00000nam 2200000zi 4500 9.936156 CaOODSP 20241007095055 m o d f cr |n||||||||| 240328e198812uubccad obt f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- DR52-11/4-1988E-PDF Russell, Alan J., author. A damage tolerance assessment of bonded repairs to CF-18 composite components : part I: adhesive properties / A.J. Russell. Victoria, B.C. : Defence Research Establishment Pacific = Centre de recherches pour la défense pacifique : Research and Development Branch, Department of National Defence Canada, December 1988 1 online resource (27, [2] pages) : illustrations, charts text txt rdacontent computer c rdamedia online resource cr rdacarrier Technical memorandum ; 88-25 Title from cover page. Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (page 27). "The damage tolerance properties of three epoxy adhesives used in the manufacture and repair of the composite structure on the CF-18 aircraft are assessed. The resistance to both static fracture and fatigue crack growth are evaluated. Experimental variables include the mode of fracture (tension and shear), the fatigue load ratio, the test temperature and the method of bonding. Both the static and fatigue tests were found to rank the adhesives in the same order, viz. FM-300K superior to FM-300 superior to EA-9321. The fatigue testing revealed a tendency for delamination type failures to occur at low temperature, a situation likely to lead to non-conservative joint designs. The fatigue crack growth rate data are explained in terms of the failure mechanisms observed. The implication of these findings to the selection of repair adhesives for composite aircraft structure is discussed."--abstract. Graphite composites Testing. Adhesive joints Testing. Airframes Fatigue. Composites de graphite Tests. Assemblages collés Tests. Cellules (Aéronautique) Fatigue. Technical reports lcgft Rapports techniques rvmgf Defence Research Establishment Pacific, issuing body. Canada. Department of National Defence. Research and Development Branch, issuing body. Technical memorandum (Defence Research Establishment Pacific) 88-25. (CaOODSP)9.936067 PDF 924 KB https://publications.gc.ca/collections/collection_2024/rddc-drdc/DR52-11-4-1988-eng.pdf DREP-TM-88-25