*Heading Inertia relief analysis with pre-tension, uniform pressure loading for CAX4 elements ** Job name: a1 Model name: Model-1 ** PARTS ** *Part, name=Part-1 *End Part ** ** ASSEMBLY ** *Assembly, name=Assembly ** *Instance, name=Part-1-1, part=Part-1 *Node 1, 7., -1.4 2, 2., -1.4 3, 2., -1.5 4, 7., -1.5 5, 2., -4.5 6, 7., -4.5 7, 7., 5.5 8, 2., 5.5 9, 6., -1.4 10, 5., -1.4 11, 4., -1.4 12, 3., -1.4 13, 3., -1.5 14, 4., -1.5 15, 5., -1.5 16, 6., -1.5 17, 2., -2.5 18, 2., -3.5 19, 3., -4.5 20, 4., -4.5 21, 5., -4.5 22, 6., -4.5 23, 7., -3.5 24, 7., -2.5 25, 7., -0.4142857 26, 7., 0.5714286 27, 7., 1.557143 28, 7., 2.542857 29, 7., 3.528571 30, 7., 4.514286 31, 6., 5.5 32, 5., 5.5 33, 4., 5.5 34, 3., 5.5 35, 2., 4.514286 36, 2., 3.528571 37, 2., 2.542857 38, 2., 1.557143 39, 2., 0.5714286 40, 2., -0.4142857 41, 6., -2.5 42, 5., -2.5 43, 4., -2.5 44, 3., -2.5 45, 6., -3.5 46, 5., -3.5 47, 4., -3.5 48, 3., -3.5 49, 3., -0.4142857 50, 4., -0.4142857 51, 5., -0.4142857 52, 6., -0.4142857 53, 3., 0.5714286 54, 4., 0.5714286 55, 5., 0.5714286 56, 6., 0.5714286 57, 3., 1.557143 58, 4., 1.557143 59, 5., 1.557143 60, 6., 1.557143 61, 3., 2.542857 62, 4., 2.542857 63, 5., 2.542857 64, 6., 2.542857 65, 3., 3.528571 66, 4., 3.528571 67, 5., 3.528571 68, 6., 3.528571 69, 3., 4.514286 70, 4., 4.514286 71, 5., 4.514286 72, 6., 4.514286 *Element, type=CAX4 1, 1, 9, 16, 4 2, 9, 10, 15, 16 3, 10, 11, 14, 15 4, 11, 12, 13, 14 5, 12, 2, 3, 13 6, 4, 16, 41, 24 7, 16, 15, 42, 41 8, 15, 14, 43, 42 9, 14, 13, 44, 43 10, 13, 3, 17, 44 11, 24, 41, 45, 23 12, 41, 42, 46, 45 13, 42, 43, 47, 46 14, 43, 44, 48, 47 15, 44, 17, 18, 48 16, 23, 45, 22, 6 17, 45, 46, 21, 22 18, 46, 47, 20, 21 19, 47, 48, 19, 20 20, 48, 18, 5, 19 21, 2, 12, 49, 40 22, 12, 11, 50, 49 23, 11, 10, 51, 50 24, 10, 9, 52, 51 25, 9, 1, 25, 52 26, 40, 49, 53, 39 27, 49, 50, 54, 53 28, 50, 51, 55, 54 29, 51, 52, 56, 55 30, 52, 25, 26, 56 31, 39, 53, 57, 38 32, 53, 54, 58, 57 33, 54, 55, 59, 58 34, 55, 56, 60, 59 35, 56, 26, 27, 60 36, 38, 57, 61, 37 37, 57, 58, 62, 61 38, 58, 59, 63, 62 39, 59, 60, 64, 63 40, 60, 27, 28, 64 41, 37, 61, 65, 36 42, 61, 62, 66, 65 43, 62, 63, 67, 66 44, 63, 64, 68, 67 45, 64, 28, 29, 68 46, 36, 65, 69, 35 47, 65, 66, 70, 69 48, 66, 67, 71, 70 49, 67, 68, 72, 71 50, 68, 29, 30, 72 51, 35, 69, 34, 8 52, 69, 70, 33, 34 53, 70, 71, 32, 33 54, 71, 72, 31, 32 55, 72, 30, 7, 31 ** Region: (Rocket:Picked) *Elset, elset=_I1, internal 1, 2, 3, 4, 5, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 48, 49, 50, 51, 52, 53, 54, 55 ** Section: Rocket *Solid Section, elset=_I1, material=Aluminum 1., ** Region: (engine:Picked) *Elset, elset=_I2, internal, generate 6, 20, 1 ** Section: engine *Solid Section, elset=_I2, material=Compo 1., *Node 73, 0., 0., 0. *Nset, nset=_pre-tension_blrn_, internal 73, *End Instance *Nset, nset=bc_bot_1, instance=Part-1-1 5, *Nset, nset=bc_bot_2, instance=Part-1-1 6, *Nset, nset=bc_top, instance=Part-1-1 7, 8 *Nset, nset=BC, instance=Part-1-1 5,6,7,8 *Nset, nset=NALL, instance=Part-1-1, generate 1, 72, 1 *Elset, elset=EALL, instance=Part-1-1, generate 1, 55, 1 *Elset, elset=EOUT, instance=Part-1-1 10, *Nset, nset=rocket, instance=Part-1-1 1, 2, 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 25, 26 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 49, 50 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66 67, 68, 69, 70, 71, 72 *Elset, elset=rocket, instance=Part-1-1 1, 2, 3, 4, 5, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 48, 49, 50, 51, 52, 53, 54, 55 *Nset, nset=engine, instance=Part-1-1 3, 4, 5, 6, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 41, 42, 43, 44, 45, 46, 47, 48 *Elset, elset=engine, instance=Part-1-1, generate 6, 20, 1 *Elset, elset=_pressure_S2, internal, instance=Part-1-1, generate 10, 20, 5 *Elset, elset=_pressure_S3, internal, instance=Part-1-1, generate 16, 20, 1 *Elset, elset=_pressure_S4, internal, instance=Part-1-1, generate 6, 16, 5 *Surface, type=ELEMENT, name=pressure _pressure_S2, S2 _pressure_S3, S3 _pressure_S4, S4 *Elset, elset=__Surf13_S1, internal, instance=Part-1-1, generate 21, 25, 1 *Surface, type=ELEMENT, name=_Surf13, internal __Surf13_S1, S1 ** Pre-Tension Section for Bolt Load: pre-tension *Pre-tension Section, surface= _Surf13, node=Part-1-1.73 0., -1., 0. *End Assembly ** ** MATERIALS ** *Material, name=Aluminum *Density 7800., *Elastic 200e+09, 0.3 *Material, name=Compo *Density 7000., *PLASTIC 380E+6,0 *Elastic 700e+07, 0.3 ** ---------------------------------------------------------------- ** ** STEP: Pretension ** *Step, name=Pretension,NLGEOM Pre-tension bolt loading *Static, direct 0.1, 1., ** ** BOUNDARY CONDITIONS ** ** Name: BC-1 Type: Displacement/Rotation *Boundary bc_bot_1, 1, 1 bc_bot_1, 2, 2 *Boundary bc_bot_2, 2, 2 *Boundary bc_top, 2, 2 ** Name: pre-tension Type: Bolt load *Cload Part-1-1._pre-tension_blrn_, 1, 1000.0 ** ** LOADS ** ** Name: grav-rocket Type: Gravity *Dload rocket, GRAV, 9.81, , -1. ** Name: grv-engine Type: Gravity *Dload engine, GRAV, 9.81, , -1. *Output, field, variable=PRESELECT *Output, history, variable=PRESELECT *End Step ** STEP: Pressureload ** *Step, name=Pressure-load,NLGEOM Unifrom Pressure load from inside engine wall *Static 0.1, 1., ** ** LOADS ** *Boundary,op=new bc_bot_1, 1, 1 bc_bot_1, 2, 2 *Boundary,op=new bc_bot_2, 2, 2 *Boundary, op=NEW ** Name: Load-1 Type: Bolt load *Cload,op=new *Boundary,op=new,fixed Part-1-1._pre-tension_blrn_,1,1 ** Name: pressure Type: Pressure *Dsload pressure, P, -10. *Output, field, variable=PRESELECT *Output, history, variable=PRESELECT *End Step ** STEP: Inertia Relief ** *Step, name=Inertia Relief Inertia Relief analysis *Static, direct 0.1, 1., *Inertia Relief *Output, field, variable=PRESELECT *NODE PRINT,TOTALS=YES,nset=BC RF U **EL PRINT,ELSET=EALL **S **E **IRX **IRA,IRF **IRRI,IRMASS *OUTPUT,HISTORY *ELEMENT OUTPUT,ELSET=EOUT S E IRX IRA,IRF IRRI,IRMASS *End Step