Results 71 to 80 of about 235,418 (287)
A finite element analysis of fatigue crack closure [PDF]
Experiments have shown that fatigue cracks close at positive loads during constant-amplitude load cycling. The crack-closure phenomenon is caused by residual plastic deformations remaining in the wake of an advancing crack tip.
Newman, J. C., Jr.
core +1 more source
Effect of Structural Anisotropy on Deformation Properties of Granite under Cyclic Loading [PDF]
, 1997 The effects of structural anisotropy on the deformation properties of granite under cyclic loading have not been clarified. In this paper, four types of granite specimens are prepared with an angle θ of the structural anisotropic plane to the loading ...
Kusumi Harushige +5 more
core +1 more source
Obtaining the fatigue laws of bituminous mixtures from a strain sweep test: effect of temperature and aging [PDF]
, 2017 Fatigue is associated with the deterioration caused by applying repeated loads, and is affected by temperature or aging. Generally, time sweep tests are used to simulate fatigue, in order to obtain the fatigue laws.
Botella Nieto, Ramón +3 more
core +2 more sources
Advanced Functional Materials, EarlyView.By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb +3 more
wiley +1 more source
Discerning the Fatigue Crack Growth Behavior of API X65 Steels Under Sequence Loading
Latin American Journal of Solids and StructuresThis paper presents the effect of sequence loading on fatigue crack growth of API X65 steel tested in room temperature. Most of pipeline steels are subjected to wide spectrum of loading during the length of service.
N. I. I. Mansor +2 more
doaj +1 more source
Fatigue crack growth of cast austenitic stainless steels
工程科学学报, 2015 The influences of stress ratio, single overload and high-low loading sequence on the fatigue crack growth of Z3CN20-09M cast austenitic stainless steels were studied with compact tension specimens. When the stress intensity factor range is identical, the
LU: Xu-ming +3 more
doaj +1 more source
Experimental investigation of fatigue crack initiation from notch for 2024 T351 Al-alloy
Fracture and Structural Integrity, 2020 In this investigation, fatigue criterion was established to predict crack-initiation at the tip of a notch in aged hardening aluminum alloy. This criterion was used to predict the residual lifetime in aeronautical structures using concept of local stress
Mustapha Benachour +2 more
doaj +1 more source
Measurement and analysis of critical crack tip processes during fatigue crack growth [PDF]
The mechanics of fatigue crack growth under constant-amplitudes and variable-amplitude loading were examined. Critical loading histories involving relatively simple overload and overload/underload cycles were studied to provide a basic understanding of ...
Davidson, D. L. +2 more
core +1 more source
A new test methodology based on structural resonance for mode I fatigue delamination growth in an unidirectional composite [PDF]
, 2013 A specific device has been set up to test by vibration resonance the mode I fatigue delamination growth onset of composite laminates. This test system, based on the DCB test specimen, is a mass-spring-specimen dynamic system designed to resonate.
Fressinet, Mathieu +4 more
core +4 more sources
Advanced Functional Materials, EarlyView.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source