Mechanical APDL Basic Analysis Guide

inistate,set,dtyp,epel

inistate,set,mat,3

inistate,defi,,,,,1E-3

! Apply EPS X = 0.1, EPS Y = -0.02, EPS Z = -0.02, for Layers 1,3,5 and

! EPS X = 0.2, for Layers 2,4,6

! Layer 1,3,5 have material 1 and Layer 2,4,6 have material 2.

inistate,set,mat,1

inistate,defi,,,,,0.1,-0.02,-0.02

inistate,set,mat,2

inistate,defi,,,,,0.2

For an initial strain example problem, see Example: Initial Strain Problem Using the INISTATE Com-
mand (p. 101).

4.2.3. Initial Plastic Strain Application

The initial stress application example can be ext ended for initial plastic strain by simply changing the
data type to EPPL, as shown:

! Constant Initial Plastic Strain and Stress on the Whole Model

inistate,set,dtyp,eppl

inistate,defi,,,,,0.1

inistate,set,dtype,s

inistate,defi,,,,,1000

! Apply a Strain of EPEL X=0.01 at Elem Integration Pt 3 within Element 2.

! Here it is assumed that the initial stress is zero.

inistate,set,dtyp,eppl

inistate,defi,2,3,,,0.01

! Apply accumulated equivalent plastic strain.

inistate,set,dtyp,pleq

inistate,defi,2,3,,,0.02

! Apply EPS X = 0.1, EPS Y = -0.02, EPS Z = -0.02, for Layers 1,3,5 and

! EPS X = 0.2, for Layers 2,4,6

! Layer 1,3,5 have material 1 and Layer 2,4,6 have material 2.

inistate,set,dtype,eppl

inistate,set,mat,1

inistate,defi,,,,,2.0

inistate,set,mat,2

inistate,defi,,,,,0.2

For an initial plastic strain example problem, see Example: Initial Plastic Strain Problem Using the INISTATE
Command (p. 101).

4.2.4. Initial Creep Strain Application

The initial stress application example can be ext ended for initial creep strain by simply changing the
data type to EPCR, as shown:

! Apply creep strain, plastic strain, accumulated equivalent plastic strain, stress on

! all the selected elements

inistate,set,dtyp,epcr

inistate,defi,,,,,0.005

inistate,set,dtyp,eppl

inistate,defi,,,,,0.1

inistate,set,dtyp,epeq

inistate,defi,,,,,0.02

inistate,set,dtype,s

inistate,defi,,,,,1000

For an initial creep strain example problem, see Example: Initial Creep Strain Problem Using the INISTATE
Command (p. 103).

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Initial State