
311, 99.999980, 0.110000, 2.500000,
1311, 100.000000, 0.010000, 2.500000,
2311, 100.000020, -0.090000, 2.500000,
401, 0.000000, 0.100000, 3.333000,
1401, 0.000000, 0.000000, 3.333000,
2401, 0.000000, -0.100000, 3.333000,
402, 10.000000, 0.100000, 3.333000,
1402, 10.000000, 0.000000, 3.333000,
2402, 10.000000, -0.100000, 3.333000,
403, 19.999995, 0.100000, 3.333000,
1403, 20.000000, 0.000000, 3.333000,
2403, 20.000005, -0.100000, 3.333000,
404, 29.999995, 0.101000, 3.333000,
1404, 30.000000, 0.001000, 3.333000,
2404, 30.000005, -0.099000, 3.333000,
405, 39.999995, 0.101000, 3.333000,
1405, 40.000000, 0.001000, 3.333000,
2405, 40.000005, -0.099000, 3.333000,
406, 49.999990, 0.102000, 3.333000,
1406, 50.000000, 0.002000, 3.333000,
2406, 50.000010, -0.098000, 3.333000,
407, 59.999985, 0.103000, 3.333000,
1407, 60.000000, 0.003000, 3.333000,
2407, 60.000015, -0.097000, 3.333000,
408, 69.999985, 0.105000, 3.333000,
1408, 70.000000, 0.005000, 3.333000,
2408, 70.000015, -0.095000, 3.333000,
409, 79.999985, 0.106000, 3.333000,
1409, 80.000000, 0.006000, 3.333000,
2409, 80.000015, -0.094000, 3.333000,
410, 89.999980, 0.108000, 3.333000,
1410, 90.000000, 0.008000, 3.333000,
2410, 90.000020, -0.092000, 3.333000,
411, 99.999980, 0.110000, 3.333000,
1411, 100.000000, 0.010000, 3.333000,
2411, 100.000020, -0.090000, 3.333000,
501, 0.000000, 0.100000, 4.167000,
1501, 0.000000, 0.000000, 4.167000,
2501, 0.000000, -0.100000, 4.167000,
502, 10.000000, 0.100000, 4.167000,
1502, 10.000000, 0.000000, 4.167000,
2502, 10.000000, -0.100000, 4.167000,
503, 19.999995, 0.100000, 4.167000,
1503, 20.000000, 0.000000, 4.167000,
2503, 20.000005, -0.100000, 4.167000,
504, 29.999995, 0.101000, 4.167000,
1504, 30.000000, 0.001000, 4.167000,
2504, 30.000005, -0.099000, 4.167000,
505, 39.999995, 0.101000, 4.167000,
1505, 40.000000, 0.001000, 4.167000,
2505, 40.000005, -0.099000, 4.167000,
506, 49.999990, 0.102000, 4.167000,
1506, 50.000000, 0.002000, 4.167000,
2506, 50.000010, -0.098000, 4.167000,
507, 59.999985, 0.103000, 4.166940,
1507, 60.000000, 0.003000, 4.167000,
2507, 60.000015, -0.097000, 4.167060,
508, 69.999985, 0.105000, 4.167000,
1508, 70.000000, 0.005000, 4.167000,
2508, 70.000015, -0.095000, 4.167000,
509, 79.999985, 0.106000, 4.166940,
1509, 80.000000, 0.006000, 4.167000,
2509, 80.000015, -0.094000, 4.167060,
510, 89.999980, 0.108000, 4.167000,
1510, 90.000000, 0.008000, 4.167000,
2510, 90.000020, -0.092000, 4.167000,
511, 99.999980, 0.110000, 4.167000,
1511, 100.000000, 0.010000, 4.167000,
2511, 100.000020, -0.090000, 4.167000,
601, 0.000000, 0.100000, 5.000000,
1601, 0.000000, 0.000000, 5.000000,
2601, 0.000000, -0.100000, 5.000000,
602, 10.000000, 0.100000, 5.000000,
1602, 10.000000, 0.000000, 5.000000,
2602, 10.000000, -0.100000, 5.000000,
603, 19.999995, 0.100000, 5.000000,
1603, 20.000000, 0.000000, 5.000000,
2603, 20.000005, -0.100000, 5.000000,
604, 29.999995, 0.101000, 5.000000,
1604, 30.000000, 0.001000, 5.000000,
2604, 30.000005, -0.099000, 5.000000,
605, 39.999995, 0.101000, 5.000000,
1605, 40.000000, 0.001000, 5.000000,
2605, 40.000005, -0.099000, 5.000000,
606, 49.999985, 0.102000, 5.000000,
1606, 50.000000, 0.002000, 5.000000,
2606, 50.000015, -0.098000, 5.000000,
607, 59.999985, 0.104000, 4.999880,
1607, 60.000000, 0.004000, 5.000000,
2607, 60.000015, -0.096000, 5.000120,
608, 69.999985, 0.105000, 5.000000,
1608, 70.000000, 0.005000, 5.000000,
2608, 70.000015, -0.095000, 5.000000,
609, 79.999985, 0.107000, 4.999880,
1609, 80.000000, 0.007000, 5.000000,
2609, 80.000015, -0.093000, 5.000120,
610, 89.999985, 0.108000, 5.000000,
1610, 90.000000, 0.008000, 5.000000,
2610, 90.000015, -0.092000, 5.000000,
611, 99.999980, 0.110000, 5.000000,
1611, 100.000000, 0.010000, 5.000000,
2611, 100.000020, -0.090000, 5.000000,
*NSET,NSET=FIX,GEN
1, 601,100
1001,1601,100
2001,2601,100
*NSET,NSET=N311
1311,
*ELEMENT,TYPE=SC8R
1,1,2,102,101,1001,1002,1102,1101
*ELGEN,ELSET=SHELL
1,10,1,1,6,100,100,2,1000,1000
*SHELL SECTION,ELSET=SHELL,MATERIAL=MAT, POISSON=ELASTIC
0.2,
** Dummy element to activate rotation degree of freedom for follower
*ELEMENT,TYPE=S4R,ELSET=DUMMY
999999, 1410,1411,1311,1310
999998, 1310,1311,1211,1210
*SHELL SECTION,ELSET=DUMMY,MATERIAL=DUMMY
0.0001
*MATERIAL,NAME=DUMMY
*ELASTIC
1.0,0.0
*MATERIAL,NAME=MAT
*ELASTIC
1.0E4,0.0
*BOUNDARY
FIX,1,3
*STEP,NLGEOM,INC=50,UNSYMM=YES
*STATIC,RIKS
0.0005,1.0,,0.001,0.032
*CLOAD,FOLLOWER
N311,3,-1.0
*EL PRINT,FREQ=0
*OUTPUT,HISTORY,FREQ=1
*NODE OUTPUT,NSET=N311
U,
CF,
*END STEP