*HEADING : NAFEMS BENCHMARK EXAMPLE 3DNLG-6 BUCKLING OF A FLAT PLATE WHEN SUBJECTED TO IN-PLANE SHEAR *RESTART,WRITE,FREQ=999 *NODE 1, 0.000000 , 0.000000 , 0.000000 2, 62.500000 , 0.000000 , 0.000000 3, 125.000000 , 0.000000 , 0.000000 4, 187.500000 , 0.000000 , 0.000000 5, 250.000000 , 0.000000 , 0.000000 6, 312.500000 , 0.000000 , 0.000000 7, 375.000000 , 0.000000 , 0.000000 8, 437.500000 , 0.000000 , 0.000000 9, 500.000000 , 0.000000 , 0.000000 10, 562.500000 , 0.000000 , 0.000000 11, 625.000000 , 0.000000 , 0.000000 12, 687.500000 , 0.000000 , 0.000000 13, 750.000000 , 0.000000 , 0.000000 14, 812.500000 , 0.000000 , 0.000000 15, 875.000000 , 0.000000 , 0.000000 16, 937.500000 , 0.000000 , 0.000000 17, 1000.000000 , 0.000000 , 0.000000 18, 0.000000 , 62.500000 , 0.000000 19, 62.500000 , 62.500000 , 0.414134 20, 125.000000 , 62.500000 , 0.777311 21, 187.500000 , 62.500000 , 1.048233 22, 250.000000 , 62.500000 , 1.202312 23, 312.500000 , 62.500000 , 1.234452 24, 375.000000 , 62.500000 , 1.157397 25, 437.500000 , 62.500000 , 0.996849 26, 500.000000 , 62.500000 , 0.785236 27, 562.500000 , 62.500000 , 0.555889 28, 625.000000 , 62.500000 , 0.338625 29, 687.500000 , 62.500000 , 0.156886 30, 750.000000 , 62.500000 , 0.026018 31, 812.500000 , 62.500000 , -0.047709 32, 875.000000 , 62.500000 , -0.067448 33, 937.500000 , 62.500000 , -0.045202 34, 1000.000000 , 62.500000 , 0.000000 35, 0.000000 , 125.000000 , 0.000000 36, 62.500000 , 125.000000 , 0.779560 37, 125.000000 , 125.000000 , 1.469232 38, 187.500000 , 125.000000 , 1.995191 39, 250.000000 , 125.000000 , 2.311523 40, 312.500000 , 125.000000 , 2.405220 41, 375.000000 , 125.000000 , 2.294069 42, 437.500000 , 125.000000 , 2.019347 43, 500.000000 , 125.000000 , 1.636236 44, 562.500000 , 125.000000 , 1.204558 45, 625.000000 , 125.000000 , 0.781174 46, 687.500000 , 125.000000 , 0.414136 47, 750.000000 , 125.000000 , 0.138015 48, 812.500000 , 125.000000 , -0.029845 49, 875.000000 , 125.000000 , -0.091679 50, 937.500000 , 125.000000 , -0.069182 51, 1000.000000 , 125.000000 , 0.000000 52, 0.000000 , 187.500000 , 0.000000 53, 62.500000 , 187.500000 , 1.055663 54, 125.000000 , 187.500000 , 2.003485 55, 187.500000 , 187.500000 , 2.752524 56, 250.000000 , 187.500000 , 3.241545 57, 312.500000 , 187.500000 , 3.445208 58, 375.000000 , 187.500000 , 3.373467 59, 437.500000 , 187.500000 , 3.065960 60, 500.000000 , 187.500000 , 2.583899 61, 562.500000 , 187.500000 , 2.001386 62, 625.000000 , 187.500000 , 1.396775 63, 687.500000 , 187.500000 , 0.843732 64, 750.000000 , 187.500000 , 0.401719 65, 812.500000 , 187.500000 , 0.106687 66, 875.000000 , 187.500000 , -0.035943 67, 937.500000 , 187.500000 , -0.053272 68, 1000.000000 , 187.500000 , 0.000000 69, 0.000000 , 250.000000 , 0.000000 70, 62.500000 , 250.000000 , 1.216345 71, 125.000000 , 250.000000 , 2.331545 72, 187.500000 , 250.000000 , 3.255942 73, 250.000000 , 250.000000 , 3.920773 74, 312.500000 , 250.000000 , 4.284332 75, 375.000000 , 250.000000 , 4.334925 76, 437.500000 , 250.000000 , 4.091375 77, 500.000000 , 250.000000 , 3.601632 78, 