19

19.1

() 19.1 19.1 19.2

EX=70000NUXY=0.325 19.1

55 112 172 241 0.0007857 0.00575 0.02925 0.1

19.2

0 1 2 3 0 -6000 750 -6000

6.5

130

10

F

19.1

Y

19.2

19.2.1

17.1StructuralCircular Plate Loaded by a Circular Punch - Kinematic Hardening

1 Utility Menu | File | Change Jobname Change Jobname () 17.2 Enter new jobname ()CH17(New log and error files)Yes

19.2

2 Utility Menu | File | Change Title Change Title () 19.3 Enter new title ()Circular Plate Loaded by a Circular Punch - Kinematic Hardening

19.3

3 Utility Menu | Plot | ReplotCircular Plate Loaded by a

Circular Punch - Kinematic Hardening() 4Main Menu | Preference Preference of GUI Filtering () Structual()

19.2.2

ANSYS6.1

( 18 )

1 Utility Menu | Parameters | Scalar Parameters Scalar Parameters () 19.4

19.4 2 Selection ()

EXX70000 EXX70000

EXX=70000 RPL=65 RPU=5 H=6.5

STS1=55 STN1=STS1/EXX(ANSYS 7.857142857E-04) STS2=112 STN2= 0.00575 STS3=172 STN3= 0.02925 STS4=241 STN4=0.1) NEX=15 NET=2 L1 NEX1=nint(0.8*NET)( ANSYS 2) L2 NEX2=NEX-NEX1( ANSYS 13) 3 ANSYS6.1(ANSYS Toolbar)

19.2.3

4

1Main Menu | Preprocessor | Element Type | Add/Edit/DeleteElement Types () Library of Element Types (), 19.5

19.5

2Structural SolidQuad 4node 42 Plane 42

Library of Element Types Element Types () 1PLANE42 19.6

19.6

3 PLANE42 element type options

(PLANE42) 19.7

19.7 4 element behavior () Axisymmetric

5(Element Types)

19.2.4

1Main Menu | Preprocessor | Material Props | Material Models Define Material Model Behavior () 19.8

19.8

2 Structural | Linear | Elastic | Isotropic1 EX PRXY 19.9

19.9 3(EX)EXXANSYS6.1(PRXY) 0.325

4(Define Material Model Behavior) Structural |

Nonlinear | Inelastic | Rate Independent | Kinematic Hardening Plasticity | Mises Plasticity | Multilinear(General) 1 (Multilinear Kinematic Kardening for Material Number 1) 19.10

19.10 1

5 STRAIN/STRESS ()

STN1 STS1 STRAIN/STRESS

STN2 STS2 4 ANSYS6.1 4 19.10

6 1 19.10

ANSYS6.1 1 19.11

19.11 1 7 Define Material Model Behavior ()

1Material >Exit

19.2.5

1Main Menu | Preprocessor | Create | Nodes | In Active CS Create Nodes in Active Coordinate System (

) 19.12

19.12 2Node number ()1 XRPL( 0) 1

2X=0Y=0Z=0 2 3X=0Y=H/2Z=0 3 ANSYS 3()

3Main Menu | Preprocessor | Modeling | Create Keypoints | In Active CSCreate Nodes in Active Coordinate System () 19.13

19.13 4 Keypoint number ()1 Y(H/2)(0) 1

2XY RPU-(H/2)

23XYRPL-(H/2) ANSYS 3()

5Main Menu | Preprocessor | Copy | Keypoints 3

Copy Keypoints () 19.14

19.14 6Y-offset active CS ( DY)H KINC3 Y

3 7 Utility Menu | PlotCtrls | NumberingKeypoint numbers ()ONLine numbers

Area numbersON 19.15

19.15

8Main Menu | Preprocessor | Modeling | Create | Lines | Lines | Straight Line 124523 56 L1:12L2 :45L3:23 L4:5

6Pan/Zoom/Rotate

9Main Menu | Preprocessor | Create | Arbitrary | Through KPs Create Area thru KPs () 1254 2365 19.16

19.16 10Main Menu | Preprocessor | Meshing | Size

Cntrls | ManualSize | Lines | Picked Lines(Element Size on Picked Lines) ANSYS L5~L7 Element Size on Picked Lines ()19.17

19.17 11 No. of element devisions ()NET 2

12 L1L2 NEX12 L3L4NEX2(Spacing ratio)2.5 L3L4

19.18

19.18 13Main Menu | Preprocessor | Meshing | Mesh | Areas

| Mapped | 3 or 4 sidedMesh Areas ()

ANSYS6.1 19.19

19.19 1013 ANSYSMeshTool

Main Menu | Preprocessor | Meshing | Mesh Tool

19.2.6

Y Y

1Utility Menu | PlotCtrls | Numbering Node numbers ()ON Utility Menu | Plot | NodesANSYS

2Main Menu | Preprocessor | Coupling Ceqn | Couple DOFs Define Coupled DOFs () 379 Define Coupled DOFs () 19.20

19.20 3 Set reference number ()1 Degree-of-freedom

label ()UY Y 19.21

19.21 4Main Menu | Preprocessor | Loads | Define Loads | Apply

| Structural | Displacement | On Nodes Apply U,ROT on Nodes () 1

Apply U,ROT on Nodes () 19.22

19.22 5 DOFs to be constrained ()UY 1 Y

234 19.22UYUX

19.22 19.23

19.23 6 ANSYS6.1(ANSYS Toolbar)

19.3

19.3.1

1Main Menu | Analysis Type | Solution | New Analysis New Analysis ()()Static

2Main Menu | Solution | Analysis Type | Sol'n Controls 19.24 Basic () Write Items to Results File () Frequency ()Write every substepMain Menu | Solution | Load Step Opts | Output Ctrls | DB/Results FileNolinear 19.25

