Mechanical APDL Structural Analysis Guide

For information about the CHAB option, see Nonlinear Kinematic Hardening.

8.4.2.35. HILL and PLAS (Multilinear Isotropic Hardening) and CHAB Example.

In addition to the TB,MISO example (above), you can also use material plasticity. The multilinear isotropic
hardening option - TB,PLAS, , , ,MISO is combined with HILL anisotropic plasticity and Chaboche non-
linear kinematic hardening in the following example:

MP,EX,1,185E3! ELASTIC CONSTANTS

MP,NUXY,1,0.3

TB,CHAB,1! CHABOCHE TABLE

TBDATA,1,185,100,3

TB,PLAS,,,,MISO! MISO TABLE

TBPT,,0.001,185

TBPT,,0.998,380

TB,HILL,1! HILL TABLE

TBDATA,1,1.0,1.1,0.9,0.85,0.9,0.80

For information about the MISO option, see Multilinear Isotropic Hardening.

For information about the HILL option, see Generalized Hill.

For information about the CHAB option, see Nonlinear Kinematic Hardening.

8.4.2.36. HILL and NLISO and CHAB Example.

This input listing illustrat es an example of combining anisotropic plasticity with nonlinear isotropic
hardening and Chaboche nonlinear kinematic hardening.

MPTEMP,1,20,200,400,550,600,650! ELASTIC CONSTANTS

MPTEMP,,700,750,800,850,900,950

!

MPDATA,EX,1,1,1.250E4,1.210E4,1.140E4,1.090E4,1.070E4,1.050E4

MPDATA,EX,1,,1.020E4,0.995E4,0.963E4,0.932E4,0.890E4,0.865E4

!

MPDATA,EY,1,1,1.250E4,1.210E4,1.140E4,1.090E4,1.070E4,1.050E4

MPDATA,EY,1,,1.020E4,0.995E4,0.963E4,0.932E4,0.890E4,0.865E4

!

MPDATA,EZ,1,1,1.250E4,1.210E4,1.140E4,1.090E4,1.070E4,1.050E4

MPDATA,EZ,1,,1.020E4,0.995E4,0.963E4,0.932E4,0.890E4,0.865E4

!

MPDATA,PRXY,1,1,0.351,0.359,0.368,0.375,0.377,0.380

MPDATA,PRXY,1,,0.382,0.384,0.386,0.389,0.391,0.393

!

MPDATA,PRYZ,1,1,0.351,0.359,0.368,0.375,0.377,0.380

MPDATA,PRYZ,1,,0.382,0.384,0.386,0.389,0.391,0.393

!

MPDATA,PRXZ,1,1,0.351,0.359,0.368,0.375,0.377,0.380

MPDATA,PRXZ,1,,0.382,0.384,0.386,0.389,0.391,0.393

!

MPDATA,GXY,1,1,1.190E4,1.160E4,1.110E4,1.080E4,1.060E4,1.040E4

MPDATA,GXY,1,,1.020E4,1.000E4,0.973E4,0.946E4,0.908E4,0.887E4

!

MPDATA,GYZ,1,1,1.190E4,1.160E4,1.110E4,1.080E4,1.060E4,1.040E4

MPDATA,GYZ,1,,1.020E4,1.000E4,0.973E4,0.946E4,0.908E4,0.887E4

!

MPDATA,GXZ,1,1,1.190E4,1.160E4,1.110E4,1.080E4,1.060E4,1.040E4

MPDATA,GXZ,1,,1.020E4,1.000E4,0.973E4,0.946E4,0.908E4,0.887E4

TB,NLISO,1! NLISO TABLE

TBDATA,1,180,0.0,100.0,5

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Modeling Material Nonlinearities