Results 31 to 40 of about 1,354,072 (296)

Prediction of fatigue crack initiation life in SA312 Type 304LN austenitic stainless steel straight pipes with notch

open access: yesNuclear Engineering and Technology, 2022
In the nuclear power plants, stainless steel is widely used for fabrication of various components such as piping and pipe fittings. These piping components are subjected to cyclic loading due to start up and shut down of the nuclear power plants.
A. Ramachandra Murthy   +4 more
doaj   +1 more source

Mechanism of crack initiation and early growth of high strength steels in very high cycle fatigue regime

open access: yes, 2020
In this paper, we capture the evolution characteristic of interior crack initiation and early growth of a bearing steel (GCr15) with tensile strength bigger than 2000 MPa in very high cycle fatigue (VHCF) regime by variable amplitude loadings. The traces
Qingyuan Song, Chengqi Sun
semanticscholar   +1 more source

Effect of crystallographic orientation and geometrical compatibility on fatigue crack initiation and propagation in rolled Ti-6Al-4V alloy

open access: yesActa Materialia, 2019
Fatigue crack initiation and short crack propagation was systematically investigated in a rolled α / β Ti-6Al-4V alloy through a combination of in situ optical microscopy observations during fully-reversed uniaxial fatigue experiments and post-mortem ...
Fabien Briffod   +3 more
semanticscholar   +1 more source

Experimental Study on the Effects of In Situ Stress on the Initiation and Propagation of Cracks during Hard Rock Blasting

open access: yesApplied Sciences, 2021
In situ stress is one of the most important factors affecting rock dynamic fractures during blasting excavation of deep rock mass that generally is hard rock.
Guangliang Yan   +5 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Crack Growth Behavior through Wall Pipes under Impact Loading And Moisten Environment

open access: yesJournal of Engineering, 2018
This search concerns study the crack growth in the wall of pipes made of low carbon steel under the impact load and using the effect of moisture (rate of moisture 50%). The environmental conditions were controlled using high accuracy digital control with
Ali Jamal Khaled, Ahmed Abdul Hussain
doaj   +1 more source

Explosive full-field strain and crack dynamic fracture characteristics of a linear shaped charge

open access: yes工程科学学报, 2022
This study explores the full-field strain and dynamic fracture characteristics of a linear shaped charge under different initiation positions. The explosion dynamic caustic line experiment system is employed to examine the characteristics of the blast ...
Jin-jing ZUO   +4 more
doaj   +1 more source

Crack initiation criteria in fretting fatigue

open access: yesWear, 1990
Abstract This paper is a description of a series of fretting fatigue tests on an Al/Cu alloy in which the contact size was varied while the other relevant parameters were held constant. The fretting fatigue life was found to be infinite below a certain critical contact width.
Nowell, D, Hills, D
openaire   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Stress-state dependent cohesive model for fatigue crack growth [PDF]

open access: yesFracture and Structural Integrity, 2016
In the cohesive framework, a stress-state dependent cohesive model, combined with an irreversible damage parameter has been used in simulation of fatigue crack growth initiation and continued growth.
R. Shravan Kumar   +4 more
doaj   +3 more sources

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