id	keyword
fis-1931	fatigue
fis-1931	crack
fis-1931	strain
fis-1931	stress
fis-1931	model
fis-1931	growth
fis-1931	huffman
fis-1931	fatigue crack
fis-1931	propagation
fis-1931	life
fis-1931	data
fis-1931	steel
fis-1931	energy
fis-1931	correia