Print Email Facebook Twitter Flight simulation fatigue tests on lugs with holes expanded according to the split-sleeve cold work method Title Flight simulation fatigue tests on lugs with holes expanded according to the split-sleeve cold work method Author Schijve, J. Jacons, F.A. Meulman, A.E. Institution National Aerospace Laboratory NLR Date 1978-09-21 Abstract Flight simulation tests on 2024-T3 and 7075-T6 lug specimens indicated significant fatigue life improvements obtained by expanding the holes in accordance with the split-sleeve cold work method. Geometrical distortions induced by the expansion were measured. The significance of residual stresses is analysed with reference to depth of penetration of cold work, to relaxation of residual stress by cyclic loads and to some other practical aspects. Subject residual stressfatigue testholes expansionfastenerscyclic loadscold workingsleevesaluminium alloysprestressingrelaxationfatigue life To reference this document use: http://resolver.tudelft.nl/uuid:de3d7a6e-b5da-4a64-975c-bbd0594fcb88 Publisher Nationaal Lucht- en Ruimtevaartlaboratorium Access restriction Campus only Source NLR-TR 78131 U Part of collection Aerospace Engineering Reports Document type report Rights (c) 1978 National Aerospace Laboratory NLR Files PDF NLR_TR_78131_U.pdf 19.07 MB Close viewer /islandora/object/uuid:de3d7a6e-b5da-4a64-975c-bbd0594fcb88/datastream/OBJ/view