photoelasticityn.
/ˌfəʊtəʊˌiːlaˈstɪsᵻti/, /ˌfəʊtəʊˌɛlaˈstɪsᵻti/, U.S. /ˈˌfoʊdəəˌlæˈstɪsᵻdi/, /ˈˌfoʊdəiˌlæˈstɪsᵻdi/ Science and Engineering.
Originally: the property of being photoelastic. Now usually: the photoelastic method of stress analysis.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > diffraction > [noun] > photoelastic property or method
photoelasticity1894
the world > matter > physics > mechanics > force > stress or force exerted and tending to deform > [noun] > stress analysis > specific
photoelasticity1894
1894 F. Cajori Hist. Math. 390 The field of photo-elasticity was entered upon by G. Lamé, F. E. Neumann, and Clerk Maxwell.
1911 E. G. Coker in Engineering 6 Jan. 1/1 (heading) Photo-elasticity.
1950 Dolan & Murray in M. Hetényi Handbk. Exper. Stress Anal. xvii. 829 His [sc. E. G. Coker's] introduction of celluloid for models and the use of monochromatic light have led to the modern laboratory methods which make photoelasticity a powerful engineering tool.
1991 Univ. Maryland Graduate School Catal. 1991–3 86/2 Laboratory facilities are available for research in stress analysis, fracture, acoustics, photoelasticity and holography.
2004 Fatigue & Fracture Engin. Material & Struct. 27 623 The methods of caustics and strain gauges were less good, whilst photoelasticity gave consistent results over a wide range of stress levels.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1894