The reflected caustics formed from cross-sections of twisted prismatic bars

 
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Journal part (EN)
Scientific article (EN)
1989 (EN)
The reflected caustics formed from cross-sections of twisted prismatic bars (EN)
Theocaris, PS (EN)
Petrou, L (EN)
If a prismatic bar made of a homogeneous isotropic and elastic material is submitted to torsion, cross sections of the bar are twisted and warped. In this paper the shape and size of the caustics and pseudocaustics formed from reflections of light rays on these cross sections were analytically and experimentally studied. This study is concerned with cross sections of circular, elliptic, triagular, and rectangular shapes of different ratios between their characteristic dimensions. It was proved that the experimentally derived caustics are in good agreement with the theoretical curves. Then this method of reflected caustics is a sensitive device for the detection and the accurate measurement of the torsional loading of such elements of structures. © 1989 Springer-Verlag. (EN)
journalArticle (EN)
Light--Reflection (EN)
Dynamic Loading (EN)
Elastic Material (EN)
Elastic Torsion (EN)
Twisting Moment (EN)
Experimental Study (EN)
Materials--Elasticity (EN)
Reflected Caustics (EN)
Cross Section (EN)
Torsional Loading (EN)
Prismatic Bars (EN)
Bars (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Acta Mechanica (EN)
1989 (EN)
http://hdl.handle.net/123456789/10127
133 (EN)
159 (EN)
00015970 (EN)
10.1007/BF01253577 (EN)
3-4 (EN)
76 (EN)
Springer-Verlag (EN)



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