Abaqus/CAE User's Manual
12.8.5
Defining field variables at a material point
(在一个材料点定义场变量)
In Abaqus/Standard you can introduce dependence on solution variables
with user subroutine
USDFLD
. This subroutine allows you to define field
variables
at
a
material
point
as
functions
of
time,
of
any
of
the
available
material point quantities listed in
?/p>
Abaqus/Standard output variable
identifiers,
?nbsp;
Section
4.2.1
of the Abaqus
Analysis
User's Manual
,
and of
material directions. Material properties defined as functions of these
field variables may, thus, be dependent on the solution.
User subroutine
USDFLD
is called at each point for which the material
definition includes a reference to the user subroutine.
(在
ABAQUS
里面,你能够用子程序
USDFLD
来求解变量?/p>
USDFLD
允许你将一?/p>
材料点上的场变量定义为时间函数,
能够使用到的材料点在用户使用手册
4.2.1
节中?/p>
abaqus
输出变量的标识码”中被提及到。材料的特性被定义作为场变?/p>
的函数,因此依赖于求解方法。)
(在每个被定义材料性能的点
USDFLD
能够被调用)
To
include
a
reference
to
user
subroutine
USDFLD
in
a
material
definition:
1.
From
the
menu
bar
in
the
Edit
Material
dialog
box,
select
General
User Defined Field
.
(For information on displaying the
Edit Material
dialog box, see
?/p>
Creating or editing a material,
?nbsp;
Section 12.7.1
.)
2.
Click
OK
to
close
the
Edit
Material
dialog
box.
Alternatively,
you
can select another material behavior to define from the menus in
the
Edit
Material
dialog
box
(see
?/p>
Browsing
and
modifying
material
behaviors,
?nbsp;
Section 12.7.2
, for more information).
Abaqus/CAE User's Manual
(子程序
USDFLD
在材料中的定义过程可参考下面: