Restart for Fatigue Analysis
Restart for fatigue analysis is available from linear static analysis results, local model results, and random response results.
Fatigue Restart from Linear Static Analysis Results
An .h3d file containing results from a linear static analysis
can be imported into a dummy linear static subcase. A subsequent fatigue analysis
subcase can be used to conduct fatigue analysis based on the imported linear static
analysis results. The following example illustrates the
setup.
ASSIGN,H3DRES,10,linear_static.h3d
SUBCASE 1
ANALYSIS=STATIC
IMPORT(SUB=1)=10
SUBCASE 21
FATDEF = 100
FATPARM = 252
FATSEQ = 401
BEGIN BULK
FATSEQ,401
+,501,1
FATEVNT,501,601
FATLOAD,601,701,1,1.000,5.00,0.0
Fatigue Restart from Local Model Results
(Imported global model .h3d-submodeling)
An .h3d file containing results from the global model
(submodeling) can be imported into a dummy local analysis static subcase which
contains the corresponding global-local interface setup via
SPC/SPCD with the M
option for mapping. For more information, see the Global-Local Analysis (Submodeling) User Guide. A subsequent
fatigue analysis subcase can be used to conduct fatigue analysis based on the
results coming from the local model. The following example illustrates the
setup.
ASSIGN,H3DRES,10,global.h3d
SUBCASE 1
SPC=11
IMPORT(SUB=1)=10
SUBCASE 21
FATDEF = 100
FATPARM = 252
FATSEQ = 401
BEGIN BULK
FATSEQ,401
+,501,1
FATEVNT,501,601
FATLOAD,601,701,1,1.000,5.00,0.0
SPC,11,1,123,M
+,GSET
SPC,11,2,123,M
+,GSET
Fatigue Restart from Random Response Results
(Restarted from .h3d coming from FRF analysis results)
An .h3d file containing results from a frequency response
analysis can be imported into a random response subcase. Then a subsequent fatigue
analysis subcase can be used to conduct fatigue analysis based on the random
response analysis results. The following example illustrates the
setup.
ASSIGN,H3DRES,10,frf.h3d
SUBCASE 1
ANALYSIS=MFREQ
IMPORT(SUB=1)=10
SUBCASE 2
ANALYSIS=RANDOM
RANDOM = 100
SUBCASE 9
LABEL fatigue
ANALYSIS FATIGUE
FATDEF = 13
FATPARM = 15
FATSEQ = 23
Begin bulk
FATSEQ,23
+,24,1
FATEVNT,24,22
FATLOAD,22,,2