X-ray Strain and Stress Tensor Tomography
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916678771671040 |
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| author | Modregger, Peter Ball, James. A. D. Wittwer, Felix Khaliq, Ahmar Wright, Jonathan |
| author_facet | Modregger, Peter Ball, James. A. D. Wittwer, Felix Khaliq, Ahmar Wright, Jonathan |
| contents | The microscopic distribution of strain and stress plays a crucial role for the performance, safety, and lifetime of components in aeronautics, automotive and critical infrastructure [1]. While non-destructive methods for measuring the stress close to the surface have long been long established, only a limited number of approaches for depth-resolved measurements based on x-rays or neutrons are available [2]. These feature significant limitations, including long scan times, intricate experimental set-ups, limited spatial resolution or anisotropic gauge volumes with aspect ratios of 1:10 or worse. Here, we present a method that overcomes these limitations and obtains tomographic reconstructions of the full six-dimensional strain and stress tensor components. Using a simple and wide spread experimental set-up that combines x-ray powder diffraction with single axis tomography, we achieve non-destructive determination of depth-resolved strain and stress distributions with isotropic resolution. The presented method could be of interest for additive manufacturing of metals [3,4], battery research [5], in-situ metallurgy [6] and the experimental validation of finite element simulations [7]. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_05796 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | X-ray Strain and Stress Tensor Tomography Modregger, Peter Ball, James. A. D. Wittwer, Felix Khaliq, Ahmar Wright, Jonathan Materials Science Instrumentation and Detectors The microscopic distribution of strain and stress plays a crucial role for the performance, safety, and lifetime of components in aeronautics, automotive and critical infrastructure [1]. While non-destructive methods for measuring the stress close to the surface have long been long established, only a limited number of approaches for depth-resolved measurements based on x-rays or neutrons are available [2]. These feature significant limitations, including long scan times, intricate experimental set-ups, limited spatial resolution or anisotropic gauge volumes with aspect ratios of 1:10 or worse. Here, we present a method that overcomes these limitations and obtains tomographic reconstructions of the full six-dimensional strain and stress tensor components. Using a simple and wide spread experimental set-up that combines x-ray powder diffraction with single axis tomography, we achieve non-destructive determination of depth-resolved strain and stress distributions with isotropic resolution. The presented method could be of interest for additive manufacturing of metals [3,4], battery research [5], in-situ metallurgy [6] and the experimental validation of finite element simulations [7]. |
| title | X-ray Strain and Stress Tensor Tomography |
| topic | Materials Science Instrumentation and Detectors |
| url | https://arxiv.org/abs/2504.05796 |