Measurement of radial deformations in thin-walled cylinders

Anisotropic and hyperelastic identification of in vitro human arteries from full-field optical measurements

“…The combination of 3-D deformation measurements (Rastogi, 1999;Foster, 1978;Viotti et al, 2008;Matthys et al, 1991;Genovese, 2007Genovese, , 2009Sutton et al, 2007) and inverse approaches is now very common in solid mechanics but it is still under-employed for identifying the anisotropic hyperelastic properties of the arterial tissues (Seshaiyer and Humphrey, 2003;Einstein et al, 2005). Moreover, the virtual fields method (Gré diac et al, 2006), which is an inverse method specifically dedicated to full-field data, has never been used for the mechanical identification of arterial tissues although it has very relevant assets: insensitivity to the uncertainty of boundary conditions (Gré diac et al, 2006), robustness (Avril et al, 2004), fast convergence (Avril and Pierron, 2007).…”

Experimental and Numerical Investigations on the Stability of Cylindrical Shells

“…With the presented non-linear numerical model the aim is to find the circumstances of buckling to comply the European Packaging Standard. Paper [14] attempts to find the deflection of cylinders experimentally by means of the Ligtenberg moiré technique. In [15] the structural optimization of two-piece can bottoms is tackled.…”

A video-optical system for time-resolved whole-body measurement on vascular segments

“…Both concave and convex conical mirrors, and endoscopic probes have been used in combination with standard optical techniques such as Ligtenberg moiré [25], white light interferometry [26], and digital image correlation [27] for investigating both inner and outer surfaces of axisymmetrical parts. The present work introduces a very straightforward radial metrology-based approach that exploits geometrical optics, and computer vision concepts.…”