LAUSR

We extend the stability analysis of the configurations under finite strain using Effective Field Theory (EFT) methods done in [L. Alberte, M. Baggioli, V. C. Castillo, and O. Pujolas, Phys. Rev. D 100, 065015 (2019)]. At finite strain the medium is anisotropic and so fluctuations in different directions behave differently. We recompute the bounds by including the instabilities that may occur in all possible directions. Qualitatively, the main conclusions of [Phys. Rev. D 100, 065015 (2019)] remain unchanged: Nontrivial bounds and correlations between different nonlinear observables can be obtained using EFT methods. Quantitatively, the bounds become more stringent---especially so for materials with power-law stress strain curves ($\ensuremath{\sigma}\ensuremath{\sim}{ϵ}^{\ensuremath{\nu}}$) characterized with a small exponent $\ensuremath{\nu}$.