Getting Started with ABAQUS/Explicit: Keywords Version  


A.2 Stress wave propagation in a bar

wave_50x10x10.inp

*HEADING
Stress wave propagation in a bar -- 50x10x10 elements
SI units (kg, m, s, N)
*NODE,NSET=FLHS
1,0.,0.
21,0.,.2
*NGEN,NSET=FLHS
1,21,1
*NODE,NSET=FRHS
5001,1.,0.
5021,1.,.2
*NGEN,NSET=FRHS
5001,5021,1
*NFILL,NSET=NFRONT
FLHS,FRHS,50,100
*NODE,NSET=BLHS
200001,0.,0.,-.2
200021,0.,.2,-.2
*NGEN,NSET=BLHS
200001,200021,1
*NODE,NSET=BRHS
205001,1.,0.,-.2
205021,1.,.2,-.2
*NGEN,NSET=BRHS
205001,205021,1
*NFILL,NSET=NBACK
BLHS,BRHS,50,100
*NFILL,NSET=NALL
NFRONT,NBACK,10,20000
*ELEMENT,TYPE=C3D8R,ELSET=BAR
1,1,3,103,101,20001,20003,20103,20101
*ELGEN,ELSET=BAR
1,10,2,2,50,100,100,10,20000,20000
*ELGEN,ELSET=ELOAD
1,10,2,2,10,20000,20000
*ELSET,ELSET=EOUT
81209,82509,83709
*NFILL,NSET=NLHS
FLHS,BLHS,10,20000
*NFILL,NSET=NFIX
FRHS,BRHS,10,20000
*NGEN,NSET=LBOT
1,200001,20000
*NGEN,NSET=RBOT
5001,205001,20000
*NFILL,NSET=NBOT
LBOT,RBOT,50,100
*NGEN,NSET=LTOP
21,200021,20000
*NGEN,NSET=RTOP
5021,205021,20000
*NFILL,NSET=NTOP
LTOP,RTOP,50,100
*SOLID SECTION,ELSET=BAR,MATERIAL=STEEL
*MATERIAL,NAME=STEEL
*ELASTIC
207.0E9,0.3
*DENSITY
7800.0,
*BOUNDARY
NFIX,1,3
NFRONT,3,3
NBACK,3,3
NTOP,2,2
NBOT,2,2
*AMPLITUDE,NAME=BLAST
0.,1.,3.88E-5,1.,3.89E-5,0.,3.90E-5,0.
*STEP
Blast loading
*DYNAMIC,EXPLICIT
,2.0E-4
*BULK VISCOSITY
,0.0
*DLOAD,AMPLITUDE=BLAST
ELOAD,P3,1.0E5
*OUTPUT, FIELD, VARIABLE=PRESELECT, NUMBER INTERVAL=4
*OUTPUT, HISTORY, TIME INTERVAL=1.0E-6
*ELEMENT OUTPUT, ELSET=EOUT 
S,
**********************************
** OUTPUT FOR ABAQUS QA PURPOSES
**********************************
*NSET,NSET=QA_TEST_NLHS
NLHS,
*OUTPUT, FIELD, NUMBER INTERVAL=2, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_NLHS
U,
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=5.0E-5
**
*FILE OUTPUT,NUMBER INTERVAL=2,TIMEMARKS=YES
*NODE FILE,NSET=NLHS
U,
*END STEP