562.500000 , 250.000000 , 2.939089 79, 625.000000 , 250.000000 , 2.195369 80, 687.500000 , 250.000000 , 1.468515 81, 750.000000 , 250.000000 , 0.846968 82, 812.500000 , 250.000000 , 0.392108 83, 875.000000 , 250.000000 , 0.124084 84, 937.500000 , 250.000000 , 0.016042 85, 1000.000000 , 250.000000 , 0.000000 86, 0.000000 , 312.500000 , 0.000000 87, 62.500000 , 312.500000 , 1.253510 88, 125.000000 , 312.500000 , 2.434911 89, 187.500000 , 312.500000 , 3.473016 90, 250.000000 , 312.500000 , 4.299918 91, 312.500000 , 312.500000 , 4.855945 92, 375.000000 , 312.500000 , 5.097573 93, 437.500000 , 312.500000 , 5.007327 94, 500.000000 , 312.500000 , 4.603065 95, 562.500000 , 312.500000 , 3.942754 96, 625.000000 , 312.500000 , 3.120881 97, 687.500000 , 312.500000 , 2.254469 98, 750.000000 , 312.500000 , 1.460092 99, 812.500000 , 312.500000 , 0.827178 100, 875.000000 , 312.500000 , 0.395483 101, 937.500000 , 312.500000 , 0.144575 102, 1000.000000 , 312.500000 , 0.000000 103, 0.000000 , 375.000000 , 0.000000 104, 62.500000 , 375.000000 , 1.177061 105, 125.000000 , 375.000000 , 2.326035 106, 187.500000 , 375.000000 , 3.406542 107, 250.000000 , 375.000000 , 4.359253 108, 312.500000 , 375.000000 , 5.108735 109, 375.000000 , 375.000000 , 5.576540 110, 437.500000 , 375.000000 , 5.701540 111, 500.000000 , 375.000000 , 5.461294 112, 562.500000 , 375.000000 , 4.886751 113, 625.000000 , 375.000000 , 4.063646 114, 687.500000 , 375.000000 , 3.117652 115, 750.000000 , 375.000000 , 2.185745 116, 812.500000 , 375.000000 , 1.381506 117, 875.000000 , 375.000000 , 0.765124 118, 937.500000 , 375.000000 , 0.328319 119, 1000.000000 , 375.000000 , 0.000000 120, 0.000000 , 437.500000 , 0.000000 121, 62.500000 , 437.500000 , 1.011664 122, 125.000000 , 437.500000 , 2.044075 123, 187.500000 , 437.500000 , 3.092975 124, 250.000000 , 437.500000 , 4.113576 125, 312.500000 , 437.500000 , 5.020848 126, 375.000000 , 437.500000 , 5.706658 127, 437.500000 , 437.500000 , 6.068942 128, 500.000000 , 437.500000 , 6.043564 129, 562.500000 , 437.500000 , 5.627982 130, 625.000000 , 437.500000 , 4.887886 131, 687.500000 , 437.500000 , 3.943281 132, 750.000000 , 437.500000 , 2.937282 133, 812.500000 , 437.500000 , 1.997033 134, 875.000000 , 437.500000 , 1.199316 135, 937.500000 , 437.500000 , 0.552328 136, 1000.000000 , 437.500000 , 0.000000 137, 0.000000 , 500.000000 , 0.000000 138, 62.500000 , 500.000000 , 0.791210 139, 125.000000 , 500.000000 , 1.646634 140, 187.500000 , 500.000000 , 2.596124 141, 250.000000 , 500.000000 , 3.612886 142, 312.500000 , 500.000000 , 4.611234 143, 375.000000 , 500.000000 , 5.465601 144, 437.500000 , 500.000000 , 6.044753 145, 500.000000 , 500.000000 , 6.250000 146, 562.500000 , 500.000000 , 6.044753 147, 625.000000 , 500.000000 , 5.465601 148, 687.500000 , 500.000000 , 4.611234 149, 750.000000 , 500.000000 , 3.612886 150, 812.500000 , 500.000000 , 2.596124 151, 875.000000 , 500.000000 , 1.646634 152, 937.500000 , 500.000000 , 0.791210 153, 1000.000000 , 500.000000 , 0.000000 154, 0.000000 , 562.500000 , 0.000000 155, 62.500000 , 562.500000 , 0.552328 