FAILURE

I/O Options and Subcase Information Entry Used to request failure output for elements referencing PSOLID or PSHELL properties for all subcases or individual subcases, respectively.

Format

FAILURE (format_list, location, SUBSYS=SUBSYS_ID) = option

Definitions

Argument Options Description
format <H3D, blank>
H3D
Results are output in Hyper3D format (.h3d file).
blank (Default)
Results are output in all active formats, for which the result is available.
location <CORNER, GPS, blank>
CORNER
Corner Stress values are used to calculate the failure output.
  • If there is no corner-based location option requested for STRESS output in the model, then the failure output is calculated based on the stress results coming from the STRESS(CORNER/BILIN) option.
  • If there is a corner-based location option requested for STRESS output in the model (or if PARAM,CNST4FAT is specified), then the corresponding user-defined location-based STRESS results are used for the failure output calculation.
GPS
Grid Point Stress values are used to calculate the failure output. This is different from using the CORNER stress option as for GPSTRESS, the stresses are averaged at each grid.
blank (Default)
Failure output is calculated based on the elemental stress results (STRESS at CENTER location).
SUBSYS <SUBSYS_ID>

No default

 ID of the subsystem.

When used along a subsystem definition, this option generates an individual result file for each subsystem with results for that subsystem only.

For more information, refer to the SET Bulk Data Entry.
option <YES, NO, blank>
YES (Default), blank
Results are output for all elements.
NO
Results are not output.

Comments

  1. Multiple formats are allowed on the same entry, these should be comma separated. If no format is specified, then this output control applies to all formats defined by OUTPUT or FORMAT commands, for which the result is available.
  2. For more information on the supported analysis types and formats, refer to Results Output by OptiStruct.
  3. The von Mises, Tresca, Major Principal, and Minor Principal Factor of Safety (FOS), and the corresponding Margin of Safety (MOS) results are printed to the H3D file. The allowable stress fields, SC, ST, or SS on the referenced materials (MAT1 or MATT1) should be defined to output all failure criteria.