Neutron strain tomography using Bragg-edge transmission
Predicting the fatigue lifetime of components relies on a knowledge of the residual elastic strain present throughout the bulk of the material. Non-destructively mapping the complete strain distribution throughout large volumes presents significant practical challenges. Recently a technique known as...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2012
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| _version_ | 1797059054869151744 |
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| author | Abbey, B Zhang, S Xie, M Song, X Korsunsky, A |
| author_facet | Abbey, B Zhang, S Xie, M Song, X Korsunsky, A |
| author_sort | Abbey, B |
| collection | OXFORD |
| description | Predicting the fatigue lifetime of components relies on a knowledge of the residual elastic strain present throughout the bulk of the material. Non-destructively mapping the complete strain distribution throughout large volumes presents significant practical challenges. Recently a technique known as Bragg-edge neutron transmission has been developed as a means of non-destructive bulk elastic strain evaluation. Whilst conventional radiography measures the integral absorption, Bragg-edge neutron transmission probes the average strain along the incident beam direction. A "strain radiogram" is thus a two-dimensional average projection of the strain within the sample. Here we demonstrate how strain radiograms can be used for "neutron strain tomography" and we present and contrast two different approaches to the problem of characterising spatially resolved elastic strains. © Carl Hanser Verlag GmbH andCo. KG. |
| first_indexed | 2024-03-06T19:58:50Z |
| format | Journal article |
| id | oxford-uuid:26923c0f-5f27-49e4-b412-120f338f22d6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:58:50Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:26923c0f-5f27-49e4-b412-120f338f22d62022-03-26T12:01:48ZNeutron strain tomography using Bragg-edge transmissionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:26923c0f-5f27-49e4-b412-120f338f22d6EnglishSymplectic Elements at Oxford2012Abbey, BZhang, SXie, MSong, XKorsunsky, APredicting the fatigue lifetime of components relies on a knowledge of the residual elastic strain present throughout the bulk of the material. Non-destructively mapping the complete strain distribution throughout large volumes presents significant practical challenges. Recently a technique known as Bragg-edge neutron transmission has been developed as a means of non-destructive bulk elastic strain evaluation. Whilst conventional radiography measures the integral absorption, Bragg-edge neutron transmission probes the average strain along the incident beam direction. A "strain radiogram" is thus a two-dimensional average projection of the strain within the sample. Here we demonstrate how strain radiograms can be used for "neutron strain tomography" and we present and contrast two different approaches to the problem of characterising spatially resolved elastic strains. © Carl Hanser Verlag GmbH andCo. KG. |
| spellingShingle | Abbey, B Zhang, S Xie, M Song, X Korsunsky, A Neutron strain tomography using Bragg-edge transmission |
| title | Neutron strain tomography using Bragg-edge transmission |
| title_full | Neutron strain tomography using Bragg-edge transmission |
| title_fullStr | Neutron strain tomography using Bragg-edge transmission |
| title_full_unstemmed | Neutron strain tomography using Bragg-edge transmission |
| title_short | Neutron strain tomography using Bragg-edge transmission |
| title_sort | neutron strain tomography using bragg edge transmission |
| work_keys_str_mv | AT abbeyb neutronstraintomographyusingbraggedgetransmission AT zhangs neutronstraintomographyusingbraggedgetransmission AT xiem neutronstraintomographyusingbraggedgetransmission AT songx neutronstraintomographyusingbraggedgetransmission AT korsunskya neutronstraintomographyusingbraggedgetransmission |