*HEADING Extrusion Automatic stabilization of *Coupled temperature-displacement *RESTART,WRITE,FREQUENCY=50 *NODE 1,0.,0. 61,0.,.3 2001,.1,0. 2061,.1,.3 *NODE, NSET=NREF 99999, 0.5 , 0.0 *NGEN,NSET=AXIS 1,61,1 *NGEN,NSET=OUTSIDE 2001,2061,1 *NFILL,NSET=ALL AXIS,OUTSIDE,20,100 *ELEMENT,TYPE=CAX4T,ELSET=WORK 1,1,201,203,3 *ELGEN,ELSET=WORK 1,30,2,1,10,200,100 *ELSET,ELSET=BOT,GENERATE 1,901,100 *ELSET,ELSET=SIDE,GENERATE 901,930,1 *ELSET,ELSET=TOP,GENERATE 30,930,100 ** *** Node & element definitions for die ** *NODE, NSET=CONTACT 10001, 0.250000000, -0.180000000 10002, 0.250000000, -0.114444000 10003, 0.250000000, -0.048888900 10004, 0.250000000, 0.016666700 10005, 0.250000000, 0.082222200 10006, 0.250000000, 0.147778000 10007, 0.250000000, 0.213333000 10008, 0.250000000, 0.278889000 10009, 0.250000000, 0.344444000 10010, 0.250000000, 0.410000000 10011, 0.188867000, -0.180000000 10012, 0.189030000, -0.106122000 10013, 0.199098000, -0.041751700 10014, 0.199227000, 0.022784300 10015, 0.199356000, 0.087320200 10016, 0.199484000, 0.151856000 10017, 0.199613000, 0.216392000 10018, 0.199742000, 0.280928000 10019, 0.199871000, 0.345464000 10020, 0.200000000, 0.410000000 10021, 0.127733000, -0.180000000 10022, 0.127815000, -0.103061000 10023, 0.149548000, -0.045875800 10024, 0.149613000, 0.012106400 10025, 0.149677000, 0.070088700 10026, 0.149742000, 0.128071000 10027, 0.149806000, 0.186053000 10028, 0.149871000, 0.244035000 10029, 0.149935000, 0.302018000 10030, 0.149999000, 0.360000000 10031, 0.066600000, -0.180000000 10032, 0.066600000, -0.100000000 10033, 0.099999000, -0.050000000 10034, 0.099999000, 0.001428570 10035, 0.099999000, 0.052857100 10036, 0.099999000, 0.104286000 10037, 0.099999000, 0.155714000 10038, 0.099999000, 0.207143000 10039, 0.099999000, 0.258571000 10040, 0.099999000, 0.310000000 *ELEMENT, TYPE=CAX4T, ELSET=CONTACT 10001, 10001, 10002, 10012, 10011 10002, 10002, 10003, 10013, 10012 10003, 10003, 10004, 10014, 10013 10004, 10004, 10005, 10015, 10014 10005, 10005, 10006, 10016, 10015 10006, 10006, 10007, 10017, 10016 10007, 10007, 10008, 10018, 10017 10008, 10008, 10009, 10019, 10018 10009, 10009, 10010, 10020, 10019 10010, 10011, 10012, 10022, 10021 10011, 10012, 10013, 10023, 10022 10012, 10013, 10014, 10024, 10023 10013, 10014, 10015, 10025, 10024 10014, 10015, 10016, 10026, 10025 10015, 10016, 10017, 10027, 10026 10016, 10017, 10018, 10028, 10027 10017, 10018, 10019, 10029, 10028 10018, 10019, 10020, 10030, 10029 10019, 10021, 10022, 10032, 10031 10020, 10022, 10023, 10033, 10032 10021, 10023, 10024, 10034, 10033 10022, 10024, 10025, 10035, 10034 10023, 10025, 10026, 10036, 10035 10024, 10026, 10027, 10037, 10036 10025, 10027, 10028, 10038, 10037 10026, 10028, 10029, 10039, 10038 10027, 10029, 10030, 10040, 10039 *SOLID SECTION, ELSET=CONTACT, MATERIAL=RIG *RIGID BODY, ELSET=CONTACT, ISOTHERMAL=YES, REF NODE=99999 *SOLID SECTION,ELSET=WORK,MATERIAL=METAL *MATERIAL,NAME=METAL *ELASTIC 6.9E10,.33 *PLASTIC ** STRAIN RATE APPX .1 ** 60.E6,0.0 ,20. 