On the applicability of multi-surface, two-surface and non-linear kinematic hardening models in multiaxial fatigue
Journal Title: Frattura ed Integrità Strutturale - Year 2015, Vol 9, Issue 33
Abstract
In this work, a comparison between NLK and Mróz-Garud’s multi-surface formulations is presented. A unified common notation is introduced to describe the involved equations, showing that the Mróz-Garud model can be regarded as a particular case of the NLK formulation. It is also shown that the classic two-surface model, which is an unconventional simplified plasticity model based on the translation of only two surfaces, can also be represented using this formulation. Such common notation allows a direct quantitative comparison among multi-surface, two-surface, and NLK hardening models.
Authors and Affiliations
M. Maggiolaro, J. Castro, H. Wu
Sulla storia degli studi di frattura in Italia
La storia degli studi sulla frattura è inestricabilmente connessa con il progresso della tecnologia. All'inizio pochissimo fu scritto. Dobbiamo riconoscere a Leonardo e Galileo il merito di essere stati fra i primi a scr...
Crack front segmentation under combined mode I- and mode III- loading
This article approaches the topic of crack initiation and crack growth behaviour under combined mode I- and mode III-loading conditions. Such loading combinations especially lead to a crack, which unscrew out...
Fretting fatigue crack propagation rate under variable loading conditions
Fretting fatigue experiments aim to represent industrial problems and most of them endure variable loading. Being able to assess lifetime of assemblies, especially for low propagation rate conditions, is essential...
Near tip strain evolution of a growing fatigue crack
Near tip full-field strains in a growing fatigue crack have been studied in situ using the Digital Image Correlation (DIC) technique in a compact tension specimen of stainless steel 316L under tension-tension cycl...
Investigation of mixed mode - I/II fracture problems - Part 1: computational and experimental analyses
In this study, to investigate and understand the nature of fracture behavior properly under in-plane mixed mode (Mode-I/II) loading, three-dimensional fracture analyses and experiments of compact tension shea...