Determination of integral fringe order in photoelasticity

Srinath, L. S.; Sarma, A. V. S. S. S. R.

doi:10.1007/bf02323972

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Range Of Measurements1

Introduction1

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1992

2022

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Cited by 14 publications

(2 citation statements)

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“…Because the value of f is dependent on the stress-optic coefficient C, and the wavelength ;<, the range of measurement, eq (11) can also be represented in terms of C1, C2, ;<1 and ;<2 as N1 5 C1),2/2(C2;<1 -CI;<2). (12) By assuming that C1 = C2, the equation above can be simplified as NI < ;<2/2(;<1 -;<2).…”

Section: Range Of Measurementsmentioning

confidence: 99%

Digital determination of photoelastic birefringence using two wavelengths

Chen

1997

Experimental Mechanics

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ABSTRACT--A new approach for digital determination of photoelastic birefringence is proposed. The relationships between the intensity values and the fringe orders of two wavelengths are derived. This scheme allows for automatic determination of fringe orders of a full-field photoelastic fringe pattern without using zero-order fringes in the fringe pattern. The usefulness of this method was demonstrated on two experimental fringe patterns with different wavelengths.

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Section: Range Of Measurementsmentioning

confidence: 99%

Digital determination of photoelastic birefringence using two wavelengths

Chen

1997

Experimental Mechanics

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“…The proportionality coefficient C is called the stress-optic coefficient and its value is material-specific [11]. The simple method for measuring retardation is the fringe method [12,17,[25][26][27]. This method measures the image with fringe pattern using a polarizer and the two quarterwave plates.…”

Section: Introductionmentioning

confidence: 99%