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http://dx.doi.org/10.7234/kscm.2007.20.5.026

An Investigation on the Strength of Insert Joints of Composite-Honeycomb Sandwich Structures  

Choi, Ji-Young (경상대학교 항공공학과 대학원)
Song, Keun-Il (경상대학교 항공공학과 대학원)
Choi, Jin-Ho (경상대학교 기계항공공학부/항공기부품기술연구소)
Kim, Kwang-Soo (한국항공우주연구원)
Jang, Young-Soon (한국항공우주연구원)
Kweon, Jin-Hwe (경상대학교 기계항공공학부/항공기부품기술연구소)
Publication Information
Composites Research / v.20, no.5, 2007 , pp. 26-33 More about this Journal
Abstract
Pull-out and shear strengths of insert Joints of sandwich structure were investigated by experiment. Specimens were prepared by cocuring of nomex honeycomb core and carbon-epoxy composite face using an adhesive FM73. A total of 75 specimens with 10 different types depending on the core height and density, face thickness, and loading direction were tested. In the test under pull-out loading, although both the core height and density affect the failure loads, the effect of cell density is more serious. Dominant factor fur failure loads of the joints under shear loading is face thickness and the effect of core height is negligible. In the joint with same dimension, failure loads vary depending on the potted area of the core, particularly in the pull-out test.
Keywords
Sandwich; Insert; Joint; Composite Material; Honeycomb;
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