*HEADING 2D Draw Bending problem for Numisheet'93 - Explicit analysis Punch velocity 30m/s ** Analysis using the general contact capability ** *PREPRINT, CONTACT=YES, MODEL=YES, HISTORY=YES ** ** BLANK *NODE 1, 0.000, 0.000 351, 0.175, 0.000 1001, 0.000, 0.005 1351, 0.175, 0.005 *NGEN,NSET=BLANK 1, 351, 1 1001,1351, 1 *NSET,NSET=CENTER 1, 1001 *ELEMENT,TYPE=S4R 1, 1, 3, 1003, 1001 *ELGEN,ELSET=BLANK 1, 175, 2, 2 *SHELL SECTION,ELSET=BLANK,MATERIAL=STEEL 0.00078, 5 *MATERIAL,NAME=STEEL *ELASTIC 206.E9, 0.3 *PLASTIC 0.16700E+09, 0.00000E+00 0.19410E+09, 0.10000E-01 0.21913E+09, 0.20000E-01 0.23803E+09, 0.30000E-01 0.25348E+09, 0.40000E-01 0.26668E+09, 0.50000E-01 0.27826E+09, 0.60000E-01 0.28864E+09, 0.70000E-01 0.29807E+09, 0.80000E-01 0.30674E+09, 0.90000E-01 0.31477E+09, 0.10000E+00 0.32226E+09, 0.11000E+00 0.32930E+09, 0.12000E+00 0.33594E+09, 0.13000E+00 0.34224E+09, 0.14000E+00 0.34822E+09, 0.15000E+00 0.35393E+09, 0.16000E+00 0.35940E+09, 0.17000E+00 0.36464E+09, 0.18000E+00 0.36968E+09, 0.19000E+00 0.37454E+09, 0.20000E+00 0.37922E+09, 0.21000E+00 0.38375E+09, 0.22000E+00 0.38814E+09, 0.23000E+00 0.39239E+09, 0.24000E+00 0.39652E+09, 0.25000E+00 0.40053E+09, 0.26000E+00 0.40443E+09, 0.27000E+00 0.40822E+09, 0.28000E+00 0.41193E+09, 0.29000E+00 0.41554E+09, 0.30000E+00 0.41906E+09, 0.31000E+00 0.42251E+09, 0.32000E+00 0.42588E+09, 0.33000E+00 0.42917E+09, 0.34000E+00 0.43240E+09, 0.35000E+00 0.43556E+09, 0.36000E+00 0.43866E+09, 0.37000E+00 0.44169E+09, 0.38000E+00 0.44468E+09, 0.39000E+00 0.44760E+09, 0.40000E+00 0.45047E+09, 0.41000E+00 0.45330E+09, 0.42000E+00 0.45607E+09, 0.43000E+00 0.45880E+09, 0.44000E+00 0.46148E+09, 0.45000E+00 0.46413E+09, 0.46000E+00 0.46672E+09, 0.47000E+00 0.46928E+09, 0.48000E+00 0.47181E+09, 0.49000E+00 0.47429E+09, 0.50000E+00 *POTENTIAL 1., 1.0402, 1.24897, 1.07895, 1., 1. *DENSITY 7800., ** ** DIE *NODE 2000, 0.026, 0.0025, -0.080 *NODE, NSET=DIE 2001, 0.026, -0.001, -0.080 2002, 0.026, -0.001, -0.00539 2008, 0.031, -0.001, -0.00039 2009, 0.180, -0.001, -0.00039 *NGEN, NSET=DIE, LINE=C 2002, 2008, 1, , 0.031, -0.001, -0.00539 *NCOPY, CHANGE=100, OLD=DIE, NEW=DIE, SHIFT 0.0, 0.007 *ELEMENT, TYPE=R3D4 2001, 2001, 2002, 2102, 