156, 125.000000 , 562.500000 , 1.199316 157, 187.500000 , 562.500000 , 1.997033 158, 250.000000 , 562.500000 , 2.937282 159, 312.500000 , 562.500000 , 3.943281 160, 375.000000 , 562.500000 , 4.887886 161, 437.500000 , 562.500000 , 5.627982 162, 500.000000 , 562.500000 , 6.043564 163, 562.500000 , 562.500000 , 6.068942 164, 625.000000 , 562.500000 , 5.706658 165, 687.500000 , 562.500000 , 5.020848 166, 750.000000 , 562.500000 , 4.113576 167, 812.500000 , 562.500000 , 3.092975 168, 875.000000 , 562.500000 , 2.044075 169, 937.500000 , 562.500000 , 1.011664 170, 1000.000000 , 562.500000 , 0.000000 171, 0.000000 , 625.000000 , 0.000000 172, 62.500000 , 625.000000 , 0.328319 173, 125.000000 , 625.000000 , 0.765124 174, 187.500000 , 625.000000 , 1.381506 175, 250.000000 , 625.000000 , 2.185745 176, 312.500000 , 625.000000 , 3.117651 177, 375.000000 , 625.000000 , 4.063646 178, 437.500000 , 625.000000 , 4.886751 179, 500.000000 , 625.000000 , 5.461294 180, 562.500000 , 625.000000 , 5.701540 181, 625.000000 , 625.000000 , 5.576540 182, 687.500000 , 625.000000 , 5.108735 183, 750.000000 , 625.000000 , 4.359253 184, 812.500000 , 625.000000 , 3.406542 185, 875.000000 , 625.000000 , 2.326035 186, 937.500000 , 625.000000 , 1.177061 187, 1000.000000 , 625.000000 , -0.000001 188, 0.000000 , 687.500000 , 0.000000 189, 62.500000 , 687.500000 , 0.144574 190, 125.000000 , 687.500000 , 0.395483 191, 187.500000 , 687.500000 , 0.827178 192, 250.000000 , 687.500000 , 1.460092 193, 312.500000 , 687.500000 , 2.254469 194, 375.000000 , 687.500000 , 3.120881 195, 437.500000 , 687.500000 , 3.942754 196, 500.000000 , 687.500000 , 4.603065 197, 562.500000 , 687.500000 , 5.007328 198, 625.000000 , 687.500000 , 5.097573 199, 687.500000 , 687.500000 , 4.855945 200, 750.000000 , 687.500000 , 4.299918 201, 812.500000 , 687.500000 , 3.473015 202, 875.000000 , 687.500000 , 2.434911 203, 937.500000 , 687.500000 , 1.253509 204, 1000.000000 , 687.500000 , -0.000001 205, 0.000000 , 750.000000 , 0.000000 206, 62.500000 , 750.000000 , 0.016042 207, 125.000000 , 750.000000 , 0.124084 208, 187.500000 , 750.000000 , 0.392108 209, 250.000000 , 750.000000 , 0.846968 210, 312.500000 , 750.000000 , 1.468515 211, 375.000000 , 750.000000 , 2.195369 212, 437.500000 , 750.000000 , 2.939089 213, 500.000000 , 750.000000 , 3.601632 214, 562.500000 , 750.000000 , 4.091375 215, 625.000000 , 750.000000 , 4.334925 216, 687.500000 , 750.000000 , 4.284332 217, 750.000000 , 750.000000 , 3.920773 218, 812.500000 , 750.000000 , 3.255942 219, 875.000000 , 750.000000 , 2.331545 220, 937.500000 , 750.000000 , 1.216345 221, 1000.000000 , 750.000000 , -0.000001 222, 0.000000 , 812.500000 , 0.000000 223, 62.500000 , 812.500000 , -0.053272 224, 125.000000 , 812.500000 , -0.035944 225, 187.500000 , 812.500000 , 0.106687 226, 250.000000 , 812.500000 , 0.401719 227, 312.500000 , 812.500000 , 0.843732 228, 375.000000 , 812.500000 , 1.396775 229, 437.500000 , 812.500000 , 2.001386 230, 500.000000 , 812.500000 , 2.583898 231, 562.500000 , 812.500000 , 3.065959 232, 625.000000 , 812.500000 , 3.373467 