wave_25x5x5.inp

*HEADING
Stress wave propagation in a bar -- 25x5x5 elements
SI units (kg, m, s, N)
*NODE,NSET=FLHS
1,0.,0.
21,0.,.2
*NGEN,NSET=FLHS
1,21,1
*NODE,NSET=FRHS
5001,1.,0.
5021,1.,.2
*NGEN,NSET=FRHS
5001,5021,1
*NFILL,NSET=NFRONT
FLHS,FRHS,50,100
*NODE,NSET=BLHS
200001,0.,0.,-.2
200021,0.,.2,-.2
*NGEN,NSET=BLHS
200001,200021,1
*NODE,NSET=BRHS
205001,1.,0.,-.2
205021,1.,.2,-.2
*NGEN,NSET=BRHS
205001,205021,1
*NFILL,NSET=NBACK
BLHS,BRHS,50,100
*NFILL,NSET=NALL
NFRONT,NBACK,10,20000
*ELEMENT,TYPE=C3D8R,ELSET=BAR
1,1,5,205,201,40001,40005,40205,40201
*ELGEN,ELSET=BAR
1,5,4,4,25,200,200,5,40000,40000
*ELGEN,ELSET=ELOAD
1,5,4,4,5,40000,40000
*NFILL,NSET=NLHS
FLHS,BLHS,10,20000
*NFILL,NSET=NFIX
FRHS,BRHS,10,20000
*NGEN,NSET=LBOT
1,200001,20000
*NGEN,NSET=RBOT
5001,205001,20000
*NFILL,NSET=NBOT
LBOT,RBOT,50,100
*NGEN,NSET=LTOP
21,200021,20000
*NGEN,NSET=RTOP
5021,205021,20000
*NFILL,NSET=NTOP
LTOP,RTOP,50,100
*SOLID SECTION,ELSET=BAR,MATERIAL=STEEL
*MATERIAL,NAME=STEEL
*ELASTIC
207.0E9,0.3
*DENSITY
7800.0,
*BOUNDARY
NFIX,1,3
NFRONT,3,3
NBACK,3,3
NTOP,2,2
NBOT,2,2
*AMPLITUDE,NAME=BLAST
0.,1.,3.88E-5,1.,3.89E-5,0.,3.90E-5,0.
*STEP
Blast loading
*DYNAMIC,EXPLICIT
,2.0E-4
*BULK VISCOSITY
,0.0
*DLOAD,AMPLITUDE=BLAST
ELOAD,P3,1.0E5
*OUTPUT, FIELD, VARIABLE=PRESELECT, NUMBER INTERVAL=10
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=1.0E-6
**********************************
** OUTPUT FOR ABAQUS QA PURPOSES
**********************************
*NSET,NSET=QA_TEST_NLHS
NLHS,
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_NLHS
U,
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=5.0E-5
**
*FILE OUTPUT,NUMBER INTERVAL=4,TIMEMARKS=YES
*NODE FILE,NSET=NLHS
U,
*END STEP

wave_50x5x5.inp

*HEADING
Stress wave propagation in a bar -- 25x5x5 elements
SI units (kg, m, s, N)
*NODE,NSET=FLHS
1,0.,0.
21,0.,.2
*NGEN,NSET=FLHS
1,21,1
*NODE,NSET=FRHS
5001,1.,0.
5021,1.,.2
*NGEN,NSET=FRHS
5001,5021,1
*NFILL,NSET=NFRONT
FLHS,FRHS,50,100
*NODE,NSET=BLHS
200001,0.,0.,-.2
200021,0.,.2,-.2
*NGEN,NSET=BLHS
200001,200021,1
*NODE,NSET=BRHS
205001,1.,0.,-.2
205021,1.,.2,-.2
*NGEN,NSET=BRHS
205001,205021,1
*NFILL,NSET=NBACK
BLHS,BRHS,50,100
*NFILL,NSET=NALL
NFRONT,NBACK,10,20000
*ELEMENT,TYPE=C3D8R,ELSET=BAR
1,1,5,105,101,40001,40005,40105,40101
*ELGEN,ELSET=BAR
1,5,4,4,50,100,100,5,40000,40000
*ELGEN,ELSET=ELOAD
1,5,4,4,5,40000,40000
*NFILL,NSET=NLHS
FLHS,BLHS,10,20000
*NFILL,NSET=NFIX
FRHS,BRHS,10,20000
*NGEN,NSET=LBOT
1,200001,20000
*NGEN,NSET=RBOT
5001,205001,20000
*NFILL,NSET=NBOT
LBOT,RBOT,50,100
*NGEN,NSET=LTOP
21,200021,20000
*NGEN,NSET=RTOP
5021,205021,20000
*NFILL,NSET=NTOP
LTOP,RTOP,50,100
*SOLID SECTION,ELSET=BAR,MATERIAL=STEEL
*MATERIAL,NAME=STEEL
*ELASTIC
207.0E9,0.3
*DENSITY
7800.0,
*BOUNDARY
NFIX,1,3
NFRONT,3,3
NBACK,3,3
NTOP,2,2
NBOT,2,2
*AMPLITUDE,NAME=BLAST
0.,1.,3.88E-5,1.,3.89E-5,0.,3.90E-5,0.
*STEP
Blast loading
*DYNAMIC,EXPLICIT
,2.0E-4
*BULK VISCOSITY
,0.0
*DLOAD,AMPLITUDE=BLAST
ELOAD,P3,1.0E5
*OUTPUT, FIELD, VARIABLE=PRESELECT, NUMBER INTERVAL=10
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=1.0E-6
**********************************
** OUTPUT FOR ABAQUS QA PURPOSES
**********************************
*NSET,NSET=QA_TEST_NLHS
NLHS,
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_NLHS
U,
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=5.0E-5
**
*FILE OUTPUT,NUMBER INTERVAL=4,TIMEMARKS=YES
*NODE FILE,NSET=NLHS
U,
*END STEP

