Bragg-edge elastic strain tomography

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dc.contributor.authorWensrich, CMen_AU
dc.contributor.authorGregg, AWTen_AU
dc.contributor.authorHendriks, JNen_AU
dc.contributor.authorAggarwal, Ren_AU
dc.contributor.authorTremsin, ASen_AU
dc.contributor.authorShinohara, Ten_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorMeylan, MHen_AU
dc.contributor.authorKisi, EHen_AU
dc.contributor.authorKirstein, Oen_AU
dc.date.accessioned2021-03-10T23:15:58Zen_AU
dc.date.available2021-03-10T23:15:58Zen_AU
dc.date.issued2017-11-27en_AU
dc.date.statistics2021-03-10en_AU
dc.description.abstractTime-of-flight neutron imaging has now progressed to the point where high-resolution energy-resolved imaging is possible. Among many other applications, this technology allows the imaging of elastic strain fields within polycrystalline solids using a geometry identical to a traditional radiograph. 3D strain tomography from measurements such as these has been a current topic of research over the past decade. The authors recently solved this tomography problem and provided a reconstruction algorithm for the set of all systems subject to external loads in the absence of residual or eigenstrain. In this paper we provide an overview of the recent experiment carried out at the J-PARC pulsed neutron source in Japan focused on demonstrating this algorithm. This now represents the first-ever practical demonstration of Bragg-edge neutron transmission strain tomography in a non-axisymmetric system. The results of the experiment are presented along with the validation of the reconstructed field through Digital Image Correlation and traditional constant wavelength neutron strain scanning within the Australian Centre for Neutron Scattering at ANSTO. An outlook on potential strategies for reconstruction in the general case is also provided. © 2017 Engineers Australiaen_AU
dc.identifier.booktitle9th Australasian Congress on Applied Mechanics (ACAM9), University of NSW, Sydney, 27-29 November 2017en_AU
dc.identifier.citationWensrich, C. M., Gregg, A. W. T., Hendriks, J. N., Aggarwal, A. S., Tremsin, A. S., Shinohara, T., Luzin, V., Meylan, M. H., Kisi, E. H. & Kirstein, O. (2017). Bragg-edge elastic strain tomography. Paper presented to the 9th Australasian Congress on Applied Mechanics (ACAM9), University of NSW, Sydney, 27-29 November 2017. In Prusty, G. & Paradowska, A. (eds) 9th Australasian Congress on Applied Mechanics (ACAM9), University of NSW, Sydney, 27-29 November 2017, (pp. 765-772). Retrieved from: https://search.informit.org/doi/10.3316/informit.394657722255397en_AU
dc.identifier.conferenceenddate29 November 2017en_AU
dc.identifier.conferencename9th Australasian Congress on Applied Mechanics (ACAM9)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate27 November 2017en_AU
dc.identifier.editorsPrusty, G. & Paradowska, A.en_AU
dc.identifier.isbn9781925627022en_AU
dc.identifier.pagination765-772en_AU
dc.identifier.urihttps://search.informit.org/doi/10.3316/informit.394657722255397en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10517en_AU
dc.language.isoenen_AU
dc.publisherEngineers Australiaen_AU
dc.subjectStrainsen_AU
dc.subjectStressesen_AU
dc.subjectNeutronsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectAlgorithmsen_AU
dc.subjectTomographyen_AU
dc.titleBragg-edge elastic strain tomographyen_AU
dc.typeConference Paperen_AU
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