Results 31 to 40 of about 363,241 (312)

Non-Destructive Evaluation of Depth of Surface Cracks Using Ultrasonic Frequency Analysis

Sensors, 2014
Ultrasonic is one of the most common uses of a non-destructive evaluation method for crack detection and characterization. The effectiveness of the acoustic-ultrasound Structural Health Monitoring (SHM) technique for the determination of the depth of the
Shiuh-Chuan Her, Sheng-Tung Lin
doaj   +1 more source

Development of a fretting-fatigue mapping concept: The effect of material properties and surface treatments [PDF]

, 2009
Fretting-fatigue induced by combined localized cyclic contact motion and external bulk fatigue loadings may result in premature and dramatic failure of the contacting components.
Araújo, Araújo, Bueckner, Crossland, Dang Van, Dini, El Haddad, Fouvry, Fouvry, Fouvry, Fouvry, Fouvry, Fouvry, Fouvry, Giannakopoulos, Hills, Hills, Hills, Johnson, K. Kubiak, Kitagawa, Kubiak, McDiarmid, Mindlin, Mugadu, Nowell, Nowell, Proudhon, S. Fouvry, Szolwinski, Taylor, Waterhouse, Zhou   +32 more
core   +1 more source

Application of the Reciprocity Theorem to Scattering of Surface Waves by a Surface Crack in Viscoelastic Material

Applied Sciences, 2022
In this paper, the scattered surface waves created by a surface crack in a homogeneous, isotropic, viscoelastic half space within a plane strain condition was studied.
Li Zheng, Chuanyong Wang, Jiangang Lu, Anyu Sun   +3 more
doaj   +1 more source

An Automated Image-Based Multivariant Concrete Defect Recognition Using a Convolutional Neural Network with an Integrated Pooling Module

Sensors, 2022
Buildings and infrastructure in congested metropolitan areas are continuously deteriorating. Various structural flaws such as surface cracks, spalling, delamination, and other defects are found, and keep on progressing.
Bubryur Kim, Se-Woon Choi, Gang Hu, Dong-Eun Lee, Ronnie O. Serfa Juan   +4 more
doaj   +1 more source

Crack Front Waves and the dynamics of a rapidly moving crack

, 2001
Crack front waves are localized waves that propagate along the leading edge of a crack. They are generated by the interaction of a crack with a localized material inhomogeneity.
A. B. Movchan, A. Tsirk, B. Q. Vu, E. Bouchaud, E. K. Beauchamp, E. Sharon, E. Sharon, E. Sharon, E. Sharon, E. Sharon, G. Cohen, G. Perrin, H. Bergkvist, J. D. Eshelby, J. F. Boudet, J. F. Boudet, J. Fineberg, J. Fineberg, J. Fineberg, J. R. Rice, J. R. Rice, J. R. Willis, J. R. Willis, J. W. Morrissey, J. W. Morrissey, K. J. Maloy, L. B. Freund, S. Ramanathan, T. Cramer, Y. Ben-Zion   +29 more
core   +1 more source

Quasistatic Cracks and Minimal Energy Surfaces [PDF]

Physical Review Letters, 1998
7 pages, aps.sty-latex, 7 ...
Räisänen, V.I., Seppälä, E.T., Alava, M.J., Duxbury, P.M.   +3 more
openaire   +3 more sources

The analysis of bearing capacity of main pipeline in presence of corrosion defects [PDF]

Омский научный вестник, 2019
A mathematical model is presented that allows modeling fatigue defects of corrosion origin on main pipelines. A method for assessing the crack resistance of the main pipeline wall with a corrosion defect is proposed.
К. А. Vansovich, I. P. Aistov, А. А. Nakhlestkin, D. S. Beseliya   +3 more
doaj   +1 more source

A safety assessment approach to pressure vessels based on machine learning

Frontiers in Materials, 2022
The safety assessment of a pressure vessel with a surface crack is an important part of the safety assessment of engineering equipment. However, the existing methods are mostly based on the assumption of plane specimens and the K criterion applicable to ...
Xing Zhang, Yifeng Hu, Junping Shi, Hao Liang, Yong Xu, Xiaoshan Cao   +5 more
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

Perturbatıon Solution for a Cracked Euler-Bernoulli Beam

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
The natural frequencies and mode shapes of an Euler-Bernoulli beam with a rectangular cross- section, which has a surface crack, is investigated. The crack is modeled as a change (sudden or gradual) in the cross-section of the beam, and a modified ...
Lütfi Emir Sakman
doaj   +1 more source