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nlin.PS2024
Solitary waves and kinks in FPU lattices with soft-hard-soft trilinear interactions
Anna Vainchtein, Lev Truskinovsky
We consider a version of the classical Hamiltonian Fermi-Pasta-Ulam (FPU) problem with a trilinear force-strain relation of soft-hard-soft type that is in general non-symmetric. In…
nlin.PS2024
When discrete fronts and pulses form a single family: FPU chain with hardening-softening springs
Anna Vainchtein, Lev Truskinovsky
We consider a version of the classical Hamiltonian FPU (Fermi-Pasta-Ulam) problem with nonlinear force-strain relation in which a hardening response is taken over by a softening re…
nlin.PS2024★ 3 cited
Quantized plastic deformation
N. Perchikov, L. Truskinovsky
In engineering crystal plasticity inelastic mechanisms correspond to tensorial zero-energy valleys in the space of macroscopic strains. The flat nature of such valleys is in contra…