@Article{icces.2023.010058,
AUTHOR = {Yifan Wang, Tao Wang, Xuan Ye},
TITLE = {Theoretical	and	Numerical	Research	on	the	Vertical	Impact	of	a	Slender	 Flat-Ended	316	Stainless	Steel	Rod},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {25},
YEAR = {2023},
NUMBER = {3},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v25n3/53845},
ISSN = {1933-2815},
ABSTRACT = {Rod	 occasionally	 drops	 and	 impacts	 on	 a	 substrate,	 which	 can	 induce	 drastic	 vibration	 within	 the	 rod.
Acquaintance	with	the	mechanical	and	motional responses	helps	to	evaluate	the	structure. In	this	study,	the	
vertical	impact of	a	slender	flat-ended	316	stainless	steel	rod	on	a	rigid	flat	was	investigated.	The	rod	was	
basically	elastic	despite	minute	plastic	dissipation,	which	accounted	for around	0.11% of	the	total	energy,	
probably	 due	 to	 the	 convergence of	 the	 incident	 stress	 waves.	 Theoretical	 models describing	 the	
longitudinal	 vibration	 of	 the	 rod	 was	 established respectively	 using	 the	 contact-impact	 force	 and	 the	
displacement	 boundary	 condition based	 on	 the	 one-dimensional	 hypothesis.	 In	 the	 former boundary	
condition,	 the	 contact-impact	 force	 is	 assumed	 to	 be	 constant	 during	 the	 impact,	 and	 the	 displacement	
variation	was	solved	using	the	method	of	variable	separation;	in	the	latter	boundary	condition,	the	material	
points	 at	 the	impacting	 end	 remain	 static,	 and	 the	displacement	 variation	 was	derived	through	Laplace	
transform. Excellent	 quantitative	 agreement	 was	 achieved	 between	 the	 predicted results by	 the	 two	
theoretical	models	and	the	numerical	results by	finite	element	method. The	displacement	variation	at	the	
free	end	of	the	rod	is	consistent	with the	variation	of	elastic	strain	energy. A	buffering	nose	at	the	impacting	
end	 of	 the	 rod	is	 suggested in	 order	to	guarantee	the	 structural	integrity	of	 the	 cylindrical	part lest the	
incident velocity	becomes	greater. The	longitudinal	vibrational responses	of	the	slender	rod	only	depend	on	
the	rod	length and	the	material according	to	the	proposed	theoretical	model.},
DOI = {10.32604/icces.2023.010058}
}