*HEADING
 SIMPLE SHEAR -- CPS4R ELEMENT TYPE TESTED TO 300 PERCENT SHEAR
**
**Analytical solution provided by Dienes (1979):
**S11=4*mu*(cos(2*beta)*ln(cos(beta))+beta*sin(2*beta)-sin^2(beta))
**S12=2*mu*cos(2*beta)*(2*beta-2*tan(2*beta)*ln(cos(beta)-tan(beta))
**where tan(beta)=gamma
**
*NODE, NSET=QA_TEST_ALLNODES
301,3.0,0.
302,4.0,0.
303,4.0,1.
304,3.0,1.
305,3.0,2.
306,4.0,2.
307,4.0,3.
308,3.0,3.
*NSET,NSET=FIX
301,302,306,307
*NSET,NSET=XSHEAR
303,304
*NSET,NSET=YSHEAR
305,308
*NSET,NSET=NOUT
304,305
*ELEMENT,TYPE=CPS4R,ELSET=PS
3, 301,302,303,304
8, 305,306,307,308
*SOLID SECTION,ELSET=PS,MATERIAL=MAT
*MATERIAL,NAME=MAT
*DENSITY
1.346E-4, 
*ELASTIC
1.,0.
*ELSET,ELSET=EALL
PS, 
*BOUNDARY
FIX,1,3
XSHEAR,2,3
YSHEAR,1,1
YSHEAR,3,3
*RESTART,WRITE,NUMBER INTERVAL=2,TIMEMARKS=NO
**
*ELSET,ELSET=QA_TEST_ALLELEMS
PS,
**
*NSET, NSET=QA_TEST_ALLNODES
QA_TEST_ALLNODES, FIX, XSHEAR, YSHEAR
NOUT, 
**
*STEP
*DYNAMIC,EXPLICIT
,1.5
*BOUNDARY,TYPE=VELOCITY
XSHEAR,1,1,4.0
YSHEAR,2,2,4.0
***OUTPUT,HISTORY,TIME INTERVAL=.0015
***ENERGY OUTPUT
**ALLKE,ALLIE,ALLSE,ALLAE,ALLVD,ALLWK,ETOTAL,DT
***ELEMENT OUTPUT,ELSET=EALL
**S,LE
***NODE OUTPUT,NSET=NOUT
**U,
*FILE OUTPUT,NUMBER INTERVAL=1,TIMEMARKS=YES
*EL FILE
SP,LE,NE,
*NODE FILE
U, 
*OUTPUT, FIELD, NUMBER INTERVAL=1, TIMEMARKS=YES
*ELEMENT OUTPUT, ELSET=QA_TEST_ALLELEMS
SP,LE,NE,
*NODE OUTPUT, NSET=QA_TEST_ALLNODES
U, 
*OUTPUT,FIELD,VARIABLE=PRESELECT
*OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=1.5
*END STEP