*HEADING
 HOMOGENEOUS COMPRESSION  (Linear Drucker-Prager Model)      
 Cohesion / Young's modulus (C/E) =.1, Friction angle Phi=30
**
*NODE
 1, 0., 0.
 2, 1., 0.
 3, 1., 1.
 4, 0., 1.
*NSET,NSET=RIGHT
 2,3
*NSET,NSET=LEFT
 1,4
*NSET,NSET=BOT
 1,2
*ELEMENT,TYPE=CPE4,ELSET=ALL
 1,1,2,3,4
*SOLID SECTION,MATERIAL=A1,ELSET=ALL
*MATERIAL,NAME=A1
*ELASTIC
 30.E3, 0.3
*DRUCKER PRAGER
 40., 1., 40.
*DRUCKER PRAGER HARDENING
 6.E3, 0.
*BOUNDARY
 LEFT,1
 BOT,2
**
*STEP,INC=20,NLGEOM
*STATIC
 0.05, 1., 0.05, 0.05
*BOUNDARY
 RIGHT,1,,-0.7
*MONITOR,NODE=2,DOF=1
*NODE PRINT,SUMMARY=NO
 U,RF
*EL PRINT,FREQUENCY=0
*NODE FILE
 U,RF
*END STEP