id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_24azh22yq5dknkxwnk6fllqv4u	Jiagui Liu	Impact testing of polymeric foam using Hopkinson bars and digital image analysis	2014.0	22	.pdf	application/pdf	5909	671	68	Impact testing of polymeric foam using Hopkinson bars and digital image analysis Impact testing of polymeric foam using Hopkinson bars and digital Accurate average stress-strain relations can be obtained when soft large diameter polymeric pressure bars and appropriate data processing are used. generally no homogeneous strain and stress fields for polymeric foam, an optical displacement In contrast with quasi-static tests where the digital image correlation (DIC) measurement is commonly used, technical difficulties still remain for an use under Keywords: Polymeric foam, Impact testing, Hopkinson bars, High-speed imaging, Digital Hopkinson bars have been widely used to experimentally characterize the mechanical behaviors of materials under impact strain rates loading, from 102 s−1 to 104 s−1 and provide more high strain rates were obtained with such nylon pressure bars method for polymeric foams [21] technical points of high speed strain field measurement such as time synchronization accuracy Hopkinson bar technique and optical DIC strain field measurement.	./cache/work_24azh22yq5dknkxwnk6fllqv4u.pdf	./txt/work_24azh22yq5dknkxwnk6fllqv4u.txt