Specimen gratings made from body art paper for in-plane moiré strain analysis

Investigating full-field deformation of planar soft tissue under simple-shear tests

“…The advantages and disadvantages of FTM and CFTM are described in detail by Choi et al (1993). In current study, the Fourier transform moire´method was used to measure full-field deformation of porcine skin specimen during finite simple-shear tests as this method is suitable for strain analysis of materials which may undergo large deformation (Guo et al, 2005;Liou, 2004Liou, , 2005 and the experimental setup is simple. In current study, u-and vfield fringe patterns were extracted from the first harmonics in x-and y-directions, respectively, from the Fourier spectrum (Fig.…”

“…These geometries allowed the effect of different aspect ratios on the strain field distribution during simple-shear tests to be investigated. Finally, low Young's modulus specimen cross grating (Liou, 2005) was put on soft-tissue specimens after the specimen was cut.…”