Results 91 to 100 of about 6,000 (220)

Análise fotoelástica de parafuso de sistema de fixação vertebral The photoelastic analisys of vertebral fixation system screws

open access: yesActa Ortopédica Brasileira, 2009
INTRODUÇÃO: A fotoelasticidade é utilizada para avaliar as tensões/deformações produzidas nos materiais fotoelásticos, quando submetidos a determinado carregamento, através da observação de efeitos óticos.
Sarah Fakher Fakhouri   +4 more
doaj   +1 more source

Stress intensity factors for deep cracks emanating from the corner formed by a hole intersecting a plate surface [PDF]

open access: yes
A technique consisting of freezing photo-elasticity and a numerical method was used to obtain stress intensity factors for natural cracks emanating from the corner at which a hole intersects a plate surface.
Mcgowan, J. J., Smith, C. W.
core   +4 more sources

Application of Photoelasticy for Study of Lamellar Cracks. [PDF]

open access: yes, 2013
In rolled sheets, non–metallic inclusions are distributed along the thickness of the sheet as narrow lines running parallel to the rolling direction. Such inclusions are the nuclei of lamellar cracks.
Jaroniek, Mieczysław   +1 more
core  

Full-field pulsed-magneto-photoelasticity - a description of the instrument

open access: yes, 2006
This paper describes a novel instrument used for the analysis of full-field through-thickness stress distributions using the theory of magneto-photoelasticity (MPE) developed by Aben and Clarke et al. [ , , ].
Gibson, S.   +2 more
core   +1 more source

Principal stress and strain trajectories in non-linear elastostatics [PDF]

open access: yes, 1984
The Maxwell-Lame equations governing the principal components of Cauchy stress for plane deformations are well known in the context of photo-elasticity, and they form a pair of coupled first-order hyperbolic partial differential equations when the ...
Ogden, R W
core  

Stress Analysis in Glass Artwork

open access: yesInternational Journal of Optics, 2011
A simple method for determining the stress fields in transparent glass artwork pieces is presented. The proposed method is based on the principles of photoelasticity combining imaging and quantitative measures with an image processing algorithm. The main
João M. P. Coelho   +2 more
doaj   +1 more source

Photoelastic coupling in gallium arsenide optomechanical disk resonators

open access: yes, 2014
We analyze the magnitude of the radiation pressure and electrostrictive stresses exerted by light confined inside GaAs semiconductor WGM optomechanical disk resonators, through analytical and numerical means, and find the electrostrictive force to be of ...
Andronico, Alessio   +6 more
core   +1 more source

Whole-field measurement of three-dimensional stress by scattered-light photoelasticity with unpolarized light

open access: yesEPJ Web of Conferences, 2010
In digital scattered-light photoelasticity with unpolarized light (DSLPUL), secondary principal stress direction ψj and total relative phase retardation ρjtot in a three-dimensional stressed model with rotation of the principal stress axes are ...
Kihara T.
doaj   +1 more source

Microwave Photoelasticity: A Resonant Wavelength Approach Applied to PEEK Polymer [PDF]

open access: yes
Every nondestructive testing (NDT) technique has its unique set of advantages and limitations. Currently, the only existing noncontact NDT method capable of measuring sub-surface stresses, in optically opaque materials, at near-real-time speeds and over ...
Schemmel, Peter J., Waldstein, Seth W.
core   +1 more source

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