The aim of this paper is the presentation of notes concerning the two-scalar damage effect tensors by Chow as well as the formulation of conditions of thermodynamic admissibility of such tensors and the verification of known-in-literature damage effect tensors from the point of view of the derived conditions.
This article deals with the modeling of the low cycle fatigue of AISI 316L stainless steel from the viewpoint of continuum damage mechanics. The concept of kinetic law of damage evolution is adapted and three models are presented: one in which the effect of crack closure/opening is excluded and two others where either classical or new continuous microcrack closure/opening effects are taken into account. The problem is described by a system of ordinary differential equations derived for the case of uniaxial stress, then extended to the threedimensional (3D) state of stress accompanying strain localization by the use of approximate, axisymmetric 3D stress formulas by Davidenkov and Spridonova. The results of numerical simulation for all models are compared and verified in order to achieve the best agreement with the experimental data. Detailed quantitative and qualitative analysis of obtained solutions confirms the necessity and correctness of an application of continuous microcrack closure/opening effect.KEY WORDS: damage, continuous microcrack closure/opening effect, low cycle fatigue.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.