fix_modify AtC output boundary_integral command — LAMMPS documentation

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# fix_modify AtC output boundary_integral command

## Syntax

    fix_modify <AtC fixID> output boundary_integral <fieldname> faceset [name]

- AtC fixID = ID of fix atc instance

- output boundary_integral = name of the AtC sub-command

- fieldname = name of hardy field

- faceset = required keyword

- name= name of faceset

## Examples

    fix_modify AtC output boundary_integral stress faceset loop1

## Description

Calculates a surface integral of the given field dotted with the outward normal of the faces and puts output in the “GLOBALS” file.

## Restrictions

Must be used with the hardy/field type of fix atc

## Related AtC commands

- fix_modify AtC command overview

## Default

None.