Holographic in-plane displacement measurement in cracked specimens in plane stress state

Ventseslav Christov Sainov; Eli S. Simova

doi:10.1117/12.44725

1 July 1991 Holographic in-plane displacement measurement in cracked specimens in plane stress state

Ventseslav Christov Sainov, Eli S. Simova

Proceedings Volume 1461, Practical Holography V; (1991) https://doi.org/10.1117/12.44725
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

Holographic moire method was applied to in-plane displacement measurement in the near- and far-field in single-edged notch specimens in plane stress state under static uniform tension. The holographic set-up and the loading rig are shown. Image-plane hologram recording and real-time observation were adopted to obtain optimum fringe visibility. To avoid fringe visibility degradation because of the localization problem the carrier fringe technique was used. Improving the holographic recording characteristics and signal-to-noise ratio were done through selection of the light-sensitive recording medium and its chemical processing. Silver- halide holographic plates HP-650 with hardened carrying matrix combined with optimized physical and chemical processing was used. Two-dimensional finite element calculation was performed to be compared with the experimental values. Agreement between experimental and numerical results was analyzed and discussed.

Citation Download Citation

Ventseslav Christov Sainov and Eli S. Simova "Holographic in-plane displacement measurement in cracked specimens in plane stress state", Proc. SPIE 1461, Practical Holography V, (1 July 1991); https://doi.org/10.1117/12.44725

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