1( 2 Taylor bar 3 A bar of radius 3.2 mm and length of 32.4mm is modeled with 250 elements. 4 Units : 5 length: m 6 Force : N 7 Mass : kg 8 time : sec 9 Stress: Pa 10 11 radius 3.2mm , length 32.4mm , Vo=227 m/s 12 material E= 117e9 Pa, nu=0.35, Yield= 0.4e9 Pa, Hardening modulus=0.1e9 Pa 13 hardening param beta=1., density 8930 kg/m^3 14 15 Final flared radius : 7.49mm tochnog 7.13mm dyna2d 7.28mm nike2d 16 Final length : 21.55mm tochnog 21.47 dyna2d 21.17 nike2d 17 Max total strain at 0,0 : 3.0 mm/mm tochnog, 3.05 mm/mm dyna2d 3.18 NIKE2D 18 Ref: NIKE2D.pdf [ available from : 19 http://www.llnl.gov/eng/mdg/Codes/NIKE2D/body_nike2d.html ] 20 21 Osman Buyukisik osman@fuse.net 22) 23 24echo -no 25number_of_space_dimensions 2 26materi_velocity 27materi_stress 28materi_strain_plasti 29materi_strain_total 30materi_velocity_integrated 31materi_plasti_kappa 32end_initia 33 34options_stabilization -none 35 36geometry_line 1 0.0 0.0 3.2e-3 0.0 1e-6 37geometry_line 2 0.0 0.0 0.0 32.4e-3 1e-6 38 39bounda_unknown 0 -geometry_line 1 -vely 40bounda_time 0 0.0 0.0 100.00 0.0 41bounda_unknown 1 -geometry_line 2 -velx 42bounda_time 1 0.0 0.0 100.00 0.0 43 44( material props ) 45group_type 0 -materi 46group_integration_points 0 -minimal 47group_materi_elasti_young 0 117.0e9 48group_materi_elasti_poisson 0 0.35 49group_materi_density 0 8930.0 50group_materi_plasti_vonmises 0 0.4e9 51dependency_item 1 -group_materi_plasti_vonmises 0 -kap 2 52dependency_diagram 1 0. 1. 0.4e9 0.5e9 53group_axisymmetric 0 -yes 54 55control_mesh_macro 0 -rectangle 0 6 51 56control_mesh_macro_parameters 0 1.6e-3 16.2e-3 3.2e-3 32.4e-3 57 58( initial velocity ) 59control_data_put 1 -node_dof -all 60control_data_put_double 1 0. -227.0 (Vx and Vy ) 61 0. 0. 0. 0. 0. 0. ( stress ) 62 0. 0. 0. 0. 0. 0. ( plas strain ) 63 0. 0. 0. 0. 0. 0. ( totl strain ) 64 0. 0. ( displ ) 65 0. ( kappa ) 66 67post_point 1 0.0 0.0 ( for max strain ) 68post_point 2 0.0032 0.0 ( for flare ) 69post_point 3 0.0 0.0324 ( for length ) 70 71control_timestep 5 1.e-7 80.0e-6 72control_timestep_iterations_automatic 5 0.0001 1.0e-6 73 74( 75control_print_data_versus_data 5 -time_current 0 0 76 -post_point_dof 1 -eptyy ( max strain ) 77 -post_point_dof 3 -veliy ( for length ) 78 -post_point_dof 2 -velix ( for flare ) 79) 80 81target_item 0 -node_dof 1 -kap 82target_value 0 2.58442 1.e-2 83end_data 84