Fatigue crack growth rates under variable amplitude load spectra containing tensile underloads [PDF]
, 2003 An extensive research program was performed to investigate the load interaction effect of the combined action of small amplitude high R ratio cycles and large amplitude low R ratio underloads on the crack growth of large cracks.
Zitounis, Vasilios
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Dual boundary element method for axisymmetric crack analysis [PDF]
, 2002 In this paper a dual boundary element formulation is developed and applied to the evaluation of stress intensity factors in, and propagation of, axisymmetric cracks.
Wrobel, LC, Lacerda, LA
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Effect on Fatigue Performance of Residual Stress induced via Laser Shock Peening in Mechanically Damaged 2024‐T351 Aluminium Sheet [PDF]
, 2014 During manufacture and maintenance the fuselage skin of aircraft are susceptible to damage in the form of scratches. Normally not considered to be of major concern to aircraft structural integrity some airlines discovered fatigue cracks had initiated ...
Smyth, Niall
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A study of fatigue crack propagation in quenched and tempered and controlled rolled HSLA steels. [PDF]
, 1987 A range of HSLA steels reflecting the two major processing routes, quench and tempering and controlled rolling, have been tested in fatigue to assess their potential wider application in the offshore Industry.
Callister, D. R.
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Crack closure effect of fatigue crack under cyclic tensile loading
Nihon Kikai Gakkai ronbunshu, 2015 The objective of this study is to evaluate crack growth behavior under cyclic tensile loading considering crack closure effect. Crack growth behavior under cyclic tensile loading on a plate with surface crack is tested.
Akiyuki TAKAHASHI +3 more
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Influence of grain structure and slip planarity on fatigue crack growth in low alloying artificially aged 2xxx aluminium alloys [PDF]
, 2007 The fatigue crack growth behaviour under constant amplitude loading of three low alloying artificially aged 2xxx aluminium alloys with distinct microstructures is analysed. Fatigue crack growth tests show a correlation between fatigue performance and the
Starink, M.J. +3 more
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A Novel Methodology for Calculating Crack Opening Stress under Tension-Compression Cyclic Load
Advances in Materials Science and Engineering, 2021 Crack closure model has been used in several applications on the prediction of fatigue crack growth life, with expression of crack opening stress often serving as milestones.
Lin Zhang, Xiaohui Wei
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Fatigue crack closure: A myth or a misconception? [PDF]
Fatigue & Fracture of Engineering Materials & Structures, 2019 AbstractIn this paper, we have extended our previous study on fatigue crack closure to examine the phenomenon of crack opening displacement (COD) and its impact on the crack tip fields in both 2D and 3D specimen geometries using full‐field experimental measurements and integrated finite element modelling.
Jie Tong +4 more
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Analysis of transformation-induced crack closure [PDF]
Engineering Fracture Mechanics, 1991 Abstract Deformation-induced martensitic transformation around a fatigue crack results in the phenomenon of crack closure. By approximating the residual stress field due to the volume expansion in the transformed zone as that of an edge dislocation pair, a closed-form solution of crack opening as a function of external loading is derived.
Mei, Z., Morris, J.W.
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Three-Dimensional Surface Crack Growth of Maraging Steel Spherical Pressure Shell
Journal of Marine Science and Engineering, 2021 This study focused on the three-dimensional surface crack growth of a spherical pressure shell. Eight maraging steel 18Ni (250) samples were fabricated and tested, and the fatigue crack growth rate curves were obtained.
Yongmei Zhu, Rujun Li, Jiahao Yang
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