*HEADING
 CONNECTOR PLASTICITY/DAMAGE BEHAVIOR IN LINEAR DYNAMICS PROCEDURES 
 /STANDARD VERIFICATION, 3D CONNECTORS
**
*NODE, NSET=NALL
 1,0.0,0.0,
 2,1.0,0.0,
 4,3.0,0.0,
*NSET, NSET=FIXED
 1,4
*NSET, NSET=RF
2
**
** CONNECTOR ELEMENTS
**
*ELEMENT, TYPE=CONN3D2, ELSET=ROT
 1,1,2
*ELEMENT, TYPE=CONN3D2, ELSET=ACTUATOR 
 3,2,4
*ELSET, ELSET=CONNECTORS
 ROT,ACTUATOR
**
** ROTARY INERTIA
**
*ELEMENT, TYPE=ROTARYI, ELSET=ROTARY
 1001,1
 1002,2
 1004,4
**
** SECTION DEFINITIONS
**
*ROTARY INERTIA, ELSET=ROTARY
 1.0,1.0,1.0
*CONNECTOR SECTION, ELSET=ROT, BEHAVIOR=CB_ROT
 CARDAN
 GLOBAL,
*CONNECTOR SECTION, ELSET=ACTUATOR
 CARDAN
 GLOBAL,
*ORIENTATION, NAME=GLOBAL
 1.0,0.0,0.0,0.0,1.0,0.0
3,0
**
** CONNECTOR BEHAVIOR DEFINITIONS
**
*CONNECTOR BEHAVIOR, NAME=CB_ROT
*CONNECTOR ELASTICITY, COMPONENT=6
100,
*CONNECTOR DAMAGE INITIATION, CRITERION=MOTION, COMPONENT=6
-1.0,1.0
*CONNECTOR DAMAGE EVOLUTION, TYPE=MOTION, SOFTENING=TABULAR
1.0,-1.0
0.0,0.0
1.0,1.0
**
*AMPLITUDE,NAME=AMP
0.00000E+000,  0.00000E+000,1.00000E-002,  -1.00000E+000,2.00000E-002,  -2.00000E+000,3.00000E-002,  -3.00000E+000,
4.00000E-002,  -4.00000E+000,5.00000E-002,  -5.00000E+000,6.00000E-002,  -6.00000E+000,7.00000E-002,  -7.00000E+000,
8.00000E-002,  -8.00000E+000,9.00000E-002,  -9.00000E+000,1.00000E-001,  -1.00000E+001,1.10000E-001,  -1.10000E+001,
1.20000E-001,  -1.20000E+001,1.30000E-001,  -1.30000E+001,1.40000E-001,  -1.40000E+001,1.50000E-001,  -1.50000E+001,
1.60000E-001,  -1.60000E+001,1.70000E-001,  -1.70000E+001,1.80000E-001,  -1.80000E+001,1.90000E-001,  -1.90000E+001,
2.00000E-001,  -2.00000E+001,2.10000E-001,  -2.10000E+001,2.20000E-001,  -2.20000E+001,2.30000E-001,  -2.30000E+001,
2.40000E-001,  -2.40000E+001,2.50000E-001,  -2.50000E+001,2.60000E-001,  -2.60000E+001,2.70000E-001,  -2.70000E+001,
2.80000E-001,  -2.80000E+001,2.90000E-001,  -2.90000E+001,3.00000E-001,  -3.00000E+001,3.10000E-001,  -3.10000E+001,
3.20000E-001,  -3.20000E+001,3.30000E-001,  -3.30000E+001,3.40000E-001,  -3.40000E+001,3.50000E-001,  -3.50000E+001,
3.60000E-001,  -3.60000E+001,3.70000E-001,  -3.70000E+001,3.80000E-001,  -3.80000E+001,3.90000E-001,  -3.90000E+001,
4.00000E-001,  -4.00000E+001,4.10000E-001,  -4.10000E+001,4.20000E-001,  -4.20000E+001,4.30000E-001,  -4.30000E+001,
