Finite Element Simulation of Isoclinic and Isochromatic Phasemaps for Use in Digital Photoelasticity

Ashokan, K.; Ramesh, K.

doi:10.1111/j.1747-1567.2008.00368.x

Cited by 12 publications

(17 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Figure 9 shows an example of this procedure by 6 images. analysis of the error, only the zones within the photos that were unambiguous and contained no inconsistencies were considered [19]. Figure 10 show the results obtained with the application of the new phase calculation equations developed for a values of N and Step.…”

Section: Testing and Analysis Of Errormentioning

confidence: 99%

“…To compare the new equations for calculating the phase, nine sets of photos with Step set to 3,4,6,7,10,11,16,19, and 31 were generated. In each set, the angle  of the analyzer is varied (): 45, 30, 18, 15, 10, 9, 6, 5, and 3, respectively.…”

Section: Testing and Analysis Of Errormentioning

confidence: 99%

“…(19) provides values of the real coefficients (b r,s , c r,s , e r,s , f r,s ), which represents an unprecedented and new phase equation for  and .…”

mentioning

confidence: 99%

See 2 more Smart Citations

Numerical Methods for the Photoelastic Technique using Phase Shifting

et al. 2015

View full text Add to dashboard Cite

The objective of this research is to find new equations for a novel phase-shifting method in digital photoelasticity. Some innovations are proposed. In terms of phase-shifting, only the analyzer is rotated, and the other equations are deduced by applying a new numerical technique instead of the usual algebraic techniques. This approach can be used to calculate a larger sequence of images. Each image represents a pattern and a measurement of the stresses present in the object. A reduction in the difference between the theoretical and experimental values of stresses was obtained by increasing the number of images in the equations for calculating phase. Every photographic image has errors and random noise, but the uncertainties due to these effects can be reduced with a larger number of observations.

show abstract

Section: Testing and Analysis Of Errormentioning

confidence: 99%

Section: Testing and Analysis Of Errormentioning

confidence: 99%

See 1 more Smart Citation

Numerical Methods for the Photoelastic Technique using Phase Shifting

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The values of  i and  i are calculated by the new equation. In the analysis of the error, only the zones within the photos that were unambiguous and contained no inconsistencies were considered [18][19][20]. Fig.…”

Section: Testing and Analysis Of Errormentioning

confidence: 99%

“…3 shows an example of this procedure. To compare the new equations for calculating the phase, nine sets of photos with Step set to 3,4,6,7,10,11,16,19, and 31 were generated. In each set, the angle  of the analyzer is varied (): 45º, 30º, 18º, 15º, 10º, 9º, 6º, 5º, and 3º, respectively.…”

Section: Testing and Analysis Of Errormentioning

confidence: 99%

Separation of Isochromatics and Isoclinics Phasemaps for the Photoelastic Technique with use Phase Shifting and a Large Number of High Precision Images

Magalhães¹,

Neto²,

Júnior³

et al. 2013

Metrology and Measurement Systems

View full text Add to dashboard Cite

Digital photoelasticity is an important optical metrology follow-up for stress and strain analysis using full-field digital photographic images. Advances in digital image processing, data acquisition, procedures for pattern recognition and storage capacity enable the use of the computer-aided technique in automation and facilitate improvement of the digital photoelastic technique. The objective of this research is to find new equations for a novel phase-shifting method in digital photoelasticity. Some innovations are proposed. In terms of phaseshifting, only the analyzer is rotated, and the other equations are deduced by applying a new numerical technique instead of the usual algebraic techniques. This approach can be used to calculate a larger sequence of images. Each image represents a pattern and a measurement of the stresses present in the object. A decrease in the mean errors was obtained by increasing the number of observations. A reduction in the difference between the theoretical and experimental values of stresses was obtained by increasing the number of images in the equations for calculating phase. Every photographic image has errors and random noise, but the uncertainties due to these effects can be reduced with a larger number of observations. The proposed method with many images and high accuracy is a good alternative to the photoelastic techniques.

show abstract

Adhesive Network Formation: Continuum Mechanical Modelling and Simulation

Possart

Steinmann

2018

Adhesive Joints

View full text Add to dashboard Cite

Finite Element Simulation of Isoclinic and Isochromatic Phasemaps for Use in Digital Photoelasticity

Cited by 12 publications

References 17 publications

Numerical Methods for the Photoelastic Technique using Phase Shifting

Numerical Methods for the Photoelastic Technique using Phase Shifting

Separation of Isochromatics and Isoclinics Phasemaps for the Photoelastic Technique with use Phase Shifting and a Large Number of High Precision Images

Adhesive Network Formation: Continuum Mechanical Modelling and Simulation

Contact Info

Product

Resources

About