Compressive Creep Strain Measurements Using Moire Interferometry

M. E. Tuttle; R. J. Klein

doi:10.1117/12.7976734

1 August 1988 Compressive Creep Strain Measurements Using Moire Interferometry

M. E. Tuttle, R. J. Klein

Author Affiliations +

Optical Engineering, Vol. 27, Issue 8, 278630 (August 1988). https://doi.org/10.1117/12.7976734

Abstract

Uniaxial compressive creep loads were applied to quasi-isotropic composite laminates at room temperature. The x and y displacement fields were measured using moire interferometry. Moire fringe patterns were recorded photographically; these photographic records were subsequently digitized and reduced to in-plane strain levels numerically. Strain contours were plotted, providing a whole-field representation of in-plane strain distribution. Slight viscoelastic behavior was observed over the time period considered, except in one test in which time-dependent delamination failures were observed.

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M. E. Tuttle and R. J. Klein "Compressive Creep Strain Measurements Using Moire Interferometry," Optical Engineering 27(8), 278630 (1 August 1988). https://doi.org/10.1117/12.7976734

Published: 1 August 1988

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