Computational aspects of localized deformations in amorphous glassy polymers

Amorphous glassy polymers are prone to strain localization due to the particular constitutive behaviour of these materials where yield is followed immediately by intrinsic strain softening and where increasing strain hardening occurs at continued deformation. With a view on the reliable analysis of localization phenomena, this paper presents a so-called rate tangent formulation of a recently proposed constitutive model for the rate-dependent, …