id	keyword
fis-1276	fatigue
fis-1276	design
fis-1276	fracture
fis-1276	failure
fis-1276	crack
fis-1276	structures
fis-1276	aircraft
fis-1276	stress
fis-1276	life
fis-1276	shell
fis-1276	service
fis-1276	crane
fis-1276	cracking