Results 121 to 130 of about 796,368 (357)

A Combined High and Low Cycle Fatigue Model for Life Prediction of Turbine Blades

open access: yesMaterials, 2017
Combined high and low cycle fatigue (CCF) generally induces the failure of aircraft gas turbine attachments. Based on the aero-engine load spectrum, accurate assessment of fatigue damage due to the interaction of high cycle fatigue (HCF) resulting from ...
Shun‐Peng Zhu   +3 more
semanticscholar   +1 more source

MODELLING OF STRESS GRADIENT EFFECT ON FATIGUE LIFE USING WEIBULL BASED DISTRIBUTION FUNCTION [PDF]

open access: yes, 2013
In the present paper, a new approach is developed in order to take into account the stress gradient effect on fatigue life of structural components. The proposed approach is based on the weakest link concept in which the shape coefficient of the Weibull ...
PALIN-LUC, Thierry   +2 more
core  

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column

open access: yes, 2009
This paper presents the results of a low-cycle fatigue test on a lighting column. The wind induced vibration phenomena responsible for low cycle fatigue in such structures is discussed and the failure mechanism is examined.
Taylor, Ian   +2 more
core  

Potential fatigue strength improvement of AA 5083-H111 notched parts by wire brush hammering: Experimental analysis and numerical simulation [PDF]

open access: yes, 2014
The effects of milling as machining process and a post-machining treatment by wire-brush hammering, on the near surface layer characteristics of AA 5083-H111 were investigated.
SIDHOM, Habib   +4 more
core   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Influence of stress concentration and multiaxial stress state on low cycle fatigue

open access: yes, 1998
Torsion tests were performed on thin tubular specimens made of 34CrMo4 steel. The low-cycle curves obtained from torsional tests were compared with the ones obtained from axial tests. Experimental tests were executed on notched specimens made of the same
Vergani, L.   +3 more
core   +2 more sources

MODELIZATION OF LOW CYCLE FATIGUE DAMAGE IN FRAMES

open access: yes, 2000
Damage models based on the Continuum Damage Mechanics (CDM) include explicitly the coupling between damage and mechanical behavior and, therefore, are consistent with the definition of damage as a phenomenon with mechanical consequences. However, this kind of models is characterized by their complexity. Using the concept of lumped models, possible
Perera Velamazán, Ricardo   +2 more
openaire   +2 more sources

Comparison of two models of numerical simulation of low cycle fatigue of a plastic material with small grid inclusions

open access: yes, 2013
Theory of Cells and a numerical FE method based on strain cyclic plasticity, damage model and technology of died elements were used for a prediction of the fatigue life of a metal matrix composite material.
Azmetov, Khakim   +2 more
core  

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