19.24

19.25 3 19.25 Nolinear Options () DOF solution

predictor ()On after 1 substpAdvanced NL ()()

4

19.3.2

1Main Menu | Solution | Define Loads | Apply | Structural | Force/Moment | On Nodes 3() 3 Apply F/M on Nodes () 19.26

19.26 2 Direction force/mom ()FY

Force/moment value ()0 3Main Menu | Solution | Load Step Opts | Time/Frequenc

| Time & Substps Time and Substep Options ()19.27

19.27 4(Time at end of load step)1e-6

Number of substeps () 1 Automatic Time Steping ()ON

5Main Menu | Solution | Load Step Opts | Write Ls FileWrite Load Step File () 19.28

19.28 6 Load Step file number n ()1

ANSYSCH19.S01 7 16 19.26 3 Y-6000 19.27

Time at end of load step1Number of substeps10 19.28 Load step file number n ()2CH19.S02

8 16 19.26 3 Y750 19.27Time at end of load step2 19.28 Load step file number n ()3CH19.S03

9 16 19.26 3 Y-6000 19.27Time at end of load step3 19.28 Load step file number n ()4CH19.S04

10 ANSYS6.1(ANSYS Toolbar)

19.3.3

1Main Menu | Solution | Solve | From LS Files Solve Load Step Files () 19.29

19.29 2 Starting LS file number ()1Ending

LS file number ()4 14 ANSYS

3

19.4

(POST1)(POST26)

19.4.1

1Main Menu | General Pestpro | Read Results | Last Set

2Main Menn | General Postproc | Plot Results | Deformed Shape Plot Deformed Shape ()Def+undef edge ANSYS 19.30

19.30 3Main Menu | General Postproc | Plot

Results | Contour Plot | Nodal Solu Contour Nodal Solution Data () 19.31

19.31 4Strain-elasticVon Mises EPELEQVDef+undef edge

ANSYS 19.32

19.32

5Strain-PlasticVon Mises EPPLEQV

ANSYS 19.33

17.33

19.4.2

ANSYS

1Main Menu | TimeHist Postpro Time History Variables ()

2 Add Time History Variable () 19.34 3 3 Y

19.34 3 Result Item ()

Element Solution | Stress | Y-Component of stressVariable Name ()SY_2 3

3 2SY_2

4 Element Solution | Elastic Strain | Y-Component of elastic strain 3

3 3 Y 3 5 Element Solution | Plastic Strain | Y-Component of

Plastic strain 4 3 3 Y

6 Calculator ()( 19.35) EPTLY

EPELY_3({}) EPPLY_4

({}) 19.35 EPTLY( 19.35)

19.35 7 Utility Menu | PlotCtrls | Style | Graphs | Modify

Axes X Y-Strain Y Y-Stress

8 19.35 5EPTLY X 2SY_2

Y ANSYS 3 Y 19.36

19.36 3Y

ANSYS ANSYS

17.5

ANSYS GUI /PREP7 /TITLE,Circular Plate Loaded by a Circular Punch - Kinematic Hardening !* EXX=70000 RPL=65 RPU=5 H=6.5 STS1=55 STN1=STS1/EXX STS2=112 STN2=0.00575 STS3=172 STN3= 0.02925 STS4=241

STN4= 0.1 NEX=15 NET=2 NEX1=nint(0.8*NET) NEX2=NEX-NEX1 !* ET,1,42,,,1 PLANE42 !* MP,EX,1,EXX MP,NUXY,1,0.325 !* TB,KINH,1,1,4, TBPT,,STN1,STS1 TBPT,,STN2,STS2 TBPT,,STN3,STS3 TBPT,,STN4,STS4 !* N,1,RPL,,,,,, N,2,0,,,,,, N,3,,H/2,,,,, !* K,1,,-(H/2),, K,2,RPU,-(H/2),, K,3,RPL,-(H/2),, KGEN,2,ALL, , , ,H, ,3,0 !* L,1, 2 L,4, 5 L,2, 3 L,5,6 !* A,1,2,5,4 A,2,3,6,5 !* LESIZE,1, , ,NEX1 LESIZE,2, , ,NEX1 LESIZE,3, , ,NEX2,2.5 LESIZE,4, , ,NEX2,2.5 LESIZE,5, , ,NET

LESIZE,6, , ,NET LESIZE,7, , ,NET !* AMESH,ALL !* NUMMRG,NODE, , , ,LOW NUMCMP,NODE !* CP,1,UY,3,7,9 !* D,1,UY NSEL,S,LOC,X,0 D,ALL,UX NSEL,ALL !* /SOLU !* ANTYPE,0 OUTRES,ALL,ALL PRED,ON !* F,3,FY,0 TIME,1e-6 AUTOTS,1 NSUBST,1, , ,1 KBC,0 LSWRITE,1, !* F,3,FY,-6000 TIME,1 NSUBST,10, , ,1 LSWRITE,2, !* F,3,FY,750 TIME,2 LSWRITE,3, !* F,3,FY,-6000 TIME,3

LSWRITE,4, !* 4 LSSOLVE,1,4,1, FINISH !* /POST1 SET,LAST PLDISP,1 !* PLNSOL,EPPL,EQV,1,1 PLNSOL,EPEL,EQV,1,1 !* /POST26 ESOL,2,3,3 ,S,Y,SY_2 ESOL,3,3,3 ,EPEL,Y,EPELY_3 ESOL,4,3,3 ,EPPL,Y,EPPLY_4 ADD,5,3,4,,EPTLY !* /AXLAB,X,Y-Strain /AXLAB,Y,Y-Stress !* XVAR,5 PLVAR,2, FINISH