233, 687.500000 , 812.500000 , 3.445208 234, 750.000000 , 812.500000 , 3.241545 235, 812.500000 , 812.500000 , 2.752524 236, 875.000000 , 812.500000 , 2.003485 237, 937.500000 , 812.500000 , 1.055663 238, 1000.000000 , 812.500000 , 0.000000 239, 0.000000 , 875.000000 , 0.000000 240, 62.500000 , 875.000000 , -0.069182 241, 125.000000 , 875.000000 , -0.091679 242, 187.500000 , 875.000000 , -0.029845 243, 250.000000 , 875.000000 , 0.138015 244, 312.500000 , 875.000000 , 0.414137 245, 375.000000 , 875.000000 , 0.781175 246, 437.500000 , 875.000000 , 1.204558 247, 500.000000 , 875.000000 , 1.636237 248, 562.500000 , 875.000000 , 2.019347 249, 625.000000 , 875.000000 , 2.294069 250, 687.500000 , 875.000000 , 2.405220 251, 750.000000 , 875.000000 , 2.311523 252, 812.500000 , 875.000000 , 1.995191 253, 875.000000 , 875.000000 , 1.469232 254, 937.500000 , 875.000000 , 0.779560 255, 1000.000000 , 875.000000 , 0.000000 256, 0.000000 , 937.500000 , 0.000000 257, 62.500000 , 937.500000 , -0.045202 258, 125.000000 , 937.500000 , -0.067448 259, 187.500000 , 937.500000 , -0.047709 260, 250.000000 , 937.500000 , 0.026018 261, 312.500000 , 937.500000 , 0.156886 262, 375.000000 , 937.500000 , 0.338625 263, 437.500000 , 937.500000 , 0.555889 264, 500.000000 , 937.500000 , 0.785236 265, 562.500000 , 937.500000 , 0.996849 266, 625.000000 , 937.500000 , 1.157397 267, 687.500000 , 937.500000 , 1.234452 268, 750.000000 , 937.500000 , 1.202312 269, 812.500000 , 937.500000 , 1.048233 270, 875.000000 , 937.500000 , 0.777311 271, 937.500000 , 937.500000 , 0.414134 272, 1000.000000 , 937.500000 , 0.000000 273, 0.000000 , 1000.000000 , 0.000000 274, 62.500000 , 1000.000000 , 0.000000 275, 125.000000 , 1000.000000 , 0.000000 276, 187.500000 , 1000.000000 , 0.000000 277, 250.000000 , 1000.000000 , 0.000000 278, 312.500000 , 1000.000000 , 0.000000 279, 375.000000 , 1000.000000 , 0.000000 280, 437.500000 , 1000.000000 , 0.000000 281, 500.000000 , 1000.000000 , 0.000000 282, 562.500000 , 1000.000000 , 0.000000 283, 625.000000 , 1000.000000 , -0.000001 284, 687.500000 , 1000.000000 , -0.000001 285, 750.000000 , 1000.000000 , -0.000001 286, 812.500000 , 1000.000000 , 0.000000 287, 875.000000 , 1000.000000 , 0.000000 288, 937.500000 , 1000.000000 , 0.000000 289, 1000.000000 , 1000.000000 , 0.000000 *ELEMENT, TYPE=S9R5, ELSET=PID1 1, 1, 3, 37, 35, 2, 20, 36, 18, 19 2, 3, 5, 39, 37, 4, 22, 38, 20, 21 3, 5, 7, 41, 39, 6, 24, 40, 22, 23 4, 7, 9, 43, 41, 8, 26, 42, 24, 25 5, 9, 11, 45, 43, 10, 28, 44, 26, 27 6, 11, 13, 47, 45, 12, 30, 46, 28, 29 7, 13, 15, 49, 47, 14, 32, 48, 30, 31 8, 15, 17, 51, 49, 16, 34, 50, 32, 33 9, 35, 37, 71, 69, 36, 54, 70, 52, 53 10, 37, 39, 73, 71, 38, 56, 72, 54, 55 11, 39, 41, 75, 73, 40, 58, 74, 56, 57 12, 41, 43, 77, 75, 42, 60, 76, 58, 59 13, 43, 45, 79, 77, 44, 62, 78, 60, 61 14, 45, 47, 81, 79, 46, 64, 80, 62, 63 15, 47, 49, 83, 81, 48, 66, 82, 64, 65 16, 49, 51, 85, 83, 50, 68, 84, 66, 67 17, 69, 71, 105, 103, 70, 88, 104, 86, 87 18, 71, 73, 107, 105, 72, 90, 106, 88, 89 19, 73, 75, 109, 107, 74, 92, 108, 90, 91 20, 75, 77, 111, 109, 