Prediction of fatigue crack growth based on low cycle fatigue properties

Shi, Kun; Cai, Leyi; Chen, L.; Wu, Shengchuan; Bao, Chen

doi:10.1016/j.ijfatigue.2013.11.007

Cited by 31 publications

(26 citation statements)

References 18 publications

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“…This relationship has been developed by Fajdigaa and Sramlb:

Δ_{p l} = n^{*} ((), K^{2} false/ E_{r} σ_{y}),

where n * is a temperature dependent material constant. As the crack extends through eight or more grains, the short crack theory has no influence on the crack growth and continuum damage mechanics approaches also have no physical meaning for crack growth information . In the framework of the LEFM, the propagation rate of long cracks can be described by the Paris' equation by the following:

\frac{d a}{d N} = C_{0} {((), normalΔ K)}^{m_{0}} .

…”

Section: Fatigue Rolling Die Under Fracture Mechanicsmentioning

confidence: 99%

Modeling fatigue crack and spalling for rolling die under hot milling

Tolcha

Altenbach

Tibba

2019

Fatigue Fract Eng Mat Struct

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In hot milling process, rolling die is subjected to nonsteady conditions which can rise the combinations of fatigue and spalling damage mechanism. An understanding about the failure mechanism of the rolling die is essential under hot rolling process. Fatigue crack growth and spalling process are governed by highly concentrated strain and stress in the crack tip region. Based on the theory of elastic‐plastic fracture mechanics, an analytical model are presented in this paper to determine the elliptical crack growth rate and spalling damage mechanism. The model includes new proposed constitutive equations for fatigue and spalling crack growth. To verify the models, finite element simulation and experimental data are considered. The results show good agreement with finite element simulation and experimental data.

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“…This relationship has been developed by Fajdigaa and Sramlb:

Δ_{p l} = n^{*} ((), K^{2} false/ E_{r} σ_{y}),

\frac{d a}{d N} = C_{0} {((), normalΔ K)}^{m_{0}} .

…”

Section: Fatigue Rolling Die Under Fracture Mechanicsmentioning

confidence: 99%

Modeling fatigue crack and spalling for rolling die under hot milling

Tolcha

Altenbach

Tibba

2019

Fatigue Fract Eng Mat Struct

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“…Finally, when microstructural anisotropy is present, as encountered in pearlitic rail steels, the models by Larijani et al . or Shi et al . can be employed to calculate crack propagation rates and the resulting fatigue life under RCF conditions.…”

Section: Implications In Fatigue Designmentioning

confidence: 99%

“…For the case of the presence of water in the initial stages of crack propagation, the models by Fajdiga and Sraml 23 and Brouzoulis and Ekh 29 can be employed to calculate crack propagation rates. Finally, when microstructural anisotropy is present, as encountered in pearlitic rail steels, the models by Larijani et al 9 or Shi et al 30 can be employed to calculate crack propagation rates and the resulting fatigue life under RCF conditions. Crack branching can be also taken into account in fatigue design of rails.…”

Section: M P L I C a T I O N S I N F A T I G U E D E S I G Nmentioning

confidence: 99%

Rolling contact fatigue cracking in rails subjected to in‐service loading

Haidemenopoulos

Sarafoglou

Christopoulos

et al. 2016

Fatigue Fract Eng Mat Struct

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Rolling contact fatigue (RCF) is one of the most important failure mechanisms in rails with significant cost‐ and safety‐related implications on the operation of railway systems. In this work, a metallurgical analysis of RCF crack initiation and propagation, including geometrical characteristics of RCF cracks – length, depth from surface, angle of propagation and spacing between cracks, is presented. The role of proeutectoid ferrite in crack initiation has been studied. Analysis of the fracture surface of an RCF crack revealed a ductile initiation zone followed by a quasi‐cleavage crack propagation. Iron oxide formed in the interior of all cracks in rails exposed to stagnant water with implications to crack propagation rate because of crack closure effects. Sequential sectioning parallel to the rolling surface revealed that RCF cracks possess convoluted surfaces. The crack trace expands with depth from the rolling surface. Subsurface crack initiation has also been documented.

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“…Models based on the calculation of the crack tip with hardening have been developed by many researchers [19], [26], [27], [29], [30]. These models rely on calculating the plasticized monotonic and cyclical areas created by the cyclical stress; it is generally assumed that the crack propagation is proportional to the energy lost in the plasticized zones.…”

Section: Introductionmentioning

confidence: 99%

A Model for Fatigue Crack Growth in the Paris Regime under the Variability of Cyclic Hardening and Elastic Properties

Kebir

Benguediab

Imad

2017

Fatigue of Aircraft Structures

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Over the last 60 years, several models have been developed governing different zones of fatigue crack growth from the threshold zone to final failure. The best known model is the Paris law and a number of its based on mechanical, metallurgical and loading parameters governing the propagation of cracks. This paper presents an analytical model developed to predict the fatigue crack propagation rate in the Paris regime, for different material properties, yield strength (σy), Young’s modulus (E) and cyclic hardening parameters (K’, n’) and their influence by variability. The cyclic plastic deformation at a crack tip or any other cyclic hardening rule may be used to reach this objective, for to investigate this influence, these properties of the model are calibrated using available experimental data in the literature. This FCGR model was validated on Al-alloys specimens under constant amplitude load and shows good agreement with the experimental results.

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Prediction of fatigue crack growth based on low cycle fatigue properties

Cited by 31 publications

References 18 publications

Modeling fatigue crack and spalling for rolling die under hot milling

Modeling fatigue crack and spalling for rolling die under hot milling

Rolling contact fatigue cracking in rails subjected to in‐service loading

A Model for Fatigue Crack Growth in the Paris Regime under the Variability of Cyclic Hardening and Elastic Properties

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