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This monograph deals with diverse applications of holographic
interferome try in experimental solid mechanics. Holographic
interferometry has experienced a development of twenty years. It
has enjoyed success and suffered some disappointments mainly due to
early overestimation of its potential. At present, development of
holo graphic interferometry is progressing primarily as a technique
for quantita tive measurements. This is what motivated us to write
this book - to ana lyze the quantitative methods of holographic
interferometry. The fringe patterns obtained in holographic
interferometry are graphi cally descriptive. In the general case,
however, because they contain infor mation on the total vectors of
displacement for points on the surface of a stressed body, the
interpretation of these interferograms is much more complicated
than in typical conventional interferometry. In addition, the high
sensitivity of the method imposes new requirements on the loading
of the objects under study. New approaches to designing loading
fixtures are needed in many cases to ensure the desired loading
conditions. The wealth of information obtained in holographic
interferometry necessitates the use of modern computational
mathematics. Therefore, practical implementation of the various
methods of holographic interferometry must overcome sub stantial
difficulties requiring adequate knowledge in diverse areas of
science such as coherent optics, laser technology, mechanics, and
applied mathe matics. Experimental methods play a significant role
in solid mechanics."
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