Fig. 9: Determining crack length with image analysis. | Communications Materials

Fig. 9: Determining crack length with image analysis.

From: High-cycle fatigue damage accumulation in paper

Fig. 9

Optical images and thresholded digital image correlation strain map overlaps showing extent of crack growth. It was difficult to discern the crack tip in the a transmitted light optical images, but the strain maps (b, c) allowed for measurement of the crack length.

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