Three-dimensional characterization of microstructurally small fatigue-crack evolution using quantitative fractography combined with post-mortem X-ray tomography and high-energy X-ray diffraction microscopy

Spear, Ashley D.; Li, Shiu Fai; Lind, Jonathan; Suter, Robert; Ingraffea, Anthony R.

doi:10.1016/j.actamat.2014.05.021

Cited by 56 publications

(47 citation statements)

References 52 publications

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“…For fatigue-cracked polycrystalline metals, X-ray tomography has been combined with high-energy X-ray diffraction to characterize both grain structure and crack morphology in 3D [20][21][22]. More recently, the 3D data described in [21] has been converted to high-fidelity finite-element (FE) models and is described in Ref. [22].…”

Section: Introductionmentioning

confidence: 99%

“…The reader is also referred to a review article by Withers and Preuss [19] regarding the use of X-ray tomography to characterize fatigue and damage in various types of structural materials. For fatigue-cracked polycrystalline metals, X-ray tomography has been combined with high-energy X-ray diffraction to characterize both grain structure and crack morphology in 3D [20][21][22]. More recently, the 3D data described in [21] has been converted to high-fidelity finite-element (FE) models and is described in Ref.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical reconstruction of graphite/epoxy composite microstructure based on sub-micron resolution X-ray computed tomography

Czabaj

Riccio

Whitacre

2014

Composites Science and Technology

107

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical reconstruction of graphite/epoxy composite microstructure based on sub-micron resolution X-ray computed tomography

Czabaj

Riccio

Whitacre

2014

Composites Science and Technology

107

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“…For long cracks, the crack front is assumed to be elliptical and flat, and the FCGR is estimated assuming radial propagation from a unique crack center. To account for the tortuous nature of a SC, variations of the standard procedure have been utilized by different authors (Herbig et al, 2011;Spear et al, 2014). However, the above procedures provide an adequate estimation of the FCGR only when analyzing a well-behaved SC (e.g.…”

Section: Introductionmentioning

confidence: 99%

Predicting the 3D fatigue crack growth rate of small cracks using multimodal data via Bayesian networks: In-situ experiments and crystal plasticity simulations

Rovinelli

Sangid

Proudhon

et al. 2018

Journal of the Mechanics and Physics of Solids

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Small crack (SC) propagation accounts for most of the fatigue life of engineering structures subject to high cycle fatigue loading conditions. Determining the fatigue crack growth rate of SCs propagating into polycrystalline engineering alloys is critical to improving fatigue life predictions, thus lowering cost and increasing safety. In this work, cycle-by-cycle data of a SC propagating in a beta metastable titanium alloy is available via phase and diffraction contrast tomography. Crystal plasticity simulations are used to supplement experimental data regarding the micromechanical fields ahead of the crack tip. Experimental and numerical results are combined into a multimodal dataset and sampled utilizing a non-local data mining procedure. Furthermore, to capture the propensity of body-centered cubic metals to deform according to the pencil-glide model, a non-local driving force is postulated. The proposed driving force serves as the basis to construct a data-driven probabilistic SC propagation framework using Bayesian networks as building blocks. The spatial correlation between the postulated driving force and experimental observations is obtained by analyzing the results of the SC propagation Bayesian framework. Results show that the above correlation increases proportionally to the distance from the crack front until the edge of the plastic zone. Moreover, the predictions of the propagation framework show good agreement with experimental observations. Finally, we studied the interaction of a SC with grain boundaries (GBs) utilizing various slip transmission criteria, revealing the tendency of a SC to cross a GB by propagating along the slip directions minimizing the residual Burgers vector with the GB.

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“…Moreover, Figure demonstrates an effort to investigate incremental and small‐scale crack growth in relation to the effect of local microstructure . Specifically, by using three‐dimensional X‐ray imaging, a link between the fatigue crack growth and the crystallography was established providing insight for the development of microstructure‐sensitive modelling.…”

Section: X‐ray and Diffraction Nde Methods Used In Materials Fatiguementioning

confidence: 99%

The use of nondestructive evaluation methods in fatigue: A review

Wisner

Mazur

Kontsos

2020

Fatigue Fract Eng Mat Struct

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Efforts to understand fatigue in materials generally rely on defining relationships between the material response to fatigue loading and the evolving remaining material life portion. Typical measurements and data associated with such relationships include load (stress), displacement (strain), and associated properties (eg, mean stress and strain, energy dissipation, and residual stiffness). In addition to obtaining such measurements, efforts have been made to leverage nondestructive evaluation (NDE) methods to obtain additional information and enhance the description of the material fatigue response, especially its evolution due to interacting material‐microstructure‐property relationships. Given the range of available NDE methods and the number of materials they can be applied to, a critical overview of related investigations is presented in this article. Specifically, the state of the art of applying optical, thermal, acoustic, electromagnetic, X‐ray, and other diffraction NDE methods in fatigue investigations is provided and discussed. The methods are individually described for background and defining their relationship to fatigue, followed by descriptions of their current uses and contributions to enhancing the understanding of fatigue, and their limitations and ways that improvements could be made.

show abstract

Three-dimensional characterization of microstructurally small fatigue-crack evolution using quantitative fractography combined with post-mortem X-ray tomography and high-energy X-ray diffraction microscopy

Cited by 56 publications

References 52 publications

Numerical reconstruction of graphite/epoxy composite microstructure based on sub-micron resolution X-ray computed tomography

Numerical reconstruction of graphite/epoxy composite microstructure based on sub-micron resolution X-ray computed tomography

Predicting the 3D fatigue crack growth rate of small cracks using multimodal data via Bayesian networks: In-situ experiments and crystal plasticity simulations

The use of nondestructive evaluation methods in fatigue: A review

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