76, 94, 110, 92, 93 21, 77, 79, 113, 111, 78, 96, 112, 94, 95 22, 79, 81, 115, 113, 80, 98, 114, 96, 97 23, 81, 83, 117, 115, 82, 100, 116, 98, 99 24, 83, 85, 119, 117, 84, 102, 118, 100, 101 25, 103, 105, 139, 137, 104, 122, 138, 120, 121 26, 105, 107, 141, 139, 106, 124, 140, 122, 123 27, 107, 109, 143, 141, 108, 126, 142, 124, 125 28, 109, 111, 145, 143, 110, 128, 144, 126, 127 29, 111, 113, 147, 145, 112, 130, 146, 128, 129 30, 113, 115, 149, 147, 114, 132, 148, 130, 131 31, 115, 117, 151, 149, 116, 134, 150, 132, 133 32, 117, 119, 153, 151, 118, 136, 152, 134, 135 33, 137, 139, 173, 171, 138, 156, 172, 154, 155 34, 139, 141, 175, 173, 140, 158, 174, 156, 157 35, 141, 143, 177, 175, 142, 160, 176, 158, 159 36, 143, 145, 179, 177, 144, 162, 178, 160, 161 37, 145, 147, 181, 179, 146, 164, 180, 162, 163 38, 147, 149, 183, 181, 148, 166, 182, 164, 165 39, 149, 151, 185, 183, 150, 168, 184, 166, 167 40, 151, 153, 187, 185, 152, 170, 186, 168, 169 41, 171, 173, 207, 205, 172, 190, 206, 188, 189 42, 173, 175, 209, 207, 174, 192, 208, 190, 191 43, 175, 177, 211, 209, 176, 194, 210, 192, 193 44, 177, 179, 213, 211, 178, 196, 212, 194, 195 45, 179, 181, 215, 213, 180, 198, 214, 196, 197 46, 181, 183, 217, 215, 182, 200, 216, 198, 199 47, 183, 185, 219, 217, 184, 202, 218, 200, 201 48, 185, 187, 221, 219, 186, 204, 220, 202, 203 49, 205, 207, 241, 239, 206, 224, 240, 222, 223 50, 207, 209, 243, 241, 208, 226, 242, 224, 225 51, 209, 211, 245, 243, 210, 228, 244, 226, 227 52, 211, 213, 247, 245, 212, 230, 246, 228, 229 53, 213, 215, 249, 247, 214, 232, 248, 230, 231 54, 215, 217, 251, 249, 216, 234, 250, 232, 233 55, 217, 219, 253, 251, 218, 236, 252, 234, 235 56, 219, 221, 255, 253, 220, 238, 254, 236, 237 57, 239, 241, 275, 273, 240, 258, 274, 256, 257 58, 241, 243, 277, 275, 242, 260, 276, 258, 259 59, 243, 245, 279, 277, 244, 262, 278, 260, 261 60, 245, 247, 281, 279, 246, 264, 280, 262, 263 61, 247, 249, 283, 281, 248, 266, 282, 264, 265 62, 249, 251, 285, 283, 250, 268, 284, 266, 267 63, 251, 253, 287, 285, 252, 270, 286, 268, 269 64, 253, 255, 289, 287, 254, 272, 288, 270, 271 *SHELL SECTION, ELSET=PID1, MATERIAL=MID1 12.5, 5 *MATERIAL, NAME=MID1 *ELASTIC, TYPE=ISO 6.4E+6, 0.3 *NSET,NSET=NODECENTER 145, *NSET,NSET=EDGE, GENERATE 1,17,1 17,289,17 1,273,17 273,289,1 *ELSET, ELSET=ESIDE1, GENERATE 1,8,1 *ELSET, ELSET=ESIDE2, GENERATE 8,64,8 *ELSET, ELSET=ESIDE3, GENERATE 57,64,1 *ELSET, ELSET=ESIDE4, GENERATE 1,57,8 *SURFACE, NAME=EDGE1 ESIDE1,E1 *SURFACE, NAME=EDGE2 ESIDE2,E2 *SURFACE, NAME=EDGE3 ESIDE3,E3 *SURFACE, NAME=EDGE4 ESIDE4,E4 *STEP, INC=1000, NLGEOM *STATIC,RIKS 0.01, 1., 1.E-5, 0.01, 1 *BOUNDARY, OP=NEW EDGE, 3,3, 0. NODECENTER, 1,2, 0. NODECENTER, 6,6, 0. *DSLOAD, FOLLOWER=NO, CONSTANT RESULTANT=YES EDGE1,EDLD,2.12E5,-1., 0., 0. EDGE2,EDLD,2.12E5, 0., 1., 0. EDGE3,EDLD,2.12E5, 1., 0., 0. EDGE4,EDLD,2.12E5, 0.,-1., 0. *OUTPUT,FIELD,FREQ=999 *NODE OUTPUT U, *OUTPUT,HISTORY,FREQ=1 *NODE OUTPUT,NSET=NODECENTER U, *NODE PRINT,FREQ=999,NSET=NODECENTER U3, *NODE FILE, FREQ=1,NSET=NODECENTER U, *EL PRINT,FREQ=0 *END STEP