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- Schijve, J. (author) report 1977
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- Schijve, J. (author) report 1977
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Schijve, J. (author), Jacobs, F.A. (author), Tromp, P.J. (author)Flight-simulation tests based on a standardized gust load spectrum were carried out in normal air, very dry air and salt water. Specimen thicknesses were t = 2 mm and t = 10 mm, mean stress in flight was 70 or 55 MN/m². In all cases a significant effect of the environment was found. Fatigue lives for t = 10 ram were much shorter than for t = 2...report 1976
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Schijve, J. (author), Jacobs, F.A. (author), Tromp, P.J. (author)Flight-simulation tests were carried out on sheet specimens notched "by an open hole (Kt = 2.66). The material was 2024-T3 in three conditions; Alclad, bare and chemically milled. The crack initiation period and the crack propagation period were considerably shorter for the Alclad material. The significance of the cladding, both for constant...report 1976
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- Schijve, J. (author), Arkema, W.J. (author) report 1976
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- Schijve, J. (author) report 1976
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- Schijve, J. (author) report 1976
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Wanhill, R.J.H. (author), Schijve, J. (author), Jacobs, F.A. (author), Schra, L. (author)The following text is given in the format required for presentation at the Conference and Exhibition "Fatigue Testing and Design", to be held in the City University, London, 5-9 April 1976. The report gives a comparison between the fatigue performances of several sheet and forging materials under gust spectrum loading representing the lower wing...report 1975
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Schijve, J. (author)The present review consists of three contributions, prepared by (l) The National Aerospace Laboratory NLR, (2) The Aerospace Department of the Delft University of Technology and (3) The Fokker Aircraft Industries. A detailed list of subjects is given in the contents of the review.report 1975
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- Schijve, J. (author) report 1975
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- Schijve, J. (author) report 1975
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- Schijve, J. (author), de Koning, A.U. (author) report 1975
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- Schijve, J. (author) report 1975
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Schijve, J. (author), Jacobs, F.A. (author), Tromp, P.J. (author)Tests were carried out on open-hole specimens, lugs and riveted strap joints of 2024-T3 and 7075-T6 materials. The effects of design stress level, truncating high-amplitude gust loads and omitting low-amplitude gust cycles were stuaied. Observations of the open-hole specimens include data on crack initiation, crack closure and damage increments....report 1974
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- Schijve, J. (author) report 1974
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- Schijve, J. (author), van Lipzig, H.T.M. (author) report 1974
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- Schijve, J. (author) report 1974
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Schijve, J. (author), Jacobs, F.A. (author), Tromp, P.J. (author)Specimens of 2024-T3 and 7075-T6 were tested at 10, 1 and 0.1 cps. Values of mean stress in flight were 10.0, 8.5, 7.0, 5.5 and 4.0 kg/mm(2). The analysis of the results bears upon the frequency effect and its significance for inspection periods in service, the effect of stress level, a comparison between the two alloys, the prediction of crack...report 1973
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Schijve, J. (author)Results are presented from crack propagation tests on aliuninium alloy sheet specimens tested by flight-simulation loading. Five design stress levels were adopted. The usefulness of the stress intensity factor for correlating the data was evaluated. The discussion includes various approaches for predicting crack rates unaer service loading,...report 1973
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- Schijve, J. (author) report 1973