Results 31 to 40 of about 23,281 (293)

Photoelastic stress analysis under unconventional loading [PDF]

, 2007
This paper presents use of conventional photoelastic techniques under unconventional loading situations to evaluate their efficacy in sensing applications.
Dubey, Venketesh N., Grewal, Gurtej Singh   +1 more
core   +1 more source

Distorsion of Isochromatic Fringes in the Process of Stress Measurement in Structural Part by Photoelasticimetry

Journal of Mechanical Engineering, 2018
In the article we show the possibility of distorting the results of the experiment by photoelasticity path, in case the isochromatic fringe patterns are recorded by the camera.
Frankovský Peter, Ostertag Oskar, Delyová Ingrid   +2 more
doaj   +1 more source

Determination of the characteristic directions of lossless linear optical elements

, 2006
We show that the problem of finding the primary and secondary characteristic directions of a linear lossless optical element can be reformulated in terms of an eigenvalue problem related to the unimodular factor of the transfer matrix of the optical ...
Aben H, Aben H, Asundi A, Born M, Bukhgeim AL, Coker EG, Cook RD, Dankert H, Denisov AM, Ditchburn RW, Engl HW, Fowles GR, Frocht MM, Frocht MM, Fuki AA, Guenther RD, Hammer H, Hanno Hammer *, Hecht E, Helgason S, Holand I, Kirsch A, Longhurst RS, Maxwell JC, Natterer P, Poincaré H, Sommerfeld A, Theocaris PS   +27 more
core   +1 more source

Calibration and evaluation of optical systems for full-field strain measurement [PDF]

, 2007
The design and testing of a reference material for the calibration of optical systems for strain measurement is described, together with the design and testing of a standardized test material that allows the evaluation and assessment of fitness for ...
Cross, Eann A. Patterson, Erwin Hack, Frocht, Hills, Maurice P. Whelan, Mendels, Olden, Patterson, Philippe Brailly, Qasim Saleem, Rachel A. Tomlinson, Richard L. Burguete, Thorsten Siebert   +13 more
core   +1 more source

Holographic method for stress distribution analysis in photoelastic materials

AIMS Materials Science
An alternative method to obtain the internal stress distribution in photoelastic materials using digital holography (DH) is presented. Two orthogonally polarized holograms were used to obtain the phase maps and analyzed using the proposed approach.
Sidney L. da Silva , Felipe M. Prado , Isis V. Brito , Diogo Soga, Lígia F. Gomes, Niklaus U. Wetter, Mikiya Muramatsu   +6 more
doaj   +1 more source

New Trends in Dental Biomechanics with Photonics Technologies

Applied Sciences, 2015
Engineering techniques used to evaluate strain-stress fields, materials’ mechanical properties, and load transfer mechanisms, among others, are useful tools in the study of biomechanical applications.
Lídia Carvalho, Paulo Roriz, José Simões, Orlando Frazão   +3 more
doaj   +1 more source

Photoelasticity based dynamic tactile sensor [PDF]

, 2005
The paper presents design, construction and testing of a photoelasticity based dynamic sensor which is capable of detecting slip as well as providing normal force information.
Crowder, Richard M., Dubey, Venketesh N.
core   +1 more source

High Load-Induced Birefringence of PMMA Investigated in VIS/NIR Spectral Range

Advances in Electrical and Electronic Engineering, 2019
In the paper, we present the results of an investigation of polymethylmetacrylate’s birefringence induced due to applying high-load. The stress-induced birefringence of the polymethylmetacrylate samples was experimentally investigated by an apparatus ...
Norbert Tarjanyi, Milan Uhricik, Daniel Kacik, Peter Palcek   +3 more
doaj   +1 more source

Calibration testing of discs using photoelasticity method

MATEC Web of Conferences, 2018
Using of the photoelasticity method for determining the stresses under the action of specified forced deformations and, in particular, temperature deformations, which do not satisfy the compatibility conditions, is relevant in the study of composite ...
Frishter Ludmila
doaj   +1 more source

Research Progress of Stress Measurement Technologies for Optical Elements

International Journal of Optics, 2021
It is of great significance to measure the residual stress distribution accurately for optical elements and evaluate its influence on the performance of optical instruments in optical imaging, aviation remote sensing, semiconductor manufacturing, and ...
Shan Wei, Yajun Pang, Zhenxu Bai, Yulei Wang, Zhiwei Lu   +4 more
doaj   +1 more source