Surface And Interior Crack-Tip Field Measurement By An Embedded Random Speckle Method

F. P. Chiang; Hua Lu

doi:10.1117/12.7977914

1 March 1988 Surface And Interior Crack-Tip Field Measurement By An Embedded Random Speckle Method

F. P. Chiang, Hua Lu

Author Affiliations +

Optical Engineering, Vol. 27, Issue 3, 273210 (March 1988). https://doi.org/10.1117/12.7977914

Abstract

An embedded random speckle technique is used to measure the displacement in the near-crack-tip fields in four-point-bending beams made of transparent materials. Stress intensity factors or strains in the different planes are generated from the displacement measurements. The results are compared with the existing theoretical and numerical solutions.

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F. P. Chiang and Hua Lu "Surface And Interior Crack-Tip Field Measurement By An Embedded Random Speckle Method," Optical Engineering 27(3), 273210 (1 March 1988). https://doi.org/10.1117/12.7977914

Published: 1 March 1988

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