A high-resolution micro-computed tomography system complemented by specialized hardware and software tools was used to provide quantitative characterization for a tapered ultra-thin wall space component at the National Aeronautics and Space Administration. The computed tomography data served two purposes: first, to assess whether an acceptable discontinuity condition based on component use requirements existed; and second, to provide comprehensive discontinuity measurements for life modeling. Regarding the latter, the measurements were used in a fracture mechanics based model to determine whether the components would be expected to survive (leak within) four service lives. This paper describes component acceptance criteria; the computed tomography system hardware and procedure; detectability and measurement error assessment of the computed tomography system; specialized software needed to aid the characterization process; example computed tomography results; correlation with optical/scanning electron microscope characterization; and an overview of the modeling technique utilizing the computed tomography data.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Critical Role of High Resolution X-ray Micro-computed Tomography for Ultra-thin Wall Space Component Characterization


    Beteiligte:
    Roth, D.J. (Autor:in) / Rauser, R.W. (Autor:in) / Bowman, R.R. (Autor:in) / Martin, R.E. (Autor:in) / Koshti, A.M. (Autor:in) / Morgan, David S. (Autor:in)

    Erschienen in:

    ME - Materials Evaluation ; 72 , 3 ; 383-391


    Erscheinungsdatum :

    2014


    Format / Umfang :

    9 Seiten, 13 Bilder, 4 Tabellen, 8 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Micro crack characterization of metal matrix composites by 3D-refraction-computed-tomography

    Mueller, B.R. / Lange, A. / Harwardt, M. et al. | Tema Archiv | 2004


    Components and Methods for Highest Resolution Computed Tomography

    Uhlmann, N. / Burtzlaff, S. / Hanke, R. et al. | TIBKAT | 2008


    µ-computed tomography for micro-structure characterization of carbon fiber reinforced plastic (CFRP)

    Stoessel, R. / Guenther, T. / Dierig, T. et al. | Tema Archiv | 2011


    Micro computed tomography for in situ analysis of subsurface structure

    Obbard, Rachel W. / Sarrazin, Philippe / Vo, Nghia T. et al. | IEEE | 2021


    Mobile Computed Tomography

    Hess, J. / Eberhorn, M. | TIBKAT | 2008