id	keyword
fis-3616	concrete
fis-3616	steel
fis-3616	tube
fis-3616	behavior
fis-3616	strain
fis-3616	plastic
fis-3616	strength
fis-3616	steel tube
fis-3616	elasto
fis-3616	columns
fis-3616	hardening
fis-3616	model
fis-3616	 
fis-3616	numerical