In this study, we use the mechanism-based strain gradient plasticity theory to evaluate both crack tip dislocation density behaviour and coupled effect of material plastic properties intrinsic length on non-linear amplitude factors. The two planar classical stress–strain states are examined, namely, plane stress, under pure mode I II loading conditions. constitutive relations based Taylor’s mod...

The isoscalar giant resonances for $^{86}\mathrm{Ge}$ are studied by the quasiparticle finite amplitude method based on covariant density functional theory. In addition to well-known monopole-quadrupole coupling that splits monopole resonance in axially deformed nuclei, a monopole-quadrupole-hexadecupole is identified neutron-rich triaxially nucleus $^{86}\mathrm{Ge}$, leading emergence of dist...

Two modes of plastic flow localization commonly occur in the ductile fracture of structural metals undergoing damage and failure by the mechanism involving void nucleation, growth and coalescence. The first mode consists of a macroscopic localization, usually linked to the softening effect of void nucleation and growth, in either a normal band or a shear band where the thickness of the band is ...

Given that the dark matter and dark energy in the universe affect cosmological observables only gravitationally, their phenomenology may be described by a single stress energy tensor. True unification however requires a theory that reproduces the successful phenomenology of ΛCDM and that requirement places specific constraints on the stress structure of the matter. We show that a recently propo...

Abstract Ductile metals undergo a considerable amount of plastic deformation before failure. Void nucleation, growth and coalescence is the mechanism failure in such metals. ? – ? titanium alloys are ductile nature widely used for their unique set properties as specific strength, fracture toughness, corrosion resistance to fatigue failures. Voids these have been reported nucleate on phase bound...