Hi All,

i am using force spectrum for slug flow analysis. we can use SUS+Dynamic(slug force) for OCC stress.

i have considered FAT cycle of 630720000 based on slug periodicity for 20 years.

we couldn't able to develop the static load case with more than 9 forces input. hence no adequate load cases (with slug force) in static analysis.

CAESAR file is not working if we input the FAT cycle in spectrum load case.

if we include the FAT cycle in Static/Dynamic combinations then it will include the Static load case (W+P1 - SUS) also in the FAT cycle which is not correct.

anyone come across this problem while doing force spectrum for slug flow considering FAT stress type?

regards,
senthil