Effect of the root crack on natural frequencies of sandwich composite beams

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Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi
Volume:19 Issue:7
Effect of the root crack on natural frequencies of sandwich composite beams

Effect of the root crack on natural frequencies of sandwich composite beams

Authors : Onur SAYMAN, Meltem Evren TOYGAR, Zeki KIRAL, Binnur Gören KIRAL

Pages : 298-302

Doi:10.5505/pajes.2013.96168

View : 22 | Download : 12

Publication Date : 2013-07-01

Article Type : Other Papers

Abstract :This study aims to examine the effect of interface crack on the free vibration response of a sandwich composite beam experimentally and numerically. Natural frequencies in a thin sandwich composite cantilever beam with root crack are determined. The crack with various lengths is opened between the face sheet and foam core, such as 50, 100, 150 and 200 mm. Free vibration tests of these samples are carried out. For the numerical analysis, ANSYS finite element software is used. Results obtained by numerical analyses and experiments are compared and it is seen that there is a good agreement between them.
Keywords : Sandwich composites, Root crack, Natural frequency, Finite element method

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