Interpretation of signals from dropweight impact tests

Autor:	A.P. Paran, I.C. Howard, M.S. Found
Rok vydání:	1998
Předmět:	Vibration Engineering business.industry Acoustics Ceramics and Composites Impact test Composite material Impact Impulse (physics) business Threshold energy Digital filter Civil and Structural Engineering
Zdroj:	Composite Structures. 42:353-363
ISSN:	0263-8223
Popis:	A spring-mass model has been developed to describe the dropweight impact response of CFRP panels. The model separates the effects of the main impact impulse, high frequency oscillations and free vibrations and can be used as a reliable guide for effective digital filtering of signals from dropweight impact tests. Whilst the model at present does not account for damage, the onset of high frequencies towards the peak impact force indicate the onset of damage in the panel. The oscillations become larger and extend over a wider plateau as the perforation threshold energy is approached.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0feefbcaeae0a2cb724db2fc836400bb https://doi.org/10.1016/s0263-8223(98)00080-4 Zobrazit plný text záznamu Full Text from ScienceDirect