wave_50x10x5.inp

*HEADING
Stress wave propagation in a bar -- 50x10x5 elements
SI units (kg, m, s, N)
*NODE,NSET=FLHS
1,0.,0.
21,0.,.2
*NGEN,NSET=FLHS
1,21,1
*NODE,NSET=FRHS
5001,1.,0.
5021,1.,.2
*NGEN,NSET=FRHS
5001,5021,1
*NFILL,NSET=NFRONT
FLHS,FRHS,50,100
*NODE,NSET=BLHS
200001,0.,0.,-.2
200021,0.,.2,-.2
*NGEN,NSET=BLHS
200001,200021,1
*NODE,NSET=BRHS
205001,1.,0.,-.2
205021,1.,.2,-.2
*NGEN,NSET=BRHS
205001,205021,1
*NFILL,NSET=NBACK
BLHS,BRHS,50,100
*NFILL,NSET=NALL
NFRONT,NBACK,10,20000
*ELEMENT,TYPE=C3D8R,ELSET=BAR
1,1,3,103,101,40001,40003,40103,40101
*ELGEN,ELSET=BAR
1,10,2,2,50,100,100,5,40000,40000
*ELGEN,ELSET=ELOAD
1,10,2,2,5,40000,40000
*NFILL,NSET=NLHS
FLHS,BLHS,10,20000
*NFILL,NSET=NFIX
FRHS,BRHS,10,20000
*NGEN,NSET=LBOT
1,200001,20000
*NGEN,NSET=RBOT
5001,205001,20000
*NFILL,NSET=NBOT
LBOT,RBOT,50,100
*NGEN,NSET=LTOP
21,200021,20000
*NGEN,NSET=RTOP
5021,205021,20000
*NFILL,NSET=NTOP
LTOP,RTOP,50,100
*SOLID SECTION,ELSET=BAR,MATERIAL=STEEL
*MATERIAL,NAME=STEEL
*ELASTIC
207.0E9,0.3
*DENSITY
7800.0,
*BOUNDARY
NFIX,1,3
NFRONT,3,3
NBACK,3,3
NTOP,2,2
NBOT,2,2
*AMPLITUDE,NAME=BLAST
0.,1.,3.88E-5,1.,3.89E-5,0.,3.90E-5,0.
*STEP
Blast loading
*DYNAMIC,EXPLICIT
,2.0E-4
*BULK VISCOSITY
,0.0
*DLOAD,AMPLITUDE=BLAST
ELOAD,P3,1.0E5
*OUTPUT, FIELD, VARIABLE=PRESELECT, NUMBER INTERVAL=10
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=1.0E-6
**********************************
** OUTPUT FOR ABAQUS QA PURPOSES
**********************************
*NSET,NSET=QA_TEST_NLHS
NLHS,
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_NLHS
U,
*OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=5.0E-5
**
*FILE OUTPUT,NUMBER INTERVAL=4,TIMEMARKS=YES
*NODE FILE,NSET=NLHS
U,
*END STEP