Branch cutting algorithm for unwrapping photoelastic phase map with isotropic point

Zhang, Yao-Ting; Huang, M. J.; Liang, Hua-Rong; Lao, F. Y.

doi:10.1016/j.optlaseng.2011.10.013

Cited by 22 publications

(6 citation statements)

References 30 publications

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“…The photoelastic model can then be sliced and analyzed to obtain the stresses within the part. Furthermore, the thickness of the slice should be sufficiently thin relative to the size of the photoelastic model to ensure that the stresses do not change in either magnitude or direction through the thickness of the slice [3,5,26].…”

Section: Stereolithography and Photoelasticitymentioning

confidence: 99%

“…The analysis of stresses by finite elements, widely used in the initial phase of product design, requires validation of the models, both experimentally and analytically (when possible). Therefore, applying the digital photoelastic technique to components obtained with rapid prototyping is very useful for product engineers since small 3D printers are already accessible in the same way as a common office multifunction printer [22,23,24,25,26]. For this, it is necessary that the resin be transparent and birefringent.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Stresses in a Tapered Roller Bearing Using Three-Dimensional Photoelasticity and Stereolithography

et al. 2019

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Digital photoelasticity is an important segment of optical metrology for stress analysis by digital photographic images. Advances in digital image processing, data acquisition, standard recognition and data storage allow the utilization of computer-aided techniques in the automation and improvement of the digital photoelastic technique. The objective of this study is to develop new techniques using 3D rapid prototyping with transparent resins in digital photoelasticity. Some innovations are proposed (e.g., a tapered roller bearing built with 3D rapid prototyping with transparent resin and the final assembly with the specimens prototyped separately). A metrology study is carried out with the new techniques developed.

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Section: Stereolithography and Photoelasticitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Stresses in a Tapered Roller Bearing Using Three-Dimensional Photoelasticity and Stereolithography

et al. 2019

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“…El caso de estudio que se utilizó corresponde a modelos con la geometría de un disco brasilero (Brazilian disc) sometido a cargas puntuales de compresión diametral; cuyo material birrefringente es Polimetilmetacrilato (PMMA) -comúnmente conocido como acrílico. El criterio de selección del caso de estudio obedeció al extenso uso de esta geometría en los estudios de fotoelasticidad (Ramakrishnan & Ramesh, 2017;Lei, Yun & Kang, 2009;Zhang et al, 2012). La geometría, sus dimensiones y las propiedades del material del modelo son presentadas en la Tabla 1.…”

Section: Materiales Y Métodosunclassified

Validación del uso de fotoelasticidad como herramienta para los cursos de Mecánica de Sólidos

Pérez

Motta

León

et al. 2018

reveia

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La implementación de la fotoelasticidad digital como herramienta para el mejoramiento de los cursos de Mecánica de Sólidos fue llevada a cabo en este trabajo. Con ese fin, se propone una metodología para un curso Mecánica de Sólidos, que integra un análisis experimental de fotoelasticidad con un enfoque analítico, basado en la teoría de la elasticidad, y un enfoque numérico, a través del método de los elementos finitos, para la evaluación de esfuerzos en campo completo. Esta propuesta, además de verificar la correspondencia entre los diferentes enfoques para la evaluación del campo de esfuerzos, resalta las ventajas de la utilización de la fotoelasticidad en un curso de Mecánica de Sólido. Los resultados que aquí se presentan sobre el uso de la fotoelasticidad replantean la manera convencional en la que se suele enseñar la asignatura de Mecánica de Sólidos.

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“…The wieldy use of HD throughout the years has resulted in great advances in both techniques and methods inside the scientific and technological universes, as * Correspondence email address: felipemp369@gmail.com shown by the works of Wang (2018), Narayanamurthy (2017), Da Silva (2017), e Zhang (2012) [8][9][10][11]. Currently, digital holography is a fast and efficient tool that can be very useful for the analysis of mechanical effects on materials [12].…”

Section: Introductionmentioning

confidence: 99%

Computational algorithm from the Huygens-Fresnel’s diffraction integral for two-dimensional holographic reconstruction

Prado

Utiyama

Toffoli

et al. 2022

Rev. Bras. Ensino Fís.

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While most common holographic methods of digital reconstruction are based on the convolution theory, for the ease in the mathematical approach, here we present an algorithm by a discretization of the Huygens-Fresnel integral from a Taylor series expansion to produce a bidimensional Fourier transform. Compared to the digital convolution method, the algorithm presented here is more concise and generates a reduction in processing time, since the Fourier transform appears only once in the discretization. Another advantage is associated with the production of results in the frequency domain, allowing the optical information to be obtained directly.

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Branch cutting algorithm for unwrapping photoelastic phase map with isotropic point

Cited by 22 publications

References 30 publications

Analysis of Stresses in a Tapered Roller Bearing Using Three-Dimensional Photoelasticity and Stereolithography

Analysis of Stresses in a Tapered Roller Bearing Using Three-Dimensional Photoelasticity and Stereolithography

Validación del uso de fotoelasticidad como herramienta para los cursos de Mecánica de Sólidos

Computational algorithm from the Huygens-Fresnel’s diffraction integral for two-dimensional holographic reconstruction

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