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100

101

POTENTIAL

16.22

POTENTIAL: Deﬁne an anisotropic yield/creep model.

This option is used to deﬁne stress ratios for anisotropic yield and creep behavior. It can be used

only in conjunction with material models deﬁned by the

CREEP option, the

PLASTIC option

(HARDENING=ISOTROPIC, KINEMATIC, or COMBINED; the

POTENTIAL option ca n be used in

conjunction with COMBINED hardening only in ABAQUS/Explicit), and/or the

VISCOUS option.

Products: ABAQUS/Standard ABAQUS/Explicit

Type: Model data

Level: Model

References:

•

“Classical metal plasticity,” Section 18.2.1 of the ABAQUS Analysis User’s Manual

•

“Models for metals subjected to cyclic loading,” Section 18.2.2 of the ABAQUS Analysis User’s Manual

•

“Rate-dependent plasticity: creep and swelling,” Section 18.2.4 of the ABAQUS Analysis User’s Manual

•

“Anisotropic yield/creep,” Section 18.2.6 of the ABAQUS Analysis User ’s Manual

•

“Two-layer viscoplasticity,” Section 18.2.11 of the A BAQU S Analysis User ’s Manual

Optional parameter:

DEPENDENCIES

Set this parameter eq ual to the number of ﬁeld variable dependencies included in the deﬁnition

in addition to temperature. If this parameter is omitted, it is assum ed that the anisotropy

ratios are constant or depend only on temperature. See “Specifying ﬁeld variable dependence”

in “Material data deﬁnition,” Section 16.1.2 of the ABAQUS Analysis User’s Manual, for more

information.

Data lines used to deﬁne stress ratios:

First line:

1. .

16.22–1

ABAQUS Version 6.1 Module:

ID:

Printed on:

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Abaqus Volume II: I–Z Manual do Utilizador Página 297

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