Results 91 to 100 of about 23,281 (293)

Biomechanical Study of the Pullout Resistance in Screws of a Vertebral Fixation System

open access: yesAdvances in Mechanical Engineering, 2011
The purpose of this study was to investigate the effect of varying the outer diameter of screws of a vertebral fixation system by submitting them to mechanical tests and photoelasticity.
Sarah F. Fakhouri   +5 more
doaj   +1 more source

Characterization of a defective PbWO4 crystal cut along the a-c crystallographic plane: structural assessment and a novel photoelastic stress analysis

open access: yes, 2017
Among scintillators, the PWO is one of the most widely used, for instance in CMS calorimeter at CERN and PANDA project. Crystallographic structure and chemical composition as well as residual stress condition, are indicators of homogeneity and good ...
Davì, F.   +5 more
core   +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

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 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 and finite element stress analysis reliability for implant-supported system stress investigation

open access: yesBrazilian Journal of Oral Sciences, 2018
Aim: To compare the reliability between photoelastic and finite element (FE) analyses by evaluating the effect of different marginal misfit levels on the stresses generated on two different implant-supported systems using conventional and short implants.
Anna Gabriella Camacho Presotto   +5 more
doaj   +1 more source

The investigation of fibre reinforcement effects in thermoplastic materials: interfacial bond strength and fibre end parameter [PDF]

open access: yes, 2008
Glass fibres used in the manufacture of fibre reinforced thermoplastic composites (FRTP) are normally sized with a film former which includes a silane coupling agent to improve the interfacial bond strength between glass fibre and matrix .
Jones, F.R., Thomason, James, Wang, C.C.
core  

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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