Results 21 to 30 of about 28,921 (264)
Rail fatigue crack propagation in high-speed wheel/rail rolling contact
Journal of Modern Transportation, 2017 To study the wheel/rail rolling contact fatigue of high-speed trains, we obtain the distribution of contact forces between wheel and rail by introducing the strain-rate effect.
Xiaoyu Jiang +3 more
doaj +1 more source
Metals, 2022 Mechanical behaviors at fatigue crack tips of cracked specimens under negative loading ratios are studied in detail by the finite element method in this paper.
Xinting Miao +4 more
doaj +1 more source
Mode Localization of a Cracked Blade-Disks [PDF]
Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 1998 In this paper, the effect of blade crack on the mode localization of a rotating blade-disk is studied. Pretwisted taper beams are used to simulate blades of a blade-disk. The crack on the blade can be regarded as a local disorder of this periodically coupled blades system.
J. H. Kuang, B. W. Huang
openaire +1 more source
Non-invasive analysis of macro-crack on the characteristics of ultrasonic guided wave
Journal of Radiation Research and Applied Sciences, 2023 The effects of macro-crack in plates on the characteristic of ultrasonic guided wave were studied. Using the Finite Element Model and numerical calculation method, the finite element mesh models of various macro-crack in aluminum plate were established ...
Hanfei Zhang, Yanyan Luo
doaj +1 more source
Applied Sciences, 2021 The crack-propagation form may appear as an arbitrary mixed-mode fracture in an engineering structure due to an irregular internal crack. It is of great significance to research the mixed-mode fracture of materials with cracks.
Xin Pan +4 more
doaj +1 more source
U.Porto Journal of Engineering, 2022 Cracks weaken structures. When the crack size increases in service, the structure becomes weaker than its earlier condition. Lastly, the structure may break down due to a small crack.
vikas khalkar +7 more
doaj +1 more source
矿业科学学报, 2020 A new approach is provided to study the growth problems of mode Ⅰ and mode Ⅰ-Ⅱ mixed cracks, Split Hopkinson Pressure Bar(SHPB) is used to impact the PMMA USH(Unilateral semicircular hole) specimen containing precast crack.Results of mode Ⅰ cracks and ...
Li Chengxiao, Zhang Yuantong, An Chen
doaj +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS 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
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source