*HEADING
 : PATCH TEST FOR PIPE ELEMENTS  [PIPE21]
*NODE
 1,
 4,10.0
*NGEN
 1,4
*ELEMENT,TYPE=PIPE21
 1, 1,2
*ELGEN,ELSET=ALL
 1,3,1,1
*BEAM SECTION,SECTION=PIPE,ELSET=ALL,MATERIAL=MAT
 0.1,0.017435473
*MATERIAL,NAME=MAT
*DENSITY
 1.0
*ELASTIC
 30E6,0.0
*NSET,NSET=END1
 1, 
*NSET,NSET=END2
 4, 
*NSET, NSET=QA_TEST_NODE_TIP
 END2
*AMPLITUDE, NAME=SMOOTH, DEFINITION=SMOOTH STEP
 0.0, 0.0
 0.5, 1.0
 1.0, 1.0
*BOUNDARY
1,1,2
1,6,6
4,2
** ---------------------------------
*STEP,NLGEOM=YES,NAME=NON-LINEAR
*DYNAMIC, EXPLICIT
 , 1.0
*CLOAD, AMPLITUDE=SMOOTH, OP=NEW
4, 1, 3000.
*OUTPUT,FIELD
*NODE OUTPUT
U,RF
*OUTPUT, HISTORY
*NODE OUTPUT, NSET=QA_TEST_NODE_TIP
 UT
*END STEP