Advancement of Optical Methods in Experimental Mechanics, by Helena Jin, Cesar Sciammarella, Sanichiro Yoshida, Luciano

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By Helena Jin, Cesar Sciammarella, Sanichiro Yoshida, Luciano Lamberti

Advancement of Optical equipment in Experimental Mechanics, quantity three: court cases of the 2014 Annual convention on Experimental and utilized Mechanics, the 3rd quantity of 8 from the convention, brings jointly contributions to this crucial sector of study and engineering. the gathering provides early findings and case stories on quite a lot of optical tools starting from conventional photoelasticity and interferometry to newer DIC and DVC options, and contains papers within the following normal technical learn areas:

· complex optical tools for frontier applications

· complex optical interferometry

· Optical dimension platforms utilizing polarized light

· Optical tools for complicated production

· electronic photograph correlation

· Optical equipment on the micro/nano-scale

· third-dimensional imaging and volumetric correlation

· Imaging tools for thermomechanics applications

· Opto-acoustical equipment in experimental mechanics

· Optical measurements in tough environments

· Optical equipment for inverse problems

· Advances in optical methods

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Extra info for Advancement of Optical Methods in Experimental Mechanics, Volume 3: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics

Sample text

It is interesting to point out that, while the white light illumination that is normal to the plane of the grating shows peaks and valleys but does not separate them, the evanescent illumination shows higher intensities in the region of contact with the grating. The evanescent field dies out in depth within a fraction of the wavelength of light. e. 81 mm is obtained. 42 mm. The corresponding depth of penetration of the evanescent field can be computed by following equation from [39]: z¼ l qffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi 2 2p sinn12 2ui À 1 ð3:16Þ where z is the depth of penetration of the evanescent field, and n12 is the relative index of refraction of the two media in contact, glass and air.

Springer, New York, pp 187–197 42. Quinn GD (2012) Fractography of glasses and ceramics VI: ceramic transactions, vol 230. Wiley-American Ceramic Society, USA 43. General Stress Optics Inc. 0. General Stress Optics Inc, Chicago, IL. http://www. com Chapter 4 Strain Assessment in Cracked Sheet Metals by Optical Grid Method M. Sasso, G. Chiappini, M. Rossi, and D. Amodio Abstract The present work is an extension of the optical grid method for the experimental investigation of deformation in stamped sheet metals.

Lamberti Abstract The authors utilize optical evanescent fields to analyze the topography of metallic and non metallic surfaces. The methodology initiated with the phenomenon of planar surface waves produced by surface plasmon polaritons. By direct experimental observations in 2009 the method was extended to ceramic surfaces in the micron and sub-micron range. Since the ceramics are dielectric materials the plasmon polariton model cannot explain the observed phenomena. For almost a century researchers have analyzed surface electromagnetic waves observed in planar interfaces that involve metallic surfaces, or metallic surfaces and dielectric media.

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