Mechanical APDL Structural Analysis Guide

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mp,ex,1,2.1e4! Elastic Properties

mp,nuxy,1,0.1

ys=7.894657

sl=1000.0

tb,edp,1,,,LYFUN

tbdata,1,2.2526,ys

tb,edp,1,,,LFPOT

tbdata,1,0.566206

tb,plas,1,1,2,miso

tbpt,defi,0.0,7.894

tbpt,defi,1,1007.894

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

For information about the EDP option, see Extended Drucker-Prager.

8.4.2.10. MISO and EDP Example.

The TB,MISO option can also be used to combine multilinear isotropic hardening with Extended
Drucker-Prager plasticity, as shown in the following example:

/prep7

mp,ex,1,2.1e4! Elastic Properties

mp,nuxy,1,0.1

ys=7.894657

sl=1000.0

tb,edp,1,,,LYFUN

tbdata,1,2.2526,ys

tb,edp,1,,,LFPOT

tbdata,1,0.566206

tb,miso,1,1,2

tbpt,defi,0.000375905,7.894

tbpt,defi,1.047994952,1007.894

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

For information about the EDP option, see Extended Drucker-Prager.

8.4.2.11. GURSON and BISO Example.

The TB,BISO option can also be used to combine bilinear isotropic hardening with Gurson plasticity, as
shown in the following example:

q1=1.5

q2=1

q3=q1*q1

sigma_Y=E/300.0

Yield=1.0/sigma_Y

rone=1.0

rthree=3.0

f_0= 0.04

f_N= 0.04

S_N=0.1

strain_N=0.3

Power_N=0.1

tb,GURS,1,,5,BASE! Gurson's BASE model

tbdata,1,sigma_Y,f_0,q1,q2,q3

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Modeling Material Nonlinearities