photoelasticadj.
/ˌfəʊtəʊᵻˈlastɪk/, U.S. /ˈˌfoʊdoʊəˈlæstɪk/, /ˈˌfoʊdoʊiˈlæstɪk/ Science and Engineering.
Employing or exhibiting the property of becoming birefringent when mechanically stressed, so that stress patterns in such a substance can be determined from the interference fringes formed by polarized light passed through it.
ΘΚΠ
the world > matter > physics > mechanics > force > stress or force exerted and tending to deform > [adjective] > specific systems of stress analysis
photoelastic1911
isochromatic1931
the world > matter > physics > electromagnetic radiation > light > diffraction > [adjective] > connected with interference
isochromatic1829
interferential1880
photoelastic1911
speckle-interferometric1973
1911 E. G. Coker in Trans. Inst. Naval Architects 53 265 (heading) The determination, by photo-elastic methods, of the distribution of stress in plates of variable section, with some applications to ships' plating.
1920 Flight 12 399/1 On arrival..they were welcomed by the Superintendent, and later attended the lecture of Professor Coker on his photo-elastic method of measuring stresses in materials.
1953 S. Fairman & C. S. Cutshall Mech. of Materials xiii. 372 A third method of experimental stress analysis involves the transmission of polarized light through transparent models and is known as the photoelastic method.
1970 New Scientist 3 Dec. 377/2 The photoelastic plastic generally indicated higher stresses than did the strain gauges.
1985 D. Norman Illustr. Encycl. Dinosaurs 151/3 He was able to do this by using a photoelastic analysis of thin sections of the skull.
2001 Appl. Optics 40 3220 An on-line monitoring method based on photoelasticity techniques for the fabrication of micro-optical components by means of controlled laser heating.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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adj.1911