A study on the behaviors and stresses of O-ring under uniform squeeze rates and internal pressure by transparent type photoelastic experiment

Nam, Jong-Ho; Hawong, Jai-Sug; Shin, Dong-Chul; Mose, Bruno R.

doi:10.1007/s12206-011-0713-4

Cited by 16 publications

(14 citation statements)

References 9 publications

(8 reference statements)

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“…It is interesting to note that to the best knowledge of the authors a synergy of both photoelastic experimental hybrid method and weight functions has not been applied where quantitative values of contact and interior stresses of structures have been determined. For example to determine the contact stresses of an O‐ring, the photoelastic hybrid method was applied without use of weight functions .…”

Section: Resultsmentioning

confidence: 99%

Use of weight functions and photoelastic experimental hybrid method to study the contact problem

Mose

Maranga

Alunda

et al. 2015

Mat.-wiss. u. Werkstofftech

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The contact problem involving flat punches has been the subject of many investigations mainly due to the crucial role it plays in many engineering applications. The contact problem has however, been widely approached from a theoretical point of view and there is a lack of experimental verifications due to the limited number of laboratory techniques capable of supplying detailed information about contact parameters. In order to gain an understanding of such problems, this study uses an experimental approach to investigate the stresses arising from photoelastic models when compressed against each other using Riemann‐Hilbert's weight functions and photoelastic experimental hybrid method. The study shows that this approach is effective in determining the magnitudes of contact stresses as well as interior stresses which up to date have been scarcely investigated. It is further shown that high stresses exist when a photoelastic model with a sharp corner is pressed against straight surface of the bottom half space and by introducing fillet radii at the sharp corners, significant stress reductions of up to 62.66% is observed.

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Section: Resultsmentioning

confidence: 99%

Use of weight functions and photoelastic experimental hybrid method to study the contact problem

Mose

Maranga

Alunda

et al. 2015

Mat.-wiss. u. Werkstofftech

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“…In the photoelastic experimental hybrid method, a MATLAB program has been developed by the authors and applied in various studies [13][14][15][16][17] . For the MATLAB program to process the stress components, experimental data such as the specimen thickness, fringe value and fringe order as well as high temperature material properties including Young's Modulus (E), and Poisson's ratio (v), are used.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…In this paper, new stress freezing cycle for photoelastic models of complex geometries is proposed with the advantage of huge savings on energy requirements compared to previously utilized cycles [13][14][15][16][17] . The proposed cycle is applied in stress freezing of elastomeric epoxy resin seals made from Araldite (B41) and cured with Hardener (HT 903) with different cross-sectional profiles to assess its suitability.…”

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confidence: 99%

Elastomeric seal stress analysis using photoelastic experimental hybrid method

Mose

Shin

Alunda³

et al. 2022

Sci Rep

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Stress freezing is an important and powerful procedure in 3-dimensional experimental stress analysis using photoelasticity. The application of the stress freezing technique to extract stress components from loaded engineering structures has, however, declined over the years even though its principles are well established. This is attributed to huge costs arising from energy consumption during the process. In addition, significant time is needed to generate the desired information from isoclinic and isochromatic fringes. To overcome the limitations of stress freezing in photoelasticity and transform it into an economical device for stress analysis in an engineering environment, a new stress freezing cycle that lasts 5 h is proposed. The proposed technique is used in several applications of elastomeric seals with different cross-sectional profiles to assess their suitability. It was found that reducing the cycle time can lead to huge energy savings without compromising the quality of the fringes. Moreover, the use of isochromatic only to extract stress components leads to a shorter processing time to achieve desirable information since the process of obtaining isoclinic data is involving. In this paper, results of stress analysis from stress-frozen elastomeric seals with various cross-sections using the new stress freezing cycle are presented.

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“…Previous works usually concentrated on the evaluation of various behaviors and numerical simulation analysis of the O-ring gaskets under laboratory conditions [11][12][13][14] .…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Failure analysis of O-ring gaskets of the electric hydraulic system in the nuclear power plant

Yang

Ding

2017

Engineering Failure Analysis

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A study on the behaviors and stresses of O-ring under uniform squeeze rates and internal pressure by transparent type photoelastic experiment

Cited by 16 publications

References 9 publications

Use of weight functions and photoelastic experimental hybrid method to study the contact problem

Use of weight functions and photoelastic experimental hybrid method to study the contact problem

Elastomeric seal stress analysis using photoelastic experimental hybrid method

Failure analysis of O-ring gaskets of the electric hydraulic system in the nuclear power plant

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