Moiré Fringes in Strain Analysis |
Contents
MOIRÉ PATTERNS FORMED BY LINE GRATINGS | 19 |
MOIRÉ PATTERNS FORMED BY CIRCULAR RADIAL | 112 |
APPLICATIONS | 146 |
Copyright | |
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amplitude angle 9 angular displacement anticlastic antinodal applied axes axis beam boundary camera centre circular gratings collimated light components of strain corresponding crossed grating curvature curves cylindrical deformation density derived diffraction gratings disparity distance elastic equal equation evaluation experimental extensometer Figure film flexed plates frequency gauge length ground-glass screen image moiré method indicial equation intensity interference interfringe spacing lens light source line gratings linear lines per inch Lüders magnification measurement Mech moiré fringes formed moiré pattern formed nodal normal optical parallel partial slope contours Perspex photoelastic photographic pitch plane plane stress Poisson's ratio position principal direction principal stresses Proc radial gratings radius ratio reference grating relation rotation rulings shear strain shell shock wave slit slope distribution specimen grating strain analysis strain distribution strain field superposed superposition surface technique Theocaris tion values variation vibrating width yield zero zone gratings дх