** TESTS OF REBAR:
**                 ELASTIC BASE
**                 ELASTIC REBAR
**
** TEST 1 - REBAR IN HOOP DIRECTION 
** TEST 2 - REBAR IN AXIAL DIRECTION
** TEST 3 - REBAR AT 60 DEGREES
**
** STEP 1 LOADING: DISPLACEMENT IN HOOP DIRECTION
** ANALYTIC RESULTS:
**                       
**         UNDERLYING       REBAR    REBAR    REACTION FORCE
** TEST #  ELEMENT STRESS   STRESS   STRAIN   AT LEFT EDGE NODE
**
** 1,4        ~ 0.0         13863.    .6931    Fx=87103, Fy=0.
** 2,5        ~ 0.0             0.    .0       Fx=0.,    Fy=0.
** 3,6        ~ 0.0         11786.    .5893    Fx=68359, Fy=22780
**
** STEP 2 LOADING: ADDITIONAL DISPLACEMENT IN AXIAL DIRECTION
** ANALYTIC RESULTS:
**                       
**         UNDERLYING       REBAR    REBAR    REACTION FORCE
** TEST #  ELEMENT STRESS   STRESS   STRAIN   AT LEFT EDGE NODE
**
** 1,4        ~ 0.0         13863.    .6931    Fx=87103, Fy=0.
** 2,5        ~ 0.0         13863.    .6931    Fx=0.,    Fy=174200
** 3,6        ~ 0.0         13863.    .6931    Fx=65327, Fy=43552
**
**
*HEADING
**
** TEST CASE 1)
** REBAR: HOOP DIRECTION
** ELEMENT TYPE: SAX1
** 
**
*NODE,NSET=NALL
11,  2., 0.
12,  2., 2.
*NSET,NSET=BOT
11, 
*NSET,NSET=TOP
12, 
*ELEMENT,TYPE=SAX1,ELSET=SHELL1
11, 11,12
*SHELL SECTION,ELSET=SHELL1,MATERIAL=BASE
.25,
*REBAR LAYER
REBAR1,0.5,0.5,,REBAR,90,1
*ELSET,ELSET=EALL
SHELL1,
**
** TEST CASE 2)
** REBAR: AXIAL DIRECTION
** ELEMENT TYPE: SAX1
** 
**
*NODE,NSET=NALL
21,  2., 5.
22,  2., 7.
*NSET,NSET=BOT
21, 
*NSET,NSET=TOP
22, 
*ELEMENT,TYPE=SAX1,ELSET=SHELL2
21, 21,22
*SHELL SECTION,ELSET=SHELL2,MATERIAL=BASE
.25, 
*REBAR LAYER,GEOMETRY=ANGULAR
REBAR2,0.5,7.1666,,REBAR,0.0,1
*ELSET,ELSET=EALL
SHELL2,
**
** TEST CASE 3)
** REBAR: REBAR AT 60 DEGREES
** ELEMENT TYPE: SAX1
** 
**
*NODE,NSET=NALL
31,  2., 10.
32,  2., 12.
*NSET,NSET=BOT
31, 
*NSET,NSET=TOP
32, 
*ELEMENT,TYPE=SAX1,ELSET=SHELL3
31, 31,32
*SHELL SECTION,ELSET=SHELL3,MATERIAL=BASE
.25,
*REBAR LAYER,GEOMETRY=ANGULAR
REBAR3,0.5,7.1666,,REBAR,60.0,1 
*ELSET,ELSET=EALL
SHELL3,
**
** TEST CASE 4)
** REBAR: HOOP DIRECTION
** ELEMENT TYPE: SAX1, NODAL THICKNESS
** 
**
*NODE,NSET=NALL
41,  2., 15.
42,  2., 17.
*NSET,NSET=BOT
41, 
*NSET,NSET=TOP
42, 
*ELEMENT,TYPE=SAX1,ELSET=SHELL4
41, 41,42
*SHELL SECTION,ELSET=SHELL4,MATERIAL=BASE,NODAL THICKNESS
.25,
*REBAR LAYER,GEOMETRY=ANGULAR
REBAR4,0.5,0.5,,REBAR,90.0,1 
*ELSET,ELSET=EALL
SHELL4,
*NODAL THICKNESS
41, .375
42, .125
**
** TEST CASE 5)
** REBAR: AXIAL DIRECTION
** ELEMENT TYPE: SAX1, NODAL THICKNESS, COMPOSITE
** 
**
*NODE,NSET=NALL
51,  2., 20.
52,  2., 22.
*NSET,NSET=BOT
51, 
*NSET,NSET=TOP
52, 
*ELEMENT,TYPE=SAX1,ELSET=SHELL5
51, 51,52
*SHELL SECTION,ELSET=SHELL5,COMPOSITE,NODAL THICKNESS
.0625,3, BASE
.125, 3, BASE
.0625,3, BASE
*REBAR LAYER,GEOMETRY=ANGULAR
REBAR5,0.5,7.1666,,REBAR,0.0,1
*ELSET,ELSET=EALL
SHELL5,
*NODAL THICKNESS
51, .375
52, .125
**
** TEST CASE 6)
** REBAR: REBAR AT 60 DEGREES
** ELEMENT TYPE: SAX1, COMPOSITE
** 
**
*NODE,NSET=NALL
61,  2., 25.
62,  2., 27.
*NSET,NSET=BOT
61, 
*NSET,NSET=TOP
62, 
*ELEMENT,TYPE=SAX1,ELSET=SHELL6
61, 61,62
*SHELL SECTION,ELSET=SHELL6,COMPOSITE
.0625,3, BASE
.125, 3, BASE
.0625,3, BASE
*REBAR LAYER,GEOMETRY=ANGULAR
REBAR6,0.5,7.1666,,REBAR,60.0,1
*ELSET,ELSET=EALL
SHELL6,
**
**
*MATERIAL,NAME=BASE
*ELASTIC
1., 0.498
*DENSITY
1.E-4, 
*MATERIAL,NAME=REBAR
*ELASTIC
2.E4, 
*DENSITY
1.E-4, 
****************************
** LOAD IN HOOP DIRECTION **
****************************
*AMPLITUDE,NAME=SMOOTH, DEFINITION=SMOOTH STEP
0.0,0.0,.02,1.0
*STEP
*DYNAMIC,EXPLICIT,DIRECT USER CONTROL
.002,.02
*BOUNDARY,AMPLITUDE=SMOOTH
TOP,2,6
BOT,2,6
TOP,1,1,2.0
BOT,1,1,2.0
**
*RESTART,WRITE,NUMBER INTERVAL=1
*FILE OUTPUT,TIMEMARKS=YES,NUMBER INTERVAL=1
*EL FILE
S,LE,ENER,RBFOR,RBANG,RBROT
ELEN, 
*NODE FILE
RF,
***********************************************
*OUTPUT,HISTORY,TIME INTERVAL=0.02
*ENERGY OUTPUT, VAR=ALL
*********************************************** 
*OUTPUT,FIELD,NUMBER INTERVAL=1
*ELEMENT OUTPUT,REBAR
LE,S,RBFOR
*NODE OUTPUT
U
**
*END STEP
*****************************
** LOAD IN AXIAL DIRECTION **
*****************************
*STEP
*DYNAMIC,EXPLICIT
,.02
*BOUNDARY,AMPLITUDE=SMOOTH
TOP,2,2,2.0
*END STEP