Results 31 to 40 of about 33,277 (314)
Dwell Fatigue Crack Growth Behavior of CP-Ti TA2 Welded Joint at 25 °C and 200 °C
Metals, 2023 We report on studies of the dwell fatigue crack growth (FCG) behavior of commercial pure titanium (CP-Ti) TA2 weld joints at 25 °C and 200 °C. Taking into account the effects of load ratio and dwell temperature, the impact of dwell on FCG behavior and ...
Le Chang +3 more
doaj +1 more source
Advances on creep–fatigue damage assessment in notched components [PDF]
, 2017 In this paper, the extended Direct Steady Cyclic Analysis method (eDSCA) within the Linear Matching Method Framework (LMMF) is combined with the Stress Modified Ductility Exhaustion method and the modified Cavity Growth Factor (CGF) for the first time ...
Barbera, D., Chen, H., Liu, Y.
core +2 more sources
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.
doaj +1 more source
Stirling engine: Available tools for long-life assessment [PDF]
A review is presented for the durability approaches applicable to long-time life assessment of Stirling engine hot-section components. The crucial elements are experimental techniques for generating long-time materials property data (both monotonic and ...
Bartolotta, Paul A., Halford, Gary R.
core +2 more sources
Materials Research Express, 2022 In this work, to describe the cycle behavior considering fatigue-creep interaction, a non-unified viscoplastic constitutive model for 316 stainless steel is derived within the irreversible thermodynamic framework.
Yehui Cui +3 more
doaj +1 more source
Numerical analysis of triaxial creep-fatigue interaction of rock salt
Journal of Rock Mechanics and Geotechnical EngineeringThis study investigates the creep-fatigue interaction characteristics of rock salt under triaxial conditions. Utilizing PFC2D to conduct creep-fatigue simulation tests on rock salt under various confining pressures and stress intervals, the research ...
Louis Ngai Yuen Wong, Kai Zhao
doaj +1 more source
Materials & Design, 2020 A series of strain-controlled creep-fatigue tests under different loading waveforms are carried out on GH4169 superalloy at 650 °C. In the macroscopic view, a unified viscoplastic constitutive framework is used to describe cyclic deformation process ...
Run-Zi Wang +4 more
doaj +1 more source
Applied Sciences, 2021 To understand the premature-fracture mechanisms of long-term service damage of an advanced alloy’s (Chinese P92 steel) welded joint, the creep-fatigue (CF) experiments with holding times of 30, 120, 300, 600 and 900 s were individually performed at 923 K.
Yuebing Li +3 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
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Myasthenia gravis (MG) is an autoimmune disorder characterized by antibody‐mediated complement activation. Efgartigimod, a neonatal Fc receptor (FcRn) antagonist, is approved for treating generalized MG (gMG). However, its modulatory effects on upstream innate and adaptive immune cells remain largely unexplored.
Lei Jin +11 more
wiley +1 more source