**impose_nodal_reaction_file

Description

This boundary condition allows to define the nodal reactions forces using values from an ascii file.

Syntax

**impose_nodal_reaction_file [ *dtime ] \(~\,~\,\) time  file  file_name [scale]

where

dtime

define increments of time instead of default total time.

time

time at which is precised the values of the nodal reactions forces of each node.

file_name

name of the file in which is precised the values of the nodal reactions forces of each node.

scale

a factor multiplied by the values of the R_DOF of the file_name.

Note

Values at zero time are assumed to be null.

Example

This example can be found in $Z7PATH/TESTS/Static_test/INP/cube_file_reaction_bc1.inp.

***bc
 **fix_all_dof
   x=0
   x=1/2
   x=1

 **impose_nodal_reaction_file
   % vals at zero time are assumed to be null
   5.0  file  cube_file_bc1.reaction1  0.5
   20.0 file  cube_file_bc1.reaction2  1.0

The ascii files in which are defined the values of the nodal reaction forces of each node :

=========================
 cube_file_bc1.reaction1
=========================
% x=1/2
5      U1
7      U1  66.7
13     U1  66.7
15     U1  66.7

% x=1
2        U1  133.4
3        U1  133.4
6        U1  133.4
10       U1  133.4
11       U1  133.4
14       U1  133.4
18       U1  133.4
19       U1  133.4

=====================
 cube_file_bc1.disp2
=====================
% x=1/2
5      U1  133.4
7      U1  133.4
13     U1  133.4
15     U1  133.4

% x=1
2        U1  266.8
3        U1  266.8
6        U1  266.8
10       U1  266.8
11       U1  266.8
14       U1  266.8
18       U1  266.8
19       U1  266.8