Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Cliff J. Lissenden"'
Publikováno v:
AIP Advances, Vol 12, Iss 8, Pp 085027-085027-7 (2022)
A locally resonant meta-surface for preferential excitation of a guided mode in a hollow pipe can improve ultrasonic guided wave inspection of pipelines. The proposed meta-surface comprises a periodic arrangement of bonded prismatic rod-like resonato
Externí odkaz:
https://doaj.org/article/0605825949a844019b71aa8e25d9946b
Autor:
Chaitanya Bakre, Seyed Hamidreza Afzalimir, Cory Jamieson, Abdalla Nassar, Edward W. Reutzel, Cliff J. Lissenden
Publikováno v:
Applied Sciences, Vol 12, Iss 23, p 12208 (2022)
This work proposes that laser pulses can generate finite amplitude Rayleigh waves for process monitoring during additive manufacturing. The noncontact process monitoring uses a pulsed laser to generate Rayleigh waves, and an adaptive laser interferom
Externí odkaz:
https://doaj.org/article/60637e7d3d9f4729bc3ac994e4997310
Publikováno v:
Nuclear Engineering and Technology, Vol 50, Iss 6, Pp 890-898 (2018)
Nondestructive inspection (NDI) is an integral part of structural integrity analyses of dry storage casks that house spent nuclear fuel. One significant concern for the structural integrity is stress corrosion cracking in the heat-affected zone of we
Externí odkaz:
https://doaj.org/article/f78c799c465f4dde951a340078d29bf2
Autor:
Gaofeng Sha, Cliff J. Lissenden
Publikováno v:
Sensors, Vol 21, Iss 23, p 7971 (2021)
Ultrasonic guided waves provide unique capabilities for the structural health monitoring of plate-like structures. They can detect and locate various types of material degradation through the interaction of shear-horizontal (SH) waves and Lamb waves
Externí odkaz:
https://doaj.org/article/8125f3c7a9904bc8bc613391a2a36cd8
Autor:
Chaitanya Bakre, Cliff J. Lissenden
Publikováno v:
Sensors, Vol 21, Iss 16, p 5495 (2021)
Rayleigh waves are very useful for ultrasonic nondestructive evaluation of structural and mechanical components. Nonlinear Rayleigh waves have unique sensitivity to the early stages of material degradation because material nonlinearity causes distort
Externí odkaz:
https://doaj.org/article/78609f89f35a41908e739ceb34fff908
Publikováno v:
Applied Sciences, Vol 10, Iss 23, p 8397 (2020)
The hollow long bones of the human appendicular skeleton are known to support the propagation of ultrasonic guided waves, whose potential for diagnosing bone health is being investigated. In this study, ultrasonic guided waves propagating in the diap
Externí odkaz:
https://doaj.org/article/f95fb285fe784c368b85f4b24cedad82
Publikováno v:
Sensors, Vol 19, Iss 6, p 1391 (2019)
Lamb waves propagating within a waveguide often have similar frequency content. If there are multiple Lamb wave modes with the same frequency content, the wavenumber spectrum can be used to distinguish between them. As a result, the wavenumber spectr
Externí odkaz:
https://doaj.org/article/a8aba8f8a2f4431eb23f3437c4472c76
Publikováno v:
Applied Sciences, Vol 9, Iss 2, p 257 (2019)
A recent elastic metamaterial study found that resonators that “clamp” a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study inv
Externí odkaz:
https://doaj.org/article/95d73bbe1afa4f6b98f64a3fdd40bdfb
Autor:
Christopher Hakoda, Cliff J. Lissenden
Publikováno v:
Applied Sciences, Vol 8, Iss 6, p 966 (2018)
The partial-wave method takes advantage of the Christoffel equation’s generality to represent waves within a waveguide. More specifically, the partial-wave method is well known for its usefulness when calculating dispersion curves for multilayered
Externí odkaz:
https://doaj.org/article/741c818bb7024d92b06bbb2323f16091
Publikováno v:
Sensors, Vol 18, Iss 1, p 193 (2018)
Elevated temperature, gamma radiation, and geometric constraints inside dry storage casks for spent nuclear fuel represent a harsh environment for nondestructive inspection of the cask and require that the inspection be conducted with a robotic syste
Externí odkaz:
https://doaj.org/article/6afa07f5cfa1421884e7dc174e4f13b9