Fatigue and damage in structural materials studied by X-ray tomography

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    This paper reviews progress using X-ray computed tomography to study damage accumulation. Since its introduction, X-ray microtomography has been used to diagnose the presence of damage. In this review, a wide range of damage-accumulation mechanisms are covered including cavitation, fracture, microcracking, fatigue cracking, and stress corrosion cracking. In this regard, the advantages of attenuation and phase contrast imaging are discussed. This review includes both measurements of damage accumulation, taken postmortem, and the incremental monitoring of damage-accumulation processes during life (sometimes termed four-dimensional tomography). In addition to the qualitative diagnostic studies, the quantitative analysis of tomography images to extract key failure parameters is examined. © Copyright ©2012 by Annual Reviews. All rights reserved.
    Original languageEnglish
    Title of host publicationAnnual Review of Materials Research|Annu. Rev. Mater. Res.
    Pages81-103
    Number of pages22
    Volume42
    DOIs
    Publication statusPublished - Aug 2012

    Publication series

    NameAnnual Review of Materials Research

    Keywords

    • Damage accumulation
    • Fatigue crack
    • Stress corrosion cracking (SCC)
    • X-ray computed tomography (CT)

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