High sensitivity moiré: experimental analysis for mechanics and materials
This book describes both the theory and practice of physical measurements that use high-sensitivity moire - principally moire interferometry. Its focus is on the mechanics and micromechanics of materials and structural elements. Unlike both classical and holographic interferometry, which are best suited for out-of-plane deformation measurements, moire interferometry provides whole-field maps of the in-plane displacements. Normal strains and shear strains are derived directly from the in-plane data. Moire with 2400 lines per mm is typical in practice, yielding a sensitivity of 2.4 moire fringes per micron of displacement. For micromechanics, sensitivity corresponding to 17 nm per fringe contour is demonstrated. Part II is devoted to applications of moire interferometry and microscopic moire interferometry. New studies, not previously published, are included. Diverse fields are addressed: advanced composite materials, thermal stresses, electronic packaging, fracture, metallurgy, time-dependence, strain gage calibration. The methods can be applied for whole-field measurements on nearly and solid body. This reader-friendly book should serve engineers and scientists who are concerned with measurements of real phenomena - and it should stimulate students to pursue the treasures of experimental analysis.
56 pages matching geometric moire in this book
Results 1-3 of 56
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
adjusted analysis angle applied beam splitter beams calibration carrier fringes coherent collimated composite compressive strain contour map corresponding crack curve deformation determined diffraction grating diffraction orders direction displacement fields epoxy equations Experimental Mechanics factor fibers Figure fringe gradient fringe multiplication fringe order fringe pattern fringe shifting fringe vector gage length geometric moire grating frequency grating lines helium-neon laser illustrated in Fig image plane in-plane incident intensity distribution interface laminate laser lines/in lines/mm load material measurements method mirror Moir6 moire fringes moire interferometry moire pattern mold null field optical fiber optical path lengths out-of-plane perpendicular phase photoresist plate plies polarization produce reflection refractive refractive index region replication represent rotation shear strains shown in Fig silicone rubber solder space specimen grating specimen surface strain gage stresses subtraction technique tensile thickness virtual grating virtual reference grating warped wave fronts wave train wavelength x,y point zero