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Hyperstatic Method of Photoelasticity

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The publisher regrets that the following equation published in the article, “TECHNICAL NOTE: Hyperstatic Method of Photoelasticity,” by D. Rajamohan in Experimental Mechanics 48:5, pp. 693-696 has an error. Equation (9) should appear as

$$\overline \varepsilon ^2 = \frac{4}{3}\left( {\varepsilon _1^2 - \varepsilon _1 \cdot \varepsilon _2 + \varepsilon _2^2 } \right)$$

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Correspondence to D. Rajamohan.

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Rajamohan, D. Hyperstatic Method of Photoelasticity. Exp Mech 49, 437 (2009).

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