abaqus帮助文件中有关于密度的修正的dpc本构模型吗

Question

如题所述

Answer 1

我现在假定你的DPC模型的意思是某一种或者某一些场因素，来影响密度的定义的。不过这个我不用知道得更多。

Abaqus可以让用户使用的因素可以有多种：普遍使用的是温度，空隙压力也就是pore pressure，第三种事实上是一个用户自定义的Field，这个可以是任意在你的模型之中存在的场变量，比如磁场强度等等等。

上面一段之中最后的那个用户定义的因素的数量，可以无限多，可以使用下面手册上的DEPENDENCIES来定义多少。

如果你要定义如此复杂的密度，肯定要使用到Fortran subroutine编程。

我给你看一下关键词手册，你就知道如何开始了。

*DENSITY
Specify material mass density.

This option is used to define a material's mass density. In an Abaqus/Standard analysis spatially varying mass density can be defined for solid continuum elements using a distribution (“Distribution definition,” Section 2.8.1 of the Abaqus Analysis User's Guide).

Products: Abaqus/Standard Abaqus/Explicit Abaqus/CFD Abaqus/CAE

Type: Model data

Level: Model

Abaqus/CAE: Property module

Reference:
“Density,” Section 21.2.1 of the Abaqus Analysis User's Guide

Optional parameters:

DEPENDENCIES
Set this parameter equal to the number of field variables included in the definition of the density, in addition to temperature. If this parameter is omitted, it is assumed that the density is constant or depends only on temperature. See “Specifying field variable dependence” in “Material data definition,” Section 21.1.2 of the Abaqus Analysis User's Guide, for more information.

This parameter is not relevant in an Abaqus/Standard analysis if spatially varying density is defined using a distribution. See “Distribution definition,” Section 2.8.1 of the Abaqus Analysis User's Guide.

It is assumed that the density is constant in Abaqus/CFD analyses.

PORE FLUID
This parameter applies only to Abaqus/Standard analyses.

Include this parameter if the density of the pore fluid in a porous medium is being defined.