Bulk Data Entry Defines a loading sequence for a Fatigue Analysis.


(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
FATSEQ ID                
  FID1 N1/T1 FID2 N2/T2 FID3 N3/T3 FID4 N4/T4  
  FID5 N5/T5              


Field Contents SI Unit Example
ID Each FATSEQ card must have a unique ID. FATSEQ Subcase Information Entry may reference this identifier. Alternatively, this ID may be referenced by other FATSEQ definitions.

No default (Integer > 0)

FID# Identification number of FATSEQ or FATEVNT entry. 2

No default (Integer > 0)

N# Number of times this loading sequence or event is repeated. Repeat number (N#) has no effect on the results of a Factor of Safety (FOS) analysis.

For Sine-Sweep Fatigue Analysis, N# represents the number of sweeps of the corresponding FID# reference.

Default = 1 (Integer > 0)

T# Total Exposure time of the initial source in the Random Loading Sample. 3

For Sine-Sweep Fatigue Analysis, T# represents the time in seconds, if only a single frequency is considered (or sweep rate is set to 0.0).

Default = 1.0 (Real > 0.0)



  1. Identification numbers of FATSEQ and FATEVNT entries share the same ID pool.
  2. A fatigue subcase should reference the same subcase types through FATSEQ and FATEVNT entries (for example, either static subcases or transient subcases can be referenced, but not both). Referencing a combination of subcase types is not allowed.
  3. The total exposure time is defined for individual FATEVNT’s using the corresponding T# fields.
  4. This card is represented as a load collector in HyperMesh.