Abstract
A new method for analyzing low-order moiréfringe patterns of displacement fields is presented. This method adapts the techniques of half-fringe photoelasticity to moiré and extracts continuous displacement information in the regions between integral fringes. The effectiveness of the technique is illustrated with three examples: a uniform uniaxial field, a tapered specimen in tension, and a disk in diametral compression.
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Voloshin, A.S., Burger, C.P., Rowlands, R.E. et al. Fractional moiré strain analysis using digital imaging techniques. Experimental Mechanics 26, 254–258 (1986). https://doi.org/10.1007/BF02320050
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DOI: https://doi.org/10.1007/BF02320050