ISSN:
1662-8985
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:
Eight composite plates 400x410x2.15mm were fabricated from carbon/epoxy in((0,90)4)s lay-up. To ensure there was no damage in the plates prior to the impact investigations theplates were C-scanned. A drop test rig was used to apply a low velocity impact to the undamagedplates. A rebound mechanism was employed to prevent secondary impacts.AE sensors were selected for frequency and size due to the limited space on the test rig. Superglue was used both as a couplant and also to secure the sensors in position. During the impact wavestreaming, time driven data and hit driven data were used to record the impact simultaneously. Onetest was conducted on each sample with two impacts completed at 5J, 6J, 8J and 10J (total of 8samples). The impacts were designed to allow only slight visible impact damage to be formed.After completion of the impact investigation the plates were C-scanned to determine the area ofdebonded material. Analysis of the data showed the complete record of the impact event from thewave streaming, while the hit driven and time driven absolute energy data provided increasingcorrelations with the area of composite damaged
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.13-14.253.pdf
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