ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Bolted joints are widely used for composite structures. As is well known, excessivebearing load gives rise to bearing failure at hole boundaries. Detecting bearing failure is importantfor assuring integrity of composite structures. Since conventional nondestructive inspectionmethods are expensive, cumbersome, time-consuming, and not suitable for health monitoring, asimple, low-cost inspection method for bearing failure must be developed. Authors havedemonstrated the feasibility of detecting bearing failure by using an electric resistance changemethod. In this study, more detailed analyses were carried out to investigate the detectability interms of the damage size and the distance between damage and electrodes. The results show thatbearing failure of less than 10mm square causes the electric resistance change of a few hundredppm and thus can be easily detected, and that the electrodes can be mounted more than 10 mm farfrom a bolt hole
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.321-323.957.pdf
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