90.E6,.125 ,20. 113.E6,.25 ,20. 124.E6,.375 ,20. 133.E6,0.5 ,20. 165.E6,1.0 ,20. 166.E6,2.0 ,20. 60.E6,0. ,50. 80.E6,.125 ,50. 97.E6,.25 ,50. 110.E6,.375 ,50. 120.E6,0.5 ,50. 150.E6,1.0 ,50. 151.E6,2.0 ,50. 50.E6,0.0 ,100. 65.E6,.125 ,100, 81.5E6,.25 ,100. 91.E6,.375 ,100. 100.E6,0.5 ,100. 125.E6,1.0 ,100. 126.E6,2.0 ,100. 45.E6,0.0 ,150. 63.E6,.125 ,150. 75.E6,.25 ,150. 89.E6,.5 ,150. 110.E6,1. ,150. 111.E6,2. ,150. *SPECIFIC HEAT 880., *DENSITY 2700., *CONDUCTIVITY 204.,0. 225.,300. *EXPANSION,ZERO=20.0 8.42E-5, *INELASTIC HEAT FRACTION .9, ** *** material properties are inconsequential *** for rigid elements *** *MATERIAL, NAME=RIG *ELASTIC 1.0E10,0.3 *SPECIFIC HEAT 880., *DENSITY 2700., *CONDUCTIVITY 204.,0. 225.,300. *EXPANSION,ZERO=20.0 8.42E-5, ** ** ** *NSET,NSET=TOP,GENERATE 61,2061,100 *NSET,NSET=ALL 1,2061,1 *INITIAL CONDITIONS,TYPE=TEMPERATURE ALL,20. ** *** surface definitions *** ** *ELSET, ELSET=INDIE, GEN 10019,10027,1 *ELSET, ELSET=BOTDIE, GEN 10001,10019,9 *SURFACE, NAME=RIGID, TYPE=ELEMENT INDIE, S3 BOTDIE,S4 *SURFACE, NAME=DEF1, TYPE=ELEMENT SIDE, S2 *SURFACE, NAME=DEF2, TYPE=ELEMENT BOT, S1 ** *** Interaction definitions ** *SURFACE INTERACTION, NAME=INTER *FRICTION 0.1 *GAP HEAT GENERATION 1.0, ** *** Contact pair definitions ** *CONTACT PAIR, INTERACTION=INTER, SMOOTH=0.48 DEF1, RIGID DEF2, RIGID ** *** elset for output purposes ** *ELSET,ELSET=EFILEOUT BOT,SIDE,TOP ** *** step 1 ** *STEP,AMPLITUDE=RAMP,NLGEOM, UNSYMM=YES STABILIZE WORKPIECE INSIDE DIE *COUPLED TEMPERATURE-DISPLACEMENT,DELTMX=100., STABILIZE=2.E-5 .1,1. *BOUNDARY NREF, 1, 2, 0.0 NREF, 6, 6, 0.0 NREF,11,11,20.0 AXIS,1,1,0.0 TOP,2,2,-.000125 ALL,11,11,20.0 *OUTPUT, FIELD, FREQ=10 *NODE OUTPUT U RF NT RFL *ENERGY PRINT *END STEP ** *** step 2 ** *STEP,INC=800,AMPLITUDE=RAMP,NLGEOM, UNSYMM=YES EXTRUSION *COUPLED TEMPERATURE-DISPLACEMENT,DELTMX=100., STABILIZE=2.E-5 .1,10. *BOUNDARY,OP=NEW NREF, 1, 2, 0.0 NREF, 6, 6, 0.0 NREF, 11,11,20.0 AXIS,1,1,0.0 TOP,2,2,-.25 *PRINT,CONTACT=YES *NSET,NSET=NFILEOUT AXIS,OUTSIDE,TOP *OUTPUT, FIELD, FREQ=10 *NODE OUTPUT U RF NT RFL *ENERGY OUTPUT *END STEP ** *** step 3 ** *STEP,INC=200,AMPLITUDE=RAMP,NLGEOM, UNSYMM=YES REMOVE CONTACT PAIRS *COUPLED TEMPERATURE-DISPLACEMENT,DELTMX=100., STABILIZE=2.E-5 .1,.1, *MODEL CHANGE,REMOVE, TYPE=CONTACT PAIR DEF1, RIGID DEF2, RIGID *OUTPUT, FIELD, FREQ=10 *NODE OUTPUT U RF NT RFL *ENERGY OUTPUT *END STEP ** *** step 4 ** *STEP,INC=200,AMPLITUDE=RAMP,NLGEOM, UNSYMM=YES LET WORKPIECE COOL DOWN *COUPLED TEMPERATURE-DISPLACEMENT,DELTMX=100., STABILIZE=2.E-5 100.,10000., *FILM BOT,F1,20.,10. TOP,F3,20.,10. SIDE,F2,20.,10. *OUTPUT, FIELD, FREQ=10 *NODE OUTPUT U RF NT RFL *ENERGY OUTPUT *OUTPUT, FIELD, FREQ=9999 S,E PE, *END STEP