Energy-resolved neutron imaging for reconstruction of strain introduced by cold working

Anton S. Tremsin, Winfried Kockelmann, Joe F. Kelleher, Anna M. Paradowska, Ranggi S. Ramadhan, Michael E. Fitzpatrick

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    3 Citations (Scopus)
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    Abstract

    Energy-resolved neutron transmission imaging is used to reconstruct maps of residual strains in drilled and cold-expanded holes in 5-mm and 6.4-mm-thick aluminum plates. The possibility of measuring the positions of Bragg edges in the transmission spectrum in each 55 × 55 µm 2 pixel is utilized in the reconstruction of the strain distribution within the entire imaged area of the sample, all from a single measurement. Although the reconstructed strain is averaged through the sample thickness, this technique reveals strain asymmetries within the sample and thus provides information complementary to other well-established non-destructive testing methods.

    Original languageEnglish
    Article number48
    Number of pages12
    JournalJournal of Imaging
    Volume4
    Issue number3
    DOIs
    Publication statusPublished - 28 Feb 2018

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    Bibliographical note

    This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution
    (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

    Keywords

    • Bragg edge imaging
    • Neutron transmission
    • Residual strain

    ASJC Scopus subject areas

    • Radiology Nuclear Medicine and imaging
    • Computer Vision and Pattern Recognition
    • Computer Graphics and Computer-Aided Design
    • Electrical and Electronic Engineering

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