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Moiré interferometry for shear strain measurement
Author(s) -
Asundi A.
Publication year - 1990
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1990.tb00719.x
Subject(s) - moiré pattern , shear (geology) , interferometry , materials science , plane stress , shear stress , displacement (psychology) , adhesive , strain (injury) , structural engineering , optics , composite material , engineering , physics , finite element method , psychology , layer (electronics) , psychotherapist , medicine
Moiré interferometry maps the in plane displacement components with very high sensitivity. However, in most applications only normal strain components are derived from these contour maps. With the advent of composite materials and adhesive bonded joints measurement of shear strain is becoming increasingly important. This paper looks at measurement errors likely to occur in shear strain derivation.