Studies on Impact Fatigue : Part 1, Impact Fatigue Testing Machine and Impact Fatigue on Mild Steel
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TLDR
In this paper, an axial load impact fatigue testing machine was designed and manufactured, which makes it possible to carry out a series of tests ranging from the ordinary fatigue test to the test under loads including some amount of impact load.Abstract:
An axial load impact fatigue testing machine was newly designed and manufactured, which makes it possible to carry out a series of tests ranging from the ordinary fatigue test to the test under loads including some amount of impact load. Using this machine, plain and notched specimens of 0.11% carbon steel were tested under fully reversed sinusoidal axial load and under impact fatigue load. It was observed that, under impact load, fatigue fractures occurred at the stress levels lower than the ordinary endurance limits for both of the specimens.read more
Citations
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On the impact fatigue crack growth behaviour of metallic materials
T. Tanaka,H. Nakayama,K. Kimura +2 more
TL;DR: The impact fatigue crack growth characteristics of a low carbon steel and an aluminium alloy were studied in this article, where an impact fatigue testing machine of the Hopkinson bar type was used to conduct a series of crack growth tests under simple impact stresses.
Journal ArticleDOI
Critical distance model for the fatigue life analysis under low-velocity impacts of notched specimens
TL;DR: In this article, a fatigue life estimation method was proposed for the notched specimens under low-velocity repeated impact loadings, where the stress concentration effect at the notch root was taken into account by the implementation of the Theory of Critical Distance, and the continuous variation of strain ranges at the critical point due to the plastic strain accumulation was considered by the mean strain modification.
Journal ArticleDOI
An investigation on the impact fatigue characteristics of valve leaves for small hermetic reciprocating compressors in a new automated test system
TL;DR: In this article, a unique automated impact fatigue test system has been designed and produced, which enables to carry out impact fatigue tests of the compressor valve leaves under the desired impact velocities.
Journal ArticleDOI
Installation for fatigue testing of materials and their welded joints under high-cycle impact loading
B. S. Shul'ginov,V. A. Degtyarev +1 more
TL;DR: In this article, the authors present a description of an installation designed for the determination of the characteristics of impact fatigue of alloys and their welded joints according to the results of testing of large-sized specimens in the entire range of the load ratio 0≤R < 1.
Journal ArticleDOI
Estimating durability of steels at repeated bending impacts
TL;DR: In this paper, a new parameter η is proposed in order to correlate the durability at repeated impacts with the Charpy V Notch (CVN) impact energy, and the importance of the shape and dimensions of specimens and the stiffness of supports are highlighted.
References
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On the Fatigue Testing Machine for Gears and Some Test Results
Toshio Aida,Yoshio Terauchi +1 more
TL;DR: In this article, the authors devised a new fatigue testing machine of simple construction for gears, using a fuel injection pump of the Diesel engine as load source and a maximum pressure indicator as regulator of maximum load acting on gear tooth.
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