Results 41 to 50 of about 324,138 (296)
Crack path for run-out specimens in fatigue tests: is it belonging to high- or very-high-cycle fatigue regime? [PDF]
Fracture and Structural Integrity, 2015 Fatigue tests run-out specimens up to 106 – 5x107 load cycles are used to determine the stress level named “fatigue limit”. Nevertheless, it is not clear what kind of fatigue cracking takes or will take place in these specimens. To discuss this problem,
A. Shanyavskiy
doaj +3 more sources
Assessment of Fatigue Life and Failure Criteria in Ultrasonic Testing Through Thermal Analyses
Applied SciencesAn experimental study was conducted to analyze temperature evolution during very high cycle fatigue tests. The temperature–number of cycles (T–N) curve is typically divided into three phases: Phase I—a rapid temperature increases at the start of the test,
Maria Clara Carvalho Teixeira +4 more
doaj +1 more source
Estimation of Low-Cycle Fatigue Curves of High-Strength and Welded Steel 10CrNi3MoV [PDF]
, 2019 In this work is tested applicability of the extended uniform material law for high-strength steel on 10CrNi3MoV steel and its weld. Predicted low-cycle fatigue curves differ significantly from the measurements. Despite the reported scientific effort to
Kráčalík, Michal
core +1 more source
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
Crack growth behaviour of aluminium wrought alloys in the Very High Cycle Fatigue regime [PDF]
MATEC Web of Conferences, 2018 Investigations have shown that in the regime of Very High Cycle Fatigue (VHCF) “natural” crack initiation often takes place underneath the material surface leading to crack propagation without contact to atmospheric components.
Bülbül Fatih +5 more
doaj +2 more sources
Very High Cycle Fatigue (VHCF) of notched specimens: a review
Fracture and Structural IntegrityA large number of mechanical components are subjected to fatigue loading beyond 106 cycles. The VHCF behaviour of smooth specimens has been extensively investigated in the recent years, even if more efforts are necessary to reveal the mecahnism ...
Paolo Zuliani +4 more
doaj +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
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Microstructural features controlling very high cycle fatigue of nitrided maraging steel [PDF]
, 2014 Maraging steels belong to the group of ultra-high strength materials and are often used in critical aerospace, automotive and tooling components. By applying a surface treatment such as nitriding, the fatigue and wear resistance can be improved.
Bliznuk, Vitaliy +3 more
core +1 more source
Effect of low cycle fatigue pre-damage on very high cycle fatigue
Theoretical and Applied Mechanics Letters, 2012 AbstractCarbon-manganese steel is often applied in components of pipes in nuclear plant. Ultrasonic fatigue tests following low cycle fatigue (LCF) cycles damaged are used to study the strength of very high cycle fatigure (VHCF). The comparison of test results of simple VHCF and cumulative fatigue (LCF plus VHCF) shows that LCF load influences the ...
Huang, Zhiyong +3 more
openaire +1 more source