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

Photography

Composites

Fringe analysis

Moire patterns

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