** connector friction tests for CARTESIAN + FLEXION-TORSION ** CUSTOMIZED + PRESTRESS ** the f1 and f2 factors are computed in the same fashion as for CYLINDRICAL **------------------------------------------------ *preprint, model=yes *parameter dR = 1.0 dL = 0.55 f1 = 1.0 f2 = 2.0/dL **------------------------------------------------ *Node,nset = all 101,1,0,0 102,1,0,0 *orientation,name=global 1,0,0, 0,1,0 3,0.0 **------------------------------------------------- *element,type=mass,elset=mass 10001,101 10002,102 *mass,elset=mass 1.0, *element,type=rotaryI,elset=rotaryI 110001,101 110002,102 *rotary inertia,elset=rotaryI 1.0,1.0,1.0 **------------------------------------------------- *element,type=conn3d2,elset=bushCustom 1001,101,102 *connector section,elset=bushCustom,behavior=fricCustom cartesian,flexion-torsion global,global **------- *connector behavior,name=fricCustom *connector elastic,comp=1 1.0, *connector elastic,comp=2 10.0, *connector elastic,comp=3 10.0, *connector elastic,comp=4 1.0, *connector elastic,comp=5 12.0, *connector elastic,comp=6 12.0, *connector derived component, name=norm2356 2,3 , *connector derived component, name=norm2356 5,6 , *connector friction,contact force=norm2356, indep=const 1 1.25,0.0 1.26,0.45 *connector potential 1, 2, 3, 4, 5, 6, *friction 0.15, **-------------------------------------------------- *boundary 101,1,6 *elset,elset=conn bushCustom, *amplitude,name=step 0,1,1,1 **-------------------------------------------------- *step *dynamic, explicit, direct user control 1.0E-04, 1.0 *boundary, op=new 101,1,6 *connector load 1001,1,1.0 1001,2,1.0 1001,3,1.0 1001,4,1.0 1001,5,1.0 1001,6,1.0 *OUTPUT, FIELD, NUMBER INTERVAL=5 *NODE OUTPUT,nset=all U, *OUTPUT,HISTORY *NODE OUTPUT,nset=all U, *ELEMENT OUTPUT,elset=conn CU,CASU,CEF,CSF,CTF,CNF,CSF *ENERGY OUTPUT,VARIABLE=ALL *end step **-------------------------------------------------- *step *dynamic, explicit, direct user control 1.0E-04, 1.0 *boundary, op=new 101,1,6 *cload 102,1,10.0 102,2,11.0 102,4,12.0 102,5,1.0 *OUTPUT, FIELD, NUMBER INTERVAL=5 *NODE OUTPUT,nset=all U, *OUTPUT,HISTORY *NODE OUTPUT,nset=all U, *ELEMENT OUTPUT,elset=conn CU,CASU,CEF,CSF,CTF,CNF,CSF *ENERGY OUTPUT,VARIABLE=ALL *end step **--------------------------------------------------