2101 *ELGEN, ELSET=DIE 2001, 8, 1, 1 *RIGID BODY, ELSET=DIE, REF NODE=2000 ** ** PUNCH *NODE 3000, 0.000, 0.0025, 0.001 *NODE, NSET=PUNCH 3001, 0.000, -0.001, 0.001 3002, 0.020, -0.001, 0.001 3008, 0.025, -0.001, 0.006 3009, 0.025, -0.001, 0.081 *NGEN, NSET=PUNCH, LINE=C 3002, 3008, 1, , 0.02, -0.001, 0.006 *NCOPY, CHANGE=100, OLD=PUNCH, NEW=PUNCH, SHIFT 0.0, 0.007 *ELEMENT, TYPE=R3D4 3001, 3001, 3002, 3102, 3101 *ELGEN, ELSET=PUNCH 3001, 8, 1, 1 *RIGID BODY, ELSET=PUNCH, REF NODE=3000 ** ** HOLDER *NODE 4000, 0.0585, 0.0025, 0.010 *NODE, NSET=HOLDER 4001, 0.031, -0.001, 0.010 4002, 0.031, -0.001, 0.00039 4003, 0.081, -0.001, 0.00039 4009, 0.086, -0.001, 0.00539 *NGEN, NSET=HOLDER, LINE=C 4003, 4009, 1, , 0.081, -0.001, 0.00539 *NCOPY, OLD=HOLDER, NEW=HOLDER, CHANGE=100, SHIFT 0, 0.007 *ELEMENT, TYPE=R3D4 4001, 4001, 4002, 4102, 4101 *ELGEN, ELSET=HOLDER 4001, 8, 1, 1 *RIGID BODY, ELSET=HOLDER, REF NODE=4000 ** *ELEMENT,TYPE=MASS,ELSET=EMASS 1000, 4000 *MASS,ELSET=EMASS 2.5e-2, ** ** BOUNDARY CONDITIONS *BOUNDARY CENTER, 1, 1 CENTER, 5, 5 BLANK, 2, 2 BLANK, 4, 4 BLANK, 6, 6 2000, 1, 6 3000, 1, 6 4000, 1, 2 4000, 4, 6 ** *AMPLITUDE,NAME=APUNCH, DEFINITION=SMOOTH STEP 0.,0., 0.00233333333, 1., 0.004666666667, 0. *AMPLITUDE,NAME=SMOOTH, DEFINITION=SMOOTH STEP 0.0, 0.0, 0.001, 1.0 *ELSET,ELSET=QA_TEST 57, 151 *NSET,NSET=QA_TEST 20, 57, 2000, 3000 ** ** GENERAL CONTACT DEFINITION ** *CONTACT *CONTACT INCLUSIONS, ALL ELEMENT BASED *CONTACT PROPERTY ASSIGNMENT , , CONTACT *SURFACE INTERACTION,NAME=CONTACT *FRICTION 0.144, ** ** APPLY BLANKHOLDER FORCE ** *STEP *DYNAMIC,EXPLICIT ,0.001 *CLOAD,AMPLITUDE=SMOOTH 4000, 3, -175.0 ** *RESTART,WRITE,NUMBER INTERVAL=1 ** *FILE OUTPUT,NUMBER INTERVAL=1 *EL FILE,ELSET=QA_TEST PEEQ, STH, *NODE FILE, NSET=QA_TEST COORD, *OUTPUT,FIELD,NUMBER INTERVAL=2 *ELEMENT OUTPUT PEEQ, STH *NODE OUTPUT,VAR=PRESELECT *OUTPUT,FIELD,NUMBER INTERVAL=1 *ELEMENT OUTPUT,ELSET=QA_TEST PEEQ,STH *NODE OUTPUT,NSET=QA_TEST COORD, *END STEP ** ** MOVE PUNCH DOWN ** *STEP *DYNAMIC,EXPLICIT ,0.004666666667 *BOUNDARY,AMPLITUDE=APUNCH,TYPE=VELOCITY 3000,3,3,-30.0 *RESTART,WRITE,NUMBER INTERVAL=1 *OUTPUT,HISTORY,TIME INTERVAL=0.0001,VARIABLE=PRESELECT,OP=NEW *END STEP