Application Of The Superposed Holographic Interferometers To Deformation Measurement Problems

Zhilkin, V. A.; Gerasimov, Sergeiy I.; Zinov'ev, V. B.

doi:10.1117/12.961277

Cited by 2 publications

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“…The method of superimposing holographic plates on the structure under investigation was rst proposed by Neumann and Penn [9] and then used by other authors [10]. This method has a unique feature.…”

Section: Introductionmentioning

confidence: 99%

Measurement of microslips of subsurface fatigue crack faces due to rolling loads

Morbarigazzi

Stupnicki

2004

The Journal of Strain Analysis for Engineering Design

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The development of accurate numerical models of the growth of subsurface fatigue cracks due to rolling load needs reliable experimental data on the actual interactions between the crack faces. The distribution of microslips that occur between the crack faces and the interaction between the crack faces as a function of the magnitude and the position of the load with respect to the crack tip are of particular interest. In this study, the microslips of the faces of a subsurface fatigue crack developed in a railhead made of 900A steel were measured by the grating holographic interferometry (G H I) technique. R econstruction of each double-exposed hologram made it possible to obtain four interferograms at multiple o -axis angles. On the basis of the interferograms, two-dimensional maps of the displacement vector components were determined, making it possible to calculate the distribution over the crack length of the crack face microslips and the crack opening and closing. A speci cally designed experimental stand allowed the application of a stepwise increase in the normal load and consequently stepwise rolling of a constant load along the edge of the specimen.

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Section: Introductionmentioning

confidence: 99%

Measurement of microslips of subsurface fatigue crack faces due to rolling loads

Morbarigazzi

Stupnicki

2004

The Journal of Strain Analysis for Engineering Design

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Study of thin plate bending using the method of holographic moiré

Попов

Zinoviev

Nikolaev

et al. 2021

J. Phys.: Conf. Ser.

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The development of the technique of applying high-frequency metallized working images to products made of any materials led to the emergence of the holographic moiré method. This method is based on recording holograms in counter beams and is traditionally used to study the displacements in the working raster plane. This paper shows that if, when holograms are recorded, the registering medium is placed at a considerable distance from the working screen surface, then the recorded optical information makes it possible to determine the inclination angles of the surface under study. We present the results of a study of bending of a thin, round, rigidly clamped plate. The plate was subjected to hydrostatic bending. A good agreement between the experimental data and the theoretical solution is obtained.

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Application Of The Superposed Holographic Interferometers To Deformation Measurement Problems

Cited by 2 publications

References 0 publications

Measurement of microslips of subsurface fatigue crack faces due to rolling loads

Measurement of microslips of subsurface fatigue crack faces due to rolling loads

Study of thin plate bending using the method of holographic moiré

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