Effects of short cracks on fatigue life calculations

Date

1996-01-01

Author

Kaynak, Cevdet
Baker, T.J.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

175
views

0
downloads

In this study, the potential impact of the short crack problem in En7A steel with a high content of elongated MnS inclusions has been observed. Experimental short crack data were compared first with the predicted S-N curves determined using long crack growth parameters and second with the calculated lives using only long crack data and using both short crack and long crack data. All these life predictions revealed that long crack data alone cannot be used in fatigue lifetime analyses that treat short crack growth, because they can all lead to dangerous over-predicted lives.

Subject Keywords

Short crack, Fatigue life

URI

https://hdl.handle.net/11511/39944

Journal

International Journal of Fatigue

DOI

https://doi.org/10.1016/0142-1123(95)00075-5

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Effect of soft fine particles on the kinetics and energetics of grinding hard coarse particles Yılmaz, Selim; Hoşten, Çetin; Department of Mining Engineering (2016) The main objective of this study is to investigate breakage parameters of a narrow size fraction of coarse particles of a hard mineral when ground in a mixture with fine particles of a soft mineral. For this purpose, quartz and calcite were selected as mixture components varying appreciably in hardness (quartz mohs scale:7 and calcite mohs scale:3) but having quite similar densities. Mixture feeds comprised of -1.18+0.85 mm quartz (hard and coarse) and -106 µm calcite (soft and fine) at various proportions ...
A comparison of short and long fatigue crack growth in steel Kaynak, Cevdet; Baker, T.J. (1996-01-01) In this study, the growth behaviour of short fatigue cracks in En7A steel with a high content of elongated MnS inclusions has been investigated by generating and evaluating short crack growth data for the six principal specimen orientations. The anomalous initiation and growth behaviour of short cracks was also compared with that of long crack data for the same material and loading conditions determined before. This comparison revealed the sub-threshold initiation and faster growth rate of short cracks comp...
Behaviour of the reinforced concrete face slabs of concrete faced rockfill dams during impounding Arıcı, Yalın (2013-09-01) The primary goal of this study was to examine the relative effects of various factors that affect the cracking of the face slab of a concrete faced rockfill dam (CFRD). Rigorous simulation of the construction and impoundment stages were conducted in sequential phases during which the rockfill and the rockfill-face slab interface were modelled with elasto-plastic models that were calibrated to existing test data. The face slab was modelled using embedded reinforcements with a total strain crack model. The re...
Effect of bentonite composition on the HP, HT rheological properties of water-based drilling fluids Kuru, E; Demirci, S; Ozturk, MY (1998-12-01) In this study, effects of six bentonites on the viscosity and filtration loss characteristics of water-based drilling fluids have been investigated. Rheological properties of the drilling fluids prepared by API standards were determined by using high temperature (0-100 degrees C) rotational viscometer. The filtration losses of these drilling fluids were measured using high temperature (0-232 degrees C) and high pressure (0-2000 psi) filtration loss measurement equipment.
Effect of swaging on microstructure and tensile properties of W-Ni-Fe alloys DURLU, NURİ; Caliskan, N. Kaan; Bor, Sakir (Elsevier BV, 2014-01-01) The objective of this study was to investigate the effect of swaging on the microstructure and tensile properties of high density two phase alloys 90W-7Ni-3Fe and 93W-4.9Ni-2.1Fe. Samples were liquid phase sintered under hydrogen and argon at 1480 degrees C for 30 min and then 15% cold rotary swaged. Measurement of microstructural parameters in the sintered and swaged samples showed that swaging slightly increased tungsten grain size in the longitudinal direction and slightly decreased tungsten grain size i...

Citation Formats

C. Kaynak and T. J. Baker, “Effects of short cracks on fatigue life calculations,” International Journal of Fatigue, pp. 25–31, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39944.