4.40000E-001,  -4.40000E+001,4.50000E-001,  -4.50000E+001,4.60000E-001,  -4.60000E+001,4.70000E-001,  -4.70000E+001,
4.80000E-001,  -4.80000E+001,4.90000E-001,  -4.90000E+001,5.00000E-001,  -5.00000E+001,5.10000E-001,  -5.10000E+001,
5.20000E-001,  -5.20000E+001,5.30000E-001,  -5.30000E+001,5.40000E-001,  -5.40000E+001,5.50000E-001,  -5.50000E+001,
5.60000E-001,  -5.60000E+001,5.70000E-001,  -5.70000E+001,5.80000E-001,  -5.80000E+001,5.90000E-001,  -5.90000E+001,
6.00000E-001,  -6.00000E+001,6.10000E-001,  -6.10000E+001,6.20000E-001,  -6.20000E+001,6.30000E-001,  -6.30000E+001,
6.40000E-001,  -6.40000E+001,6.50000E-001,  -6.50000E+001,6.60000E-001,  -6.60000E+001,6.70000E-001,  -6.70000E+001,
6.80000E-001,  -6.80000E+001,6.90000E-001,  -6.90000E+001,7.00000E-001,  -7.00000E+001,7.10000E-001,  -7.10000E+001,
7.20000E-001,  -7.20000E+001,7.30000E-001,  -7.30000E+001,7.40000E-001,  -7.40000E+001,7.50000E-001,  -7.50000E+001,
7.60000E-001,  -7.60000E+001,7.70000E-001,  -7.70000E+001,7.80000E-001,  -7.80000E+001,7.90000E-001,  -7.90000E+001,
8.00000E-001,  -8.00000E+001,8.10000E-001,  -8.10000E+001,8.20000E-001,  -8.20000E+001,8.30000E-001,  -8.30000E+001,
8.40000E-001,  -8.40000E+001,8.50000E-001,  -8.50000E+001,8.60000E-001,  -8.60000E+001,8.70000E-001,  -8.70000E+001,
8.80000E-001,  -8.80000E+001,8.90000E-001,  -8.90000E+001,9.00000E-001,  -9.00000E+001,9.10000E-001,  -9.10000E+001,
9.20000E-001,  -9.20000E+001,9.30000E-001,  -9.30000E+001,9.40000E-001,  -9.40000E+001,9.50000E-001,  -9.50000E+001,
9.60000E-001,  -9.60000E+001,9.70000E-001,  -9.70000E+001,9.80000E-001,  -9.80000E+001,9.90000E-001,  -9.90000E+001,
1.00000E+000,  -1.00000E+002,1.01000E+000,  -9.99900E+001,1.02000E+000,  -9.99600E+001,1.03000E+000,  -9.99100E+001,
1.04000E+000,  -9.98400E+001,1.05000E+000,  -9.97500E+001,1.06000E+000,  -9.96400E+001,1.07000E+000,  -9.95100E+001,
1.08000E+000,  -9.93600E+001,1.09000E+000,  -9.91900E+001,1.10000E+000,  -9.90000E+001,1.11000E+000,  -9.87900E+001,
1.12000E+000,  -9.85600E+001,1.13000E+000,  -9.83100E+001,1.14000E+000,  -9.80400E+001,1.15000E+000,  -9.77500E+001,
1.16000E+000,  -9.74400E+001,1.17000E+000,  -9.71100E+001,1.18000E+000,  -9.67600E+001,1.19000E+000,  -9.63900E+001,
1.20000E+000,  -9.60000E+001,1.21000E+000,  -9.55900E+001,1.22000E+000,  -9.51600E+001,1.23000E+000,  -9.47100E+001,
