Figure 16.

(a) Pre-stressed surface modeled as pipe elements inducing (b) the tension–compression asymmetry in the ligaments. (c) The micromechanical model for the integration of surface energy in a randomized diamond structure with elastic–plastic cylindrical ligaments. (d) The orientation of ligaments explains the origin of the mechanism that leads to the jumps in the plastic Poisson’s ratio. The model reproduces (e) switchable flow stress, and (f) jumps in plastic Poisson’s ratio. Reprinted from [135] in accordance with ACS Author Choice License.