Get Advancement of Optical Methods in Experimental Mechanics, PDF

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

ISBN-10: 3319415999

ISBN-13: 9783319415994

ISBN-10: 3319416006

ISBN-13: 9783319416007

Advancement of Optical tools in Experimental Mechanics, quantity three: lawsuits 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 offers early findings and case experiences on a variety of optical equipment starting from conventional photoelasticity and interferometry to newer DIC and DVC ideas, and comprises papers within the following basic technical examine areas:

·        complex optical tools for frontier applications

·        complex optical interferometry

·        Optical size platforms utilizing polarized light

·        Optical equipment for complex production

·        electronic photograph correlation

·        Optical tools on the micro/nano-scale

·        3-dimensional imaging and volumetric correlation

·        Imaging tools for thermomechanics applications

·        Opto-acoustical equipment in experimental mechanics

·        Optical measurements in not easy environments

·        Optical equipment for inverse problems

·        Advances in optical methods

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Read Online or Download Advancement of Optical Methods in Experimental Mechanics, Volume 3: Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics  PDF

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Additional info for Advancement of Optical Methods in Experimental Mechanics, Volume 3: Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics 

Example text

In the context of metals, the conserved energy is elastic strain energy and the energy dissipation is irreversible (plastic) deformation. A recent theory of deformation and fracture [5] indicates that plastic deformation of metals can be described as loss modulus. We have a series of studies on fatigue of metal specimens using electronic speckle-pattern interferometry [6, 7]. In these studies, we apply a cyclic load to metal plate specimens of the same material and dimension at various levels, and observe their response to a low level tensile load.

Strain was then calculated using a step size k ¼ 1 to study the highest strains. 4 shows the noisy and filtered phase maps and the corresponding calculated strains without any additional strain data filtering. Any values exceeding the range limits are seen in black or white. The general appearance of the strain map is very grainy. In addition, in the area of the largest strains on the right side of the strain map, phase filtering caused some errors that produced anomalies that appear as wrapped dark spots.

In order to fully understand the comparison of different methods presented in this section, it is necessary to recall some fundamental relationships that arise from considering fringe patterns that encode displacement information as frequency modulated signals. The utilization of the energy representation of a signal in the coordinates-frequency space [23] provides powerful procedures to retrieve derivatives of displacements directly from fringe patterns without resorting to the differentiation of displacements.

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Advancement of Optical Methods in Experimental Mechanics, Volume 3: Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics  by Helena Jin, Cesar Sciammarella, Sanichiro Yoshida, Luciano Lamberti


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