Energy criteria and cumulative damage during fatigue crack growth

Skelton, R. P.; Vilhelmsen, T.; Webster, G. A.

doi:10.1016/s0142-1123(98)00027-9

Cited by 96 publications

(60 citation statements)

References 14 publications

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“…Furthermore, discrepancies exist between the stabilized hysteresis loop shapes of the two models. It has been shown that crack initiation and propagation can be correlated against cyclic strain energy dissipation [26,27], calculated by the area bounded by a hysteresis loop. Therefore, the discrepancies between hysteresis loop shapes need to be rectified.…”

Section: Cyclic Crystal Plasticity Materials Modelmentioning

confidence: 99%

Micromechanical methodology for fatigue in cardiovascular stents

Sweeney

McHugh

McGarry

et al. 2012

International Journal of Fatigue

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Section: Cyclic Crystal Plasticity Materials Modelmentioning

confidence: 99%

Micromechanical methodology for fatigue in cardiovascular stents

Sweeney

McHugh

McGarry

et al. 2012

International Journal of Fatigue

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“…Physical arguments for macroscopic energy-based approaches to fatigue due to Skelton [11][12][13][14][15], and for microscopic fatigue analysis due to Dang Van [16] have been reviewed. Macroscopic energy dissipation criterion was compared with other well-established 8 parameters used for fatigue durability analysis, and found to provide comparable level of predictive ability.…”

Section: Discussionmentioning

confidence: 99%

“…Following Charkaluk et al [10] and Charkaluk and Constantinescu [9], and earlier work of Skelton and co-workers [11][12][13], the functional Ф may be written as:…”

Section: Energy Dissipation Criterionmentioning

confidence: 99%

Comparative assessment of dissipated energy and other fatigue criteria☆

Korsunsky

Dini

Dunne

et al. 2007

International Journal of Fatigue

160

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Amongst a large number of fatigue criteria proposed for the prediction of crack initiation in thermomechanical fatigue, various approaches have been found to be particularly useful for certain categories of material over specific domains of temperature and cyclic strain. However, no particular approach appears to give invariably better predictions than others, so that the choice of the lifing model must be based on validation for the relevant circumstances.In this paper the focus is placed on the Energy Dissipation Criterion (EDC). We present physical arguments in favour of this approach's versatility, and illustrate its performance by the application of this approach both in the macroscopic and micromechanical context.Firstly, by way of illustration we consider cyclic deformation of a Ramberg-Osgood material, with a view to establish the equivalence between the EDC and some selected classical criteria. For this simple but analytically tractable case several interesting results can be established, including the equivalence between EDC and both stress range and strain range lifing criteria.Secondly, we consider fatigue loading of polycrystalline FCC material deforming by the combination of anisotropic linear elasticity and crystal slip. Energy dissipation density in this case is location-dependent even for a polycrystal subjected to macroscopically uniform stress and strain. Crack initiation then is predicted to occur at the 'weakest link' location corresponding to the most intense dissipation.The above two versions of energy dissipation criteria are each compared against experimental data. The comparative performance of Walker strain, Smith-Watson-Topper (SWT) and EDC lifing methods is assessed. It is concluded that EDC provides improved reliability, particularly for cases of complex loading paths and mechanisms interactions.

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“…A critical plastic dissipation criterion for fatigue crack extension in ductile solids was first suggested by Rice [2,74]. Dissipated energy approaches to fatigue crack growth prediction have since been the subject of numerous analytical ( [75][76][77] and experimental [78,79] investigations. The current approach considers the total plastic dissipation per cycle occurring in the reversed plastic zone ahead of the crack.…”

Section: Identification Of Crack Tip Parametersmentioning

confidence: 99%

Effect of crack closure on non-linear crack tip parameters

Antunes

Sousa

Branco

et al. 2015

International Journal of Fatigue

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Crack closure concept has been widely used to explain different issues of fatigue crack propagation. However, some authors have questioned the relevance of crack closure and have proposed alternative concepts. The main objective here is to check the effectiveness of crack closure concept by linking the contact of crack flanks with non-linear crack tip parameters. Accordingly, 3D-FE numerical models with and without contact were developed for a wide range of loading scenarios and the crack tip parameters usually linked to fatigue crack growth, namely range of cyclic plastic strain, crack tip opening displacement, size of reversed plastic zone and total plastic dissipation per cycle were investigated. It was demonstrated that: (i) LEFM concepts are applicable to the problem under study; (ii) the crack closure phenomenon has a great influence on crack tip parameters decreasing their values; (iii) the ΔKeff concept is able to explain the variations of crack tip parameters produced by the contact of crack flanks; and (iv) the analysis of remote compliance is the best numerical parameter to quantify the crack opening level. Therefore the crack closure concept seems to be valid. Additionally, the curves of crack tip parameters against stress intensity factor range obtained without contact may be seen as master curves.

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Energy criteria and cumulative damage during fatigue crack growth

Cited by 96 publications

References 14 publications

Micromechanical methodology for fatigue in cardiovascular stents

Micromechanical methodology for fatigue in cardiovascular stents

Comparative assessment of dissipated energy and other fatigue criteria☆

Effect of crack closure on non-linear crack tip parameters

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