Co-cure Manufacture Process and Evaluation of KSLV-II Interstage Composite Panels
- Paper number
IAC-13,C2,9,4,x18591
- Author
Dr. Kwang-Soo Kim, Korea Aerospace Research Institute, Korea, Republic of
- Year
2013
- Abstract
In this study, the manufacturing process and structural performance of the composite panels were evaluated for the application of KSLV-II interstage. Two types of structural concepts were considered: Skin-stringer and sandwich-stringer. For the autoclave co-curing of the panels, two techniques were applied: Bladder molding and conventional rubber molding. In the first manufacturing panels using 120 degree C curing CFRP prepreg, multi-defects such as delamination, porosity, voids were detected by NDE regardless of which structural type and co-curing technique were utilized. In the second manufacturing, the material change to 320 degree C curing CFRP prepreg, cure cycle modifications, and addition of debulking process were taken in account. As a result, manufacturing qualities were considerably enhanced. The compression loading tests were carried out with every manufacturing panel. Test result showed that the skin-stringer panel manufactured by the bladder molding technique and the selected process had best structural performance.
- Abstract document
- Manuscript document
IAC-13,C2,9,4,x18591.pdf (🔒 authorized access only).
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