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de Rijk, P. (author), Schijve, J. (author)A second series of exploratory acoustic fatigue tests using a shaker. A second series of exploratory acoustic fatigue tests was carried out, again employing simple specimens mounted on a shaker. Strain measurements were compared with calculations. Crack growth initiated by a central notch was observed. A comparison was made between three types...report 1977
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Schijve, J. (author), de Rijk, P. (author)Flight-simulation tests were carried out under different loading conditions. Omitting low-amplitude gust cycles had a small effect on the crack rate. Truncation of infrequently occurring high-amplitude gust cycles to a lower level considerably accelerated crack growth. A 25 percent increase of the design stress level induces about 2.5 times...report 1971
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Schijve, J. (author), de Rijk, P. (author)Full-scale fatigue tests were previously carried out on wing tension skins under random flight loading, program loading and constant-amplitude loading. Tension skins left from these tests were partly stripped. Tensile test revealed fatigue crack nuclei at various locations. Results have some meaning with respect to the frequency of occurrence of...report 1967
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Schijve, J. (author), de Rijk, P. (author)Constant-amplitude tests and simplified flight-simulation tests with 10 or 50 gust cycles per flight were performed. The effect of the ground-to-air cycle is compared with the Palmgren-Miner prediction. Optical and electron microscope observations of the fracture are presented.report 1966
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- de Rijk, P. (author), Schijve, J. (author) report 1966
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Schijve, J. (author), Broek, D. (author), de Rijk, P. (author), Nederveen, A. (author), Sevenhuysen, P.J. (author)Fatigue tests were carried out on full-scale tension skins of a wing center section of 7075-T6 material. Variable-amplitude tests were carried out with the following load sequences: (a) random load, (b) program load, (c) random load with GTAC (ground-to-air cycles) and (d) program load with GTAC. Constant-amplitude tests were carried out with...report 1965
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Schijve, J. (author), de Rijk, P. (author)Sheet specimens of 2024-T3 Alclad and 7075-T6 Clad were tested in a test hall and outside this hall. Each specimen contained five cracks. The crack growth data allow comparisons to be made (I) between indoors and outdoors (2) between random and program loading (3) between these loadings with and without ground-to-air cycles and (4) between the...report 1965
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Schijve, J. (author), de Rijk, P. (author)Tests were carried out at 20°C and 2000 cpm, at 150°C and 2000 cpm and at 150°C and 20 cpm. Results indicate a temperature effect as well as a frequency effect. Crack extension due to creep was considered, a few provisional results being presented. Results are analysed and compared with relevant data from the literature.report 1965
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- Nederveen, A. (author), de Rijk, P. (author), Broek, D. (author), Schijve, J. (author) report 1964