** connector friction tests for TRANSLATOR
**   -PREDEFINED + PRESTRESS
**   -CUSTOMIZED + PRESTRESS
** results should be identical between the two connector elements
**------------------------------------------------
*preprint, model=yes
*parameter 
Rr   = 0.12
L    = 0.65
f1   = 1.0/Rr
f2   = 1.0
f3   = 2.0/L
**------------------------------------------------
*Node,nset = all
101,0,0,0
102,1,0,0
201,2,0,0
202,3,0,0
*orientation,name=global
1,0,0, 0,1,0
3,0.0
**-------------------------------------------------
*element,type=mass,elset=mass
10001,101
10002,102
20001,201
20002,202
*mass,elset=mass
1.0,
*element,type=rotaryI,elset=rotaryI
110001,101
110002,102
120001,201
120002,202
*rotary inertia,elset=rotaryI
1.0,1.0,1.0
**-------------------------------------------------
*element,type=conn3d2,elset=tranPredef
1001,101,102
*connector section,elset=tranPredef,behavior=fricPredef
translator,
global,global
**-------
*connector behavior,name=fricPredef
*connector elastic,comp=1
12.0,
*connector friction,predefined
<Rr>,<L>,1.25
*friction
0.1,
**--------------------------------------------------
*element,type=conn3d2,elset=tranCustom
2001,201,202
*connector section,elset=tranCustom,behavior=fricCustom
translator,
global,global
**-------
*connector behavior,name=fricCustom
*connector elastic,comp=1
12.0,
*connector derived component,name=norm1
4,
<f1>,
*connector derived component,name=norm1
2,3
<f2>,<f2>
*connector derived component,name=norm1
5,6
<f3>,<f3>,
*connector friction,contact force=norm1,component=1
1.25, 0.0
1.20, 1.0
*friction
0.1,
**--------------------------------------------------
*boundary
101,1,6
201,1,6
*elset,elset=conn
 tranPredef,tranCustom
*amplitude,name=backforth
0,0,  0.6, 0.6, 1.0,0.2
*amplitude,name=step
0,1,1,1
**--------------------------------------------------
*initial conditions, type=vel
102,1,1.0
202,2,1.0
*step
*dynamic, explicit, direct user control
1.0E-04, 1.0
*cload,amplitude=step
**load that creates constraint forces
102,2,11.0
102,3,12.0
102,5,1.0
102,6,2.0
202,2,11.0
202,3,12.0
202,5,1.0
202,6,2.0
*boundary,type=vel,amplitude=backforth
102,1,1,1.0
202,1,1,1.0
*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-05, 1.0
*cload,amplitude=step
**load that creates constraint forces
102,2,11.0
102,3,12.0
102,5,1.0
102,6,2.0
202,2,11.0
202,3,12.0
202,5,1.0
202,6,2.0
*cload
102,1,20.0
202,1,20.0
*boundary,op=new
101,1,6
201,1,6
*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
**--------------------------------------------------