We propose a new approach for data-driven automated discovery of isotropic hyperelastic constitutive laws. The is unsupervised, i.e., it requires no stress data but only displacement and global force data, which are realistically available through mechanical testing digital image correlation techniques; delivers interpretable models, models that embodied by parsimonious mathematical expressions...

Abstract In this paper, modelling of the superposition stress-induced and inherent anisotropy soil small strain stiffness is presented in framework hyperelasticity. A simple hyperelastic model, capable reproducing variable stiffness, extended by replacement stress invariant with mixed stress–microstructure to introduce constant cross-anisotropic component. convenient feature new model low numbe...

This article presents a very detailed study on the mechanical characterization of highly nonlinear material, immature equine zona pellucida (ZP) membrane. The ZP is modeled as visco-hyperelastic soft matter. Arruda–Boyce constitutive equation and two-term Prony series are identified most suitable models for describing hyperelastic viscous components, respectively, ZP’s response. Material proper...