Results 21 to 30 of about 69,102 (312)
A fatigue crack initiation model incorporating discrete dislocation plasticity and surface roughness [PDF]
, 2007 Although a thorough understanding of fatigue crack initiation is lacking, experiments have shown that the evolution of distinct dislocation distributions and surface roughness are key ingredients.
Brinckmann, Steffen +1 more
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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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Fracture and Structural Integrity, 2019 In this work, the effect of superimposing of isothermal low cycle fatigue loading to the thermomechanical fatigue loading on the crack propagation behavior of the naturally initiated short crack in Low-carbon nitrogen-controlled 316 stainless steel was ...
Yasuhiro Yamazaki
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Fatigue crack growth rate of brazed joint.
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 1985 It is well known that fatigue crack propergates accompanying a small scale yielding at the crack tip. In filler metal between base metals of brazed joint, fatigue crack growth rate depends possively on the degree of restraint of crack tip plastic deformation by base metals, because the width of crack tip plastic deformation zone is nearly the same with
Ken Sasabe, Isao Okane
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Fatigue Crack Growth Rate Analysis in a Titanium Alloy
Key Engineering Materials, 2008 Reliable prediction of fatigue crack growth rates in aerospace materials and components underpins the so-called defect-tolerant approach to lifing. In this methodology the presence or appearance of defects and cracks in components is accepted. However, safe operation is guaranteed by regular inspections and health monitoring, and ensuring (by means of ...
Alexander M. Korsunsky +2 more
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Low Temperature Fatigue Crack Growth Test and Life Estimation of 7475-T7351 Al-ally by ANN [PDF]
, 2016 In the present wok fatigue crack growth tests have been performed under interspersed mode-I overload on 7475-T7351 Al-alloy. The overloads with an overload ratio of 2 were given at 0C, ndash;30C, ndash;45C, ndash;60C, and ndash;75C at a loading rate of 7
Mohanty, J. R. (J)
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Materials & Design, 2020 In this paper, the parameters of fatigue crack growth rate for Q355J2 steel exposed to air and seawater were presented using the “Paris' law” based on the stress intensity factor (SIF), J-integral, crack tip opening displacement (CTOD) and crack tip ...
Haohui Xin, Milan Veljkovic
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RESEARCH ON FATIGUE CRACK PROPAGATION OF LEAF SPRING UNDER VARIABLE AMPLITUDE LOAD
Jixie qiangdu, 2021 The prediction model of leaf springs fatigue crack growth under variable amplitude loads is mainly Schütz phenomenological model. However, the effect of the crack closure effect on fatigue crack propagation and the relationship between the parameters and
XIANG YuXia, WU ZhiFei
doaj
Study on the short fatigue crack initiation and propagation behavior of 42CrMo
Advances in Mechanical Engineering, 2022 A micro-tensile fatigue test of 42CrMo alloy steel was carried out. The result shows that the crack initiation and propagation of the material could be characterized with randomness and localization.
Nan Xu +3 more
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Fatigue crack growth rate model for metallic alloys [PDF]
Materials & Design, 2010 A model has been created to allow the quantitative estimation of the fatigue crack growth rate in steels as a function of mechanical properties, test-specimen characteristics, stress-intensity range and test-frequency. With this design, the remarkable result is that the method which is based on steels, can be used without modification, and without any ...
R.C. Dimitriu, H.K.D.H. Bhadeshia
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