*MATRIX

Read in the stiffness or mass matrix for a linear user element.

This option can be used only in conjunction with the USER ELEMENT, LINEAR option. It is used to read in the stiffness, mass, viscous damping, or structural damping matrix for the user element. It can be used once for each of the matrix types.

This page discusses:

See Also
*USER ELEMENT
In Other Guides
User-Defined Elements

ProductsAbaqus/Standard

TypeModel data

LevelPartPart instanceModel

Required parameters

TYPE

Set TYPE=MASS to define the mass matrix.

Set TYPE=STIFFNESS to define the stiffness matrix.

Set TYPE=VISCOUS DAMPING to define the viscous damping matrix.

Set TYPE=STRUCTURAL DAMPING to define the structural damping matrix.

Optional parameters

INPUT

Set this parameter equal to the name of the alternate input file from which the data lines are to be read. See Input Syntax Rules for the syntax of such file names. If this parameter is omitted, it is assumed that the data follow the keyword line.

Data lines to define the matrix

First line

  1. Matrix entries, four per line.

Repeat this data line as often as necessary.