Photoelastic Analysis of Mode I Stress Intensity Factor in Beams with Angular Notches

Tabanyukhova, M. V.; Пангаев, В. В.

doi:10.1007/1-4020-4972-2_221

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…The level of the band is the optical path difference expressed in wavelengths. Method allows you to visually and easily determine the stress distribution patterns in complex-shaped bodies, in particular in zones of stress concentration [8]. However, the study obliged to be carried out not on the real, but on the model material, which reflects the actual properties of the materials only in the elasticity [9].…”

Section: Introductionmentioning

confidence: 99%

Photoelastic Analysis of the Stressed State of a Flat Element with Geometrical Stress Concentrators (Cutout and Cuts)

Tabanyukhova

2019

KEM

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The investigation of the stressed state of flat element with the geometrical stress concentrators was performed. The sample was made of piezo optic material. The oval-shape cutout and linear cuts were issued as the stress concentrators. On the symmetrical axles was cut out an oval. Linear cuts were made one by one under the different angles. Each time after appearing of the new cut, we fixed the stress fields in the model. Issue was performed using the axial compression at the elastic linear stage of loading. We used the method of photoelasticity. We estimated the quality and quantity of the influence of the size and the angle of cuts on the element stressed state, and received the stress fields during the different loadings. Also we estimated the stress coefficients near the tops of the cuts.

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Section: Introductionmentioning

confidence: 99%

Photoelastic Analysis of the Stressed State of a Flat Element with Geometrical Stress Concentrators (Cutout and Cuts)

Tabanyukhova

2019

KEM

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Influence of Curvature of the Crack Tip Radius on Stresses

Gerber

Nagel

Tabanyukhova

2022

Vestnik of Samara University. Natural Science Series

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In experimental mechanics, when conducting research on models, the question often arises of whether it is legitimate to replace a crack with a cut, whether the radius of curvature of the cut will have a large effect on the magnitude of stresses near its apex. In order to understand these questions and give answers to them, a number of experiments were carried out on samples made of piezo-optical material (Plexiglass of E2 grade). In the models, the crack was simulated using a cut, then a hole was made at the top of the cut with a drill. The models were investigated in pure bending by the photoelasticity method. Stress fields were obtained in two batches of samples at different loads. The intensity of stresses near cracks-cuts at different radius of curvature of their tops was determined by using the experimental data. An assessment ofthe influence of the crack-cut tip radius curvature on the magnitude of stresses near it has been carried out.

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Photoelastic Analysis of Mode I Stress Intensity Factor in Beams with Angular Notches

Cited by 2 publications

References 3 publications

Photoelastic Analysis of the Stressed State of a Flat Element with Geometrical Stress Concentrators (Cutout and Cuts)

Photoelastic Analysis of the Stressed State of a Flat Element with Geometrical Stress Concentrators (Cutout and Cuts)

Influence of Curvature of the Crack Tip Radius on Stresses

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