*HEADING

Test Explicit-MADYMO co-simulation by comparing with the 
analytical solution.

This problem is same as rbd_3d_sm_xbc.inp which has the complete
problem modeled in just Explicit. 

One of the springa elements and one of the point mass elements are
now modeled in MADYMO and not in Explicit.  

Analytical solution is also available for this problem. 
The "straight" Explicit solution and
the "coupled" solution are compared with the analytical solution.
*RESTART,TIMEMARKS=NO,WRITE,NUM=4
**
** Definition of the nodes
**
*NODE, NSET=QA_TEST_ALLNODES
1, -0.5,0.,1.5 
2,-0.5,1.,1.5
**3,0.,0.
**4,0.,1.
5, 1.5,1.,1.5
92,-0.5,1.,-0.5
95, 1.5,1.,-0.5
101, 2.0,1.,0.5
*NSET,NSET=REFND
101, 
*NSET,NSET=NOUT
4,2,101
**
** Definition of the elements
**
*ELEMENT,ELSET=SPRNGONE,TYPE=SPRINGA
1,1,2
***ELEMENT,ELSET=SPRNGTWO,TYPE=SPRINGA
**2,3,4
*ELEMENT,ELSET=MASS_SP1,TYPE=MASS
3,1
***ELEMENT,ELSET=MASS_SP2,TYPE=MASS
**4,4
*ELEMENT,ELSET=RIGID,TYPE=S4R
5,92,95,5,2
*ELEMENT,ELSET=SM_RGD1,TYPE=MASS
8, 2
9, 5
78, 92 
79, 95
**
** Definition of element properties
**
*SPRING,ELSET=SPRNGONE

1.E6, 
***SPRING,ELSET=SPRNGTWO
**
**1.E6, 
*MASS,ELSET=MASS_SP1
5.,
***MASS,ELSET=MASS_SP2
**5.,
*MASS,ELSET=SM_RGD1
5., 
** Initial and boundary conditions
**
*INITIAL CONDITION,TYPE=VELOCITY
101,6,10.
101,2,15.
**4,2,-5.
*BOUNDARY
1,1,3 
**3,1,3
**4,1,1
**4,3,3
101,1,1
101,3,5
**
** Definition of the dummy element used for controlling the time 
** increment size.
**
*NODE,NSET=DUMMY
10001,.1,-0.2
10002,.2,-0.2
10003,.1,0.8
10004,.2,0.8
10005,.1,-0.2,1.
10006,.2,-0.2,1.
10007,.1,0.8,1.
10008,.2,0.8,1.
*ELEMENT,ELSET=DUMMY,TYPE=C3D8R
10001,10001,10002,10004,10003,10005,10006,10008,10007
*SOLID SECTION,ELSET=DUMMY,MATERIAL=MAT
*MATERIAL,NAME=MAT
*ELASTIC
1.E7,0.2
*DENSITY
100., 
*BOUNDARY
10001,1,3
10002,2,3
10005,1,3
10006,2,3
**
***SURFACE,TYPE=NODE,NAME=DEFBLE
**4,
*SURFACE,TYPE=ELEMENT,NAME=RIGID
RIGID,SPOS
*RIGID BODY,ELSET=RIGID,REF NODE=101
*SHELL SECTION,ELSET=RIGID,MATERIAL=STIFF
0.0001
*MATERIAL,NAME=STIFF
*ELASTIC
1.E9,0.2
*DENSITY
10., 
**
*NSET, NSET=QA_TEST_ALLNODES
QA_TEST_ALLNODES, REFND, NOUT, DUMMY
**
*NSET,NSET=QA_TEST_REFND
REFND,
**
*STEP
*DYNAMIC,EXPLICIT,SCALE=0.1
,0.013
***CONTACT PAIR
**RIGID,DEFBLE
*Co-simulation, program=MADYMO, Name=compWithAnalyticalSol
*Co-Simulation Region
RIGID
*CLOAD
5, 2, -100000.0
*OUTPUT,HISTORY,FREQ=1
*NODE OUTPUT,NSET=NOUT
U,V,A
*NODE OUTPUT,NSET=REFND
UR3,VR3,AR3
*ENERGY OUTPUT
ALLKE,ALLIE,ALLAE,ALLWK,ETOTAL
*INCREMENTATION OUTPUT
DT
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_ALLNODES
U,
*NODE OUTPUT, NSET=QA_TEST_REFND
RF,
***OUTPUT,FIELD,VARIABLE=PRESELECT
***OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=0.00325
*END STEP