energy-preserving integrators for multi-frequency oscillatory Hamiltonian systems -- An extended discrete gradient

for the Elastic Energy of an Inextensible Ribbon -- “Wunderlich, Meet Kirchhoff”: A General and

orthotropic yield criterion in the referential configuration -- General implicit definition of the orthotropic

. One-dimensional models -- 7.3.2. Continuum formulation -- 7.3.3. Energy dissipation in viscoelastic materials -- 7