Creep damage models and their applications for crack growth analysis in pipes: A review

Meng, Qinghua; Wang, Zhenqing

doi:10.1016/j.engfracmech.2015.09.055

Cited by 81 publications

(30 citation statements)

References 166 publications

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“…Several creep damage models have been presented in the literature in the last 2 decades, and a comprehensive review on the same has been published recently by Meng and Wang. 9 Most of the models are generally based on stress; however, some researchers considered ductility-based creep damage models. 7,8 General equation describing the evolution of stress-based damage under a multiaxial stress state has been proposed by Hayhurst, 10…”

Section: Stress-based Creep Damage Functionmentioning

confidence: 99%

“…In the past, several creep damage models have been published in the open literature. Meng and Wang recently presented a review on the applications of isotropic and anisotropic damage models to solve problems involving creep‐crack growth. In this context, the previous stress‐based model proposed by Hayhurst and ductility‐based models proposed by Cocks and Ashby and Bendick were used.…”

Section: Introductionmentioning

confidence: 99%

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Creep‐fracture resistance parameters determination based on stress and ductility damage models

Shlyannikov

Tumanov

2018

Fatigue Fract Eng Mat Struct

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The stress, strain rate, and process zone with respect to the creep‐crack growth in pure modes I and II are analysed by using damage‐evolution equations. The damage models for the fracture of the process zone are represented using a stress‐ and ductility‐based formulation. According to the stress‐based model, 2 expressions are proposed to describe the stress‐sensitive nature of a multiaxial rupture behaviour. Following the ductility model, new multiaxial failure strain conditions are derived. Both damage‐free and defective creeping solids have been studied. The variations in the creep stress or strain and crack‐tip governing parameter in terms of the creep In‐integral with respect to time and the evolution of creep damage are analysed using a finite element model. The effect of the introduced creep stress intensity factor as a function of the creep time, loading biaxiality, and creep damage models is discussed in detail.

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Section: Stress-based Creep Damage Functionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Creep‐fracture resistance parameters determination based on stress and ductility damage models

Shlyannikov

Tumanov

2018

Fatigue Fract Eng Mat Struct

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“…Life cycle for validated material characterisation used in high temperature plant could take upto 10-15 years. Understanding damage and quantifying it to predict creep rupture and crack initiation and growth from mainly accelerated tests has been the subject of many years of research [9][10][11][12][13][14]. This has been with the chief aim of reducing the production and verification time cycle of new alloys.…”

Section: Background To Creep Damage Modellingmentioning

confidence: 99%

“…Reviews of creep CDM models [13,14] highlights in depth the various isotropic damage models and their corresponding microstructure damage mechanisms. In most cases they need to establish complex constitutive relationships and define a larger number of variables to perform the predictions.…”

Section: Background To Creep Damage Modellingmentioning

confidence: 99%

A unified multiscale ductility exhaustion based approach to predict uniaxial, multiaxial creep rupture and crack growth

Nikbin¹

2017

Engineering Fracture Mechanics

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“…Important advances in creep damage models for crack growth analysis have been made in the last two decades as scientists and engineers strive to imbue continuum-based models with more realistic details at microstructure damage mechanisms in the creep process [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Such damage models can be also found in [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Intermediate asymptotic behavior of the stress and damage fields in the vicinity of the mixed-mode crack tip under creep regime

Степанова¹,

Mironova²

2017

Collection of Selected Papers of the III International Conference on Information Technology and Nanotechnology

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The creep crack problems in damaged materials under mixed mode loading (Mode I and Mode II loading) in the framework of creep-damage coupled formulation are considered. The class of the self-similar solutions to the plane creep crack problems in a damaged medium under mixed-mode loading is given. With the similarity variable and the self-similar representation of the solution for a power-law creeping material and the Kachanov-Rabotnov power-law damage evolution equation the near crack-tip stresses, creep strain rates and continuity distributions for plane stress and plane strain conditions are obtained. The similarity solutions are based on the hypothesis of the existence of the completely damaged zone near the crack tip. It is shown that the asymptotic analysis of the near crack-tip fields gives rise to the nonlinear eigenvalue problems. The technique permitting to find all the eigenvalues numerically is proposed and numerical solutions of the nonlinear eigenvalue problems arising from the mixed-mode crack problems in a power-law medium under plane stress conditions are obtained. Using the approach developed the eigenvalues different from the eigenvalues corresponding to the Hutchinson-Rice-Rosengren (HRR) problem are found. The angular distributions of the stress and the continuity fields are selected as the crack tip fields of interest. Having obtained the eigenspectra and eigensolutions the geometry of the completely damaged zone in the vicinity of the crack tip is found for all values of the mixity parameter.

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Creep damage models and their applications for crack growth analysis in pipes: A review

Cited by 81 publications

References 166 publications

Creep‐fracture resistance parameters determination based on stress and ductility damage models

Creep‐fracture resistance parameters determination based on stress and ductility damage models

A unified multiscale ductility exhaustion based approach to predict uniaxial, multiaxial creep rupture and crack growth

Intermediate asymptotic behavior of the stress and damage fields in the vicinity of the mixed-mode crack tip under creep regime

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