1.24000E+000,  -9.42400E+001,1.25000E+000,  -9.37500E+001,1.26000E+000,  -9.32400E+001,1.27000E+000,  -9.27100E+001,
1.28000E+000,  -9.21600E+001,1.29000E+000,  -9.15900E+001,1.30000E+000,  -9.10000E+001,1.31000E+000,  -9.03900E+001,
1.32000E+000,  -8.97600E+001,1.33000E+000,  -8.91100E+001,1.34000E+000,  -8.84400E+001,1.35000E+000,  -8.77500E+001,
1.36000E+000,  -8.70400E+001,1.37000E+000,  -8.63100E+001,1.38000E+000,  -8.55600E+001,1.39000E+000,  -8.47900E+001,
1.40000E+000,  -8.40000E+001,1.41000E+000,  -8.31900E+001,1.42000E+000,  -8.23600E+001,1.43000E+000,  -8.15100E+001,
1.44000E+000,  -8.06400E+001,1.45000E+000,  -7.97500E+001,1.46000E+000,  -7.88400E+001,1.47000E+000,  -7.79100E+001,
1.48000E+000,  -7.69600E+001,1.49000E+000,  -7.59900E+001,1.50000E+000,  -7.50000E+001
** BOUNDARY CONSTRAINTS (BASE STATE)
**
*BOUNDARY
 NALL,1,5
 FIXED,6,6
**
**
*STEP
 STEP-1: OBTAIN NATURAL MODES OF THE 2-D.O.F. SYSTEM
**
*FREQUENCY,norm=mass
 1,,,-1000
**
*OUTPUT, FIELD
*NODE OUTPUT
 U,RF
*END STEP
**
**
*STEP
 STEP-2: OBTAIN STEADY STATE DYNAMIC RESPONSE 
	 IN TERMS OF PHYSICAL DEGREES OF FREEDOM - DIRECT
** USE CONNECTOR LOAD
**
*STEADY STATE DYNAMICS, DIRECT
12, 
60,
**
*CONNECTOR LOAD, LOAD CASE=1
 ACTUATOR,6,-1.0
*CONNECTOR LOAD, LOAD CASE=2
 ACTUATOR,6,-1.0
**
*OUTPUT, FIELD
*NODE OUTPUT
 U,RF
*OUTPUT, HISTORY
*ELEMENT OUTPUT, ELSET=CONNECTORS
 CTM3,CEM3,CVM3,CRM3
 CUR3,
 CSLST,
*END STEP
**
**
*STEP, NLGEOM, INC=200
 STEP-3: CHANGE THE BASE STATE - LOCK CONNECTOR 1
**
*STATIC,DIRECT
 0.01,1.5
*CLOAD,AMPLITUDE=AMP
 2,6,1.0
**BOUNDARY
**2,6,6,-1.5
**
*OUTPUT, FIELD ,freq=100
*NODE OUTPUT
 U,RF
*ELEMENT OUTPUT
 NFORC,ELEN
*OUTPUT, HISTORY,freq=1
*ELEMENT OUTPUT, ELSET=CONNECTORS
 CDMG,CDMGR,CU,CEF,
*NODE OUTPUT, NSET=RF
RF
*END STEP
**
** REPEAT ALL STEPS 
**
*STEP
 STEP-4: OBTAIN NATURAL MODES OF THE 2-D.O.F. SYSTEM
**
*FREQUENCY,norm=mass
 1,,,-1000
**
**BOUNDARY,OP=NEW
** NALL,1,5
** FIXED,6,6
*OUTPUT, FIELD
*NODE OUTPUT
 U,RF
*END STEP
**
**
*STEP
 STEP-5: OBTAIN STEADY STATE DYNAMIC RESPONSE 
	 IN TERMS OF PHYSICAL DEGREES OF FREEDOM - DIRECT
** USE CONNECTOR LOAD
**
*STEADY STATE DYNAMICS, DIRECT
12, 
60,
**
*CONNECTOR LOAD, LOAD CASE=1
 ACTUATOR,6,1.0
*CONNECTOR LOAD, LOAD CASE=2
 ACTUATOR,6,1.0
**
*OUTPUT, FIELD
*NODE OUTPUT
 U,RF
*OUTPUT, HISTORY
*ELEMENT OUTPUT, ELSET=CONNECTORS
 CTM3,CEM3,CVM3,CRM3
 CUR3,
 CSLST,
*END STEP