Results 41 to 50 of about 188,708 (309)
Crack front segmentation under combined mode I - and mode III - loading [PDF]
Fracture and Structural Integrity, 2016 ABSTRACT. 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 of its initial orientation
A. Eberlein , H. A. Richard
doaj +1 more source
Application of local and non-local approaches to multiple fatigue crack initiation and propagation [PDF]
, 2003 Fatigue strength conditions presented in terms of normalized equivalent stress functionals defined on loading processes are used to unite the stages of material damage with fatigue crack initiation and multiple crack propagation under arbitrary loading ...
Mikhailov, SE, Namestnikova, IV
core
, 2019 Most of the existing methods for fatigue-driven delamination are limited to two-dimensional (2D) applications or their predictive capabilities have not been validated in three-dimensional (3D) problems.
Bak, Brian L. V. +6 more
core +1 more source
Arthritis Care &Research, EarlyView.Objective We aimed to test the efficacy of personalized treatment of older veterans with chronic low back pain (CLBP) delivered by Aging Back Clinics (ABCs) as compared with usual care (UC). Methods Two hundred ninety‐nine veterans aged 65 to 89 with CLBP from three Veterans Affairs (VA) medical centers underwent baseline testing, randomization to ABC ...
Debra K. Weiner +9 more
wiley +1 more source
Variable mode-mixity during fatigue cycles – crack tip parameters determined from displacement fields measured by digital image correlation [PDF]
Fracture and Structural Integrity, 2017 This paper focusses on discussing equivalent stress intensity factors and kink angles after a change of mode-mixity from one cycle to the next and when the mode-mixity changes continuously during the fatigue cycles.
Michael Vormwald +4 more
doaj +3 more sources
Observations and modelling of non-proportional mixed mode cyclic loading [PDF]
MATEC Web of Conferences, 2019 Under non-proportional mixed-mode loading conditions at the crack tip, some observations are reported. They are limited to cases of cylindrical specimens under normal force and torsion. The fatigue cracks have been initiated by the same loading for which
Vormwald Michael
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Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys
Fracture and Structural Integrity, 2022 In this paper the fatigue crack growth tests were carried out on surface-crack tension (SCT) specimens, made of 7050 and Ti6Al4V alloys, with initial semi-elliptical surface cracks.
R.R. Yarullin, M.M. Yakovlev
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Thermoelastic investigations for fatigue life assessment
, 2004 An investigation is presented on the suitability and accuracy of a thermoelastic technique for the analysis of fatigue cracks. The stress intensity factor ranges ΔKI and ΔKII are determined from thermoelastic data recorded from around the tip of a sharp ...
Marsavina, L., Tomlinson, R.A.
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Characterization of crack nucleation in TA6V under fretting-fatigue loading using the potential drop technique [PDF]
, 2010 Crack initiation in a Ti-6Al-4V alloy was investigated experimentally in fretting fatigue conditions. A cylinder-plane geometry was used for the contact, and partial slip conditions were considered.
Andersson +29 more
core +2 more sources
Cognitive Behavioral Therapy for Youth with Childhood‐Onset Lupus: A Randomized Clinical Trial
Arthritis Care &Research, Accepted Article.Objective Our objective was to determine the feasibility and acceptability of the Treatment and Education Approach for Childhood‐onset Lupus (TEACH), a six‐session cognitive behavioral intervention addressing depressive, fatigue, and pain symptoms, delivered remotely to individual youth with lupus by a trained interventionist.
Natoshia R. Cunningham +29 more
wiley +1 more source