Measurement of Poisson's ratio through the elastic‐plastic transition

Abstract

Poisson's ratio has been measured in solution annealed stainless steel type 316, under elastic and plastic deformation, using Moire interferometry. The aim of the study was to evaluate the validity of expressions for calculating the shift in the value of Poisson's ratio, from its theoretical elastic value to its plastic value, as a function of strain.

Description of anisotropic material response of wire and arc additively manufactured thin-walled stainless steel elements

“…It can be observed that ν xy,pl varies significantly for all specimen types when θ = 0°and for the machined coupons when θ = 90°; in the remaining cases, the variation in ν xy,pl is low. Previous studies on the variation of the Poisson's ratio in the inelastic range include [65] and [66], which focused primarily on the transition from the elastic to the plastic Poisson's ratio within the yield region of the stress-strain response.…”

Properties and failure of polymes with tailored distances between crosslinks

“…For instance, the Poisson's ratio of an ideally plastic material is also close to 0.5 [94,95]. Proper understanding of crack propagation involves the microscopic level.…”