Results 331 to 340 of about 3,738,609 (380)

The fatigue limits of metals

Materials Science and Engineering, 1976
Abstract Recent studies of cyclic deformation in copper single crystals have identified the critical properties of persistent slip bands, known to be the sites of crack nucleation and Stage I propagation in fatigue. From this work, it is concluded that, for almost all metals and alloys, a particular stress and strain will be required to form ...
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The fatigue limit and its elimination

Fatigue & Fracture of Engineering Materials & Structures, 1999
The classical fatigue limit of ferrous metals is a consequence of testing materials at a constant range of cyclic stress and determining the cyclic stress range below which fatigue failures do not occur. This classical fatigue limit of a material is equated to the condition for which fatigue cracks can not propagate beyond microstructural barriers.This
O’donnell, Miller
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Beyond HCF – Is there a fatigue limit?

Materialwissenschaft und Werkstofftechnik, 2008
AbstractThe paper gives an overview to the present state of research on fatigue strength and failure mechanisms at very high number of cycles (N>107). Testing facilities are listed. A classification of materials with typical S‐N curves and influencing factors like notches, residual stresses and environment are given.
Christina Berger, Brita Pyttel, Daniela Schwerdt   +2 more
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The mechanical fatigue limit for rubber

Journal of Applied Polymer Science, 1965
AbstractInvestigations of the dynamic cut growth behavior of vulcanized rubbers indicate that there is a minimum tearing energy at which mechanical rupture of chains occurs. The limiting value is characteristic of each vulcanizate, but is in the region of 0.05 kg./cm.
G. J. Lake, P. B. Lindley
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Tensile Fatigue Limits of Prosthodontic Adhesives

Journal of Dental Research, 1991
Tensile fatigue limits and ultimate tensile strengths of some prosthodontic adhesive systems were determined. Ni-Cr-Be cylinders were: electro-etched, chemically etched, and sandblasted prior to being bonded end-to-end with BIS-GMA and 4-META adhesives.
Ana M. Diaz-Arnold, T.J. Piotrowskp, S.A. Aquilino   +2 more
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Is the temperature plateau of a self-heating test a robust parameter to investigate the fatigue limit of steels with thermography?

, 2018
A critical aspect of standard test methods for fatigue characterization is that they do not provide any information on heat dissipation in the material and involve very expensive experimental campaigns in time and costs.
R. D. Finis, D. Palumbo, M. Silva, U. Galietti   +3 more
semanticscholar   +1 more source

Mechanical Fatigue Limit for Rubber

Rubber Chemistry and Technology, 1966
Abstract Investigations of the dynamic cut growth behavior of vulcanized rubbers indicate that there is a minimum tearing energy at which mechanical rupture of chains occurs. The limiting value is characteristic of each vulcanizate, but is in the region of 0.05 kg/cm.
P. B. Lindley, G. J. Lake
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Fatigue limits of steels and stress gradient*

Strength of Materials, 2011
Based on generalizing the results of numerous experimental investigations, the empirical relationships between the fatigue limit of steels and the stress gradient are proposed and justified, which take into account the fatigue damage behavior of smooth specimens and specimens with stress concentrators.
Troshchenko, V.T., Khamaza, L.A.
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Fatigue-Limit Effect on Variable-Amplitude Fatigue of Stiffeners

Journal of the Structural Division, 1979
The effect of the constant-amplitude fatigue limit on the variable-amplitude fatigue life was determined experimentally. Tensile specimens with transverse stiffeners welded either automatically or manually were tested in such a way that, from one set of tests to another, an increasing number of cycles fell below the fatigue limit.
Pedro Albrecht, Ian M. Friedland
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Fatigue damage in polycrystalline copper below the fatigue limit

International Journal of Fatigue, 1994
Abstract Surface fatigue damage was studied in polycrystalline copper cycled with constant plastic strain amplitudes below the fatigue limit. Fatigue damage in this interval of cyclic loading is manifested on the surface of the material as bands of localized cyclic slip: persistent slip bands.
A. Vašek, Jaroslav Polák
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