期刊
COMPOSITE STRUCTURES
卷 86, 期 1-3, 页码 135-145出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2008.03.026
关键词
single-lap bonded joint; dissimilar materials; adhesive; adherend
资金
- National Research Foundation of Korea [과C6B1810] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A parametric study on adhesively bonded carbon composite-to-aluminum single-lap joints was experimentally conducted. FM73m, a high strength adhesive produced by Cytec, Was used for bonding. The primary objective of this study is to investigate the effects Of various parameters, such as bonding pressure, overlap length, adherend thickness, and material type, on the failure load and failure mode of joints with dissimilar materials. While metal bonded joints generally fail at the adhesive, the final failure mode of all the tested bonded joints with dissimilar materials was delamination of the composite adherend. Bonding strengths of the tested joints were lower than the metal-to-metal bonded joint strength. The specimens bonded under pressure of 4 and 6 atm yielded higher failure loads than under pressure of 3 atm, which is within the range of the manufacturer-recommended bonding pressure. Failure loads of the joint increased slightly at an overlap length larger than 30 turn. Increasing adherend thickness resulted in an increase of the failure load, but was not linearly proportional to the failure load. (C) 2008 Elsevier Ltd. All rights reserved.
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