Results 21 to 30 of about 5,843 (265)
Nihon Kikai Gakkai ronbunshu, 2018 Creep-fatigue damage preferentially exceeds at stress concentration portions in high temperature components such as steam turbine rotors during cyclic start up- shut down operation.
Takashi OGATA +2 more
doaj +1 more source
IEEE Access, 2020 For sustainable operation, power plants require accurate damage assessment of the steam turbines used for power generation. In the past few decades, steam turbine designs have considered only steady-state operation, without accounting for thermal cyclic ...
Woosung Choi +2 more
doaj +1 more source
Studies of High-Temperature Fatigue Behavior and Mechanism for Nickel-Based Superalloy Inconel 625
Metals, 2022 Strain-controlled continuous fatigue and creep–fatigue tests were carried out at 700 °C and 800 °C on Inconel 625 alloy. The effects of strain rate and tensile-hold time on cyclic stress response and fatigue life were investigated.
Zhenxing Wu +4 more
doaj +1 more source
Muscle Activity Adaptations to Spinal Tissue Creep in the Presence of Muscle Fatigue. [PDF]
PLoS ONE, 2016 The aim of this study was to identify adaptations in muscle activity distribution to spinal tissue creep in presence of muscle fatigue.Twenty-three healthy participants performed a fatigue task before and after 30 minutes of passive spinal tissue ...
Jacques Abboud +2 more
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Modeling of creep-fatigue interaction effects on crack growth at elevated temperatures
MATEC Web of Conferences, 2018 The well-known load frequency effect on creep-fatigue crack growth is explained by the interactions between fatigue and creep loading and is quantified using the concept of plasticity-induced crack closure.
Potirniche Gabriel P.
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MATEC Web of Conferences, 2018 This paper reports on a computational study and experimental validation of creep-fatigue crack growth rates at high temperature in two structural materials.
Ramirez Jose +6 more
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Metals, 2018 Background—Creep-fatigue damage is generally identified as the combined effect of fatigue and creep. This behaviour is macroscopically described by crack growth, wherein fatigue and creep follow different principles.
Dan Liu, Dirk John Pons
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Journal of Materials Research and Technology, 2020 The alternation of creep properties is unavoidable in welded structures after suffering from cyclic damage, which may lead to the premature failure of power plant units and hard to predict. This work is devoted to clarify the influence of prior low cycle
Wei Zhang +4 more
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Characterization of the cyclic softening and remaining creep behaviour of P92 steel weldment
Journal of Materials Research and Technology, 2021 Different micro-regions of weldment are expected to present various cyclic softening behaviours during creep–fatigue interaction (CFI), which has a significant influence on the remaining mechanical properties.
Wei Zhang +6 more
doaj +1 more source
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