dorsal/arxiv
View SchemaApplication of Sharafutdinov's Ray Transform in Integrated Photoelasticity
| Authors | H. Hammer, B. Lionheart |
|---|---|
| Categories | |
| ArXiv ID | physics/0309090 |
| URL | https://arxiv.org/abs/physics/0309090 |
| DOI | 10.1007/s10659-004-7191-1 |
| Journal | Journal of Elasticity, Volume 75, No. 3, June 2004, pp. 229-246 |
Abstract
We explain the main concepts centered around Sharafutdinov's ray transform, its kernel, and the extent to which it can be inverted. It is shown how the ray transform emerges naturally in any attempt to reconstruct optical and stress tensors within a photoelastic medium from measurements on the state of polarization of light beams passing through the strained medium. The problem of reconstruction of stress tensors is crucially related to the fact that the ray transform has a nontrivial kernel; the latter is described by a theorem for which we provide a new proof which is simpler and shorter as in Sharafutdinov's original work, as we limit our scope to tensors which are relevant to Photoelasticity. We explain how the kernel of the ray transform is related to the decomposition of tensor fields into longitudinal and transverse components. The merits of the ray transform as a tool for tensor reconstruction are studied by walking through an explicit example of reconstructing the $\sigma_{33}$-component of the stress tensor in a cylindrical photoelastic specimen. In order to make the paper self-contained we provide a derivation of the basic equations of Integrated Photoelasticity which describe how the presence of stress within a photoelastic medium influences the passage of polarized light through the material.
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"abstract": "We explain the main concepts centered around Sharafutdinov\u0027s ray transform,\nits kernel, and the extent to which it can be inverted. It is shown how the ray\ntransform emerges naturally in any attempt to reconstruct optical and stress\ntensors within a photoelastic medium from measurements on the state of\npolarization of light beams passing through the strained medium. The problem of\nreconstruction of stress tensors is crucially related to the fact that the ray\ntransform has a nontrivial kernel; the latter is described by a theorem for\nwhich we provide a new proof which is simpler and shorter as in Sharafutdinov\u0027s\noriginal work, as we limit our scope to tensors which are relevant to\nPhotoelasticity. We explain how the kernel of the ray transform is related to\nthe decomposition of tensor fields into longitudinal and transverse components.\nThe merits of the ray transform as a tool for tensor reconstruction are studied\nby walking through an explicit example of reconstructing the\n$\\sigma_{33}$-component of the stress tensor in a cylindrical photoelastic\nspecimen. In order to make the paper self-contained we provide a derivation of\nthe basic equations of Integrated Photoelasticity which describe how the\npresence of stress within a photoelastic medium influences the passage of\npolarized light through the material.",
"arxiv_id": "physics/0309090",
"authors": [
"H. Hammer",
"B. Lionheart"
],
"categories": [
"physics.optics"
],
"doi": "10.1007/s10659-004-7191-1",
"journal_ref": "Journal of Elasticity, Volume 75, No. 3, June 2004, pp. 229-246",
"title": "Application of Sharafutdinov\u0027s Ray Transform in Integrated Photoelasticity",
"url": "https://arxiv.org/abs/physics/0309090"
},
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