Mechanical APDL Structural Analysis Guide

For information about the CREEP option, see Implicit Creep Equations, and Implicit Creep Proced-
ure (p. 211).

For information about the NLISO option, see Nonlinear Isotropic Hardening.

8.4.2.45. HILL and CREEP and BKIN Example.

This input listing illustrat es an example of modeling anisotropic implicit creep with bilinear kinematic
hardening plasticity.

MP,EX,1,1e7! ELASTIC CONSTANTS

MP,NUXY,1,0.32

TB,BKIN,1! BKIN TABLE

TBDATA,1,42000,1000

TB,CREEP,1,,,6! CREEP TABLES

TBDATA,1,7.4e-21,3.5,0,0,0,0

TB,HILL,1! HILL TABLE

TBDATA,1,1.15,1.05,1.0,1.0,1.0,1.0

For information about the HILL option, see Generalized Hill.

For information about the CREEP option, see Implicit Creep Equations, and Implicit Creep Proced-
ure (p. 211).

For information about the BKIN option, see Bilinear Kinematic Hardening.

8.4.2.46. HYPER and VISCO (Hyperelasticity and Viscoelasticity (Implicit)) Example.

This input listing illustrat es the combination of implicit hyperelasticity and viscoelasticity.

c10=293

c01=177

TB,HYPER,1,,,MOON !!!! type 1 is Mooney-Rivlin

TBDATA,1,c10,c01

a1=0.1

a2=0.2

a3=0.3

t1=10

t2=100

t3=1000

tb,prony,1,,3,shear! define Prony constants

tbdata,1,a1,t1,a2,t2,a3,t3

For information about hyperelasticity, see Hyperelastic Material Constants, and Hyperelasticity Material
Model (p. 202).

For information about the viscoelasticity, see Viscoelastic Material Constants, and Viscoelasticity (p. 215).

8.4.2.47. AHYPER and PRONY (Anisotropic Hyperelasticity and Viscoelasticity (Implicit))

Example

This input listing illustrat es the combination of anisotropic hyperelasticity and viscoelasticity.

! defininig material constants for anistoropic hyperelastic option with TB,AHYPER command

tb,ahyper,1,1,31,poly

! a1,a2,a3

tbdata,1,10,2,0.1

! b1,b2,b3

tbdata,4,5,1,0.1

! c2,c3,c4,c5,c6

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Modeling Material Nonlinearities