This paper is concerned with the determination of displacement and strain fields within the interfacial region of a bimaterial specimen under shear loading. The analysis is based on the couple stress theory. The measurements are made by means of phase shift moiré interferometry which has been recognized as a useful measuring method by combining moiré interferometry with the phase shift technique and image processing. The results obtained by phase shift moiré interferometry show that the distribution of the shear strain, rotation angle and rotation gradient at the interface region are changing rapidly. The results show good agreement with those predicted by stress couple theory.
PostD.HanB.IfjuP.High Sensitivity Moiré Experimental Analysis for Mechanics and Materials, 1994 (Springer-Verlag).
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KangY.JiaY.JiajiD.Determination of the thermal stress of bimaterial specimen using moiré interferometry thermal replicate techniqueJ. Tianjin Univ. (Chin.), 1993, 3, 23–28.
