*HEADING
 Linear elasticity and perfect plasticity;
 Linear Drucker-Prager with K=1;
 Uniaxial tension test, cps4 element.
**
*NODE,NSET=ALLN
 1, 0., 0.
 2, 1., 0.
 3, 1., 1.
 4, 0., 1.
*ELEMENT,TYPE=CPS4,ELSET=ALLE
 1,1,2,3,4
**
*SOLID SECTION,ELSET=ALLE,MATERIAL=ALLE
*MATERIAL,NAME=ALLE
*ELASTIC
 3.E5, 0.3
*DRUCKER PRAGER
 40., 1., 40.
*DRUCKER PRAGER HARDENING,TYPE=TENSION
 4.8E3,0.
**
*BOUNDARY
 1,PINNED
 2,2
 4,1
**
*STEP,INC=20
*STATIC,DIRECT
 1.,20.
*BOUNDARY
 3,2,,0.2
 4,2,,0.2
**
*EL PRINT
 S, 
 SINV, 
 E, 
 PE, 
 EE, 
*NODE PRINT
 U, 
 RF, 
*OUTPUT,FIELD,FREQ=10
*ELEMENT OUTPUT
S,SINV,E,PE
**
*END STEP