压力循环载荷怎么加？
我对导管施加压力循环载荷，怎么施加？这是属于低周疲劳分析吧！abaqus里如何设置？求指教！ 参考：http://forum.vibunion.com/thread-71714-1-1.html {:{10}:} **
**
** ASSEMBLY
**
*Assembly, name=Assembly
**
*Instance, name=Beam-1, part=Beam
*End Instance
**
*Nset, nset=_PickedSet4, internal, instance=Beam-1
1, 13
*Nset, nset=_PickedSet17, internal, instance=Beam-1
2,
*Nset, nset=_PickedSet18, internal, instance=Beam-1
3,
*Nset, nset=_PickedSet19, internal, instance=Beam-1
4,
*Nset, nset=_PickedSet20, internal, instance=Beam-1
5,
*Nset, nset=_PickedSet21, internal, instance=Beam-1
6,
*Nset, nset=_PickedSet22, internal, instance=Beam-1
7,
*Nset, nset=_PickedSet23, internal, instance=Beam-1
8,
*Nset, nset=_PickedSet24, internal, instance=Beam-1
9,
*Nset, nset=_PickedSet25, internal, instance=Beam-1
10,
*Nset, nset=_PickedSet26, internal, instance=Beam-1
11,
*Nset, nset=_PickedSet27, internal, instance=Beam-1
12,
*Nset, nset=_PickedSet28, internal, instance=Beam-1, generate
1, 121, 1
*Elset, elset=_PickedSet28, internal, instance=Beam-1, generate
1, 120, 1
*End Assembly
*Amplitude, name=Amp-004
0., 0., 0.04, 1.
*Amplitude, name=Amp-Dead+CDgk
0., 0., 10., 1.
**
** MATERIALS
**
*Material, name=Q345
*Density
8e-09,
*Elastic
200000., 0.3
**
** BOUNDARY CONDITIONS
**
** Name: Fix Type: 位移/转角
*Boundary
_PickedSet4, 1, 1
_PickedSet4, 2, 2
** ----------------------------------------------------------------
**
** STEP: Step-Dead+CDgk
**
*Step, name=Step-Dead+CDgk
*Static
1., 1., 1e-05, 1.
**
** LOADS
**
** Name: Load-CDgk Type: Line load
*Dload
_PickedSet28, PY, -21.
** Name: Load-Dead Type: Gravity
*Dload
, GRAV, 9800., 0., -1.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, frequency=10
*Node Output
CF, RF, U
*Element Output, directions=YES
LE, PE, PEEQ, PEMAG, S, SF
*Contact Output
CDISP, CSTRESS
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT, frequency=10
*End Step
** ----------------------------------------------------------------
**
** STEP: Step-1m
**
*Step, name=Step-1m, amplitude=RAMP
*Dynamic
0.04,0.04,4e-07
**
** LOADS
**
** Name: Load-1m Type: Concentrated force
*Cload
_PickedSet17, 2, -416000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field
*Node Output
CF, RF, U
*Element Output, directions=YES
LE, PE, PEEQ, PEMAG, S, SF
*Contact Output
CDISP, CSTRESS
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step
** ----------------------------------------------------------------
**
** STEP: Step-2m
**
*Step, name=Step-2m, amplitude=RAMP
*Dynamic
0.04,0.04,4e-07
**
** LOADS
**
** Name: Load-1m Type: Concentrated force
*Cload, op=NEW
** Name: Load-2m Type: Concentrated force
*Cload, op=NEW
_PickedSet18, 2, -416000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field
*Node Output
CF, RF, U
*Element Output, directions=YES
LE, PE, PEEQ, PEMAG, S, SF
*Contact Output
CDISP, CSTRESS
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step
** ----------------------------------------------------------------
**
** STEP: Step-3m
**
*Step, name=Step-3m, amplitude=RAMP
*Dynamic
0.04,0.04,4e-07
**
** LOADS
**
** Name: Load-2m Type: Concentrated force
*Cload, op=NEW
** Name: Load-3m Type: Concentrated force
*Cload, op=NEW
_PickedSet19, 2, -416000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field
*Node Output
CF, RF, U
*Element Output, directions=YES
LE, PE, PEEQ, PEMAG, S, SF
*Contact Output
CDISP, CSTRESS
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step
参考一下，希望对你有帮助！ Jillian 发表于 2016-5-21 11:10
参考：http://forum.vibunion.com/thread-71714-1-1.html
谢谢分享，，
页:
[1]