Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Alvin Yung Boon Chong"'
Autor:
Tat-Hean Gan, Alvin Yung Boon Chong, Guojin Feng, Jamil Kanfoud, Jiangtao Sun, Siamak Tavakoli, Cem Selcuk
Publikováno v:
Research in Nondestructive Evaluation. 30:205-230
An enhanced technique using image processing has been developed for automated ultrasonic inspection of composite materials, such as glass/carbon-fibre-reinforced polymer (GFRP or CFRP), to ascertain their structural healthiness. The proposed techniqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97796016a8645103a414e8dee4697038
https://doi.org/10.1080/09349847.2018.1459989
https://doi.org/10.1080/09349847.2018.1459989
Autor:
Alvin Yung Boon Chong, Zhigang Qu, Vassilios Kappatos, Juan Luis Ferrando Chacon, Tat-Hean Gan, Cem Selcuk
Publikováno v:
Research in Nondestructive Evaluation. 27:137-154
A surface flaw found in weld can potentially pose a safety concern to industrial applications which could result into fatal incidents. To increase the integrity of these structures, a new surface flaw identification technique on enhancing the flaw ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9f301a3bdbe3340b2b6bc0f286c0e40
https://doi.org/10.1080/09349847.2015.1102362
https://doi.org/10.1080/09349847.2015.1102362
Publikováno v:
The Journal of the Acoustical Society of America. 134:3619-3630
Two effective medium models are presented and used to predict complex reflection and transmission coefficients of finite periodic arrays of resonant elastic shells as well as their effective density and bulk modulus at low frequencies. Comparisons wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fa16a82859b0b57fe6effeceec49e49
https://doi.org/10.1121/1.4824340
https://doi.org/10.1121/1.4824340
Autor:
Cem Selcuk, Alvin Yung Boon Chong, Tat-Hean Gan, Serafeim Moustakidis, Thayaparan Parthipan, Mathew Legg, K. Hrissagis, Abbas Mohimi, P. Jackson, Vassilios Kappatos
Publikováno v:
ISIE
Inspecting complex aircraft wiring by means of ultrasonic non-destructive testing has been addressed. This paper discusses the progress on the development of software and hardware that enable a novel technique of Long Range Ultrasonic Testing - a sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe6b34756df1ec99dbf5ef381a850e44
https://doi.org/10.1109/isie.2014.6864800
https://doi.org/10.1109/isie.2014.6864800
Predictions and measurements of sound transmission through a periodic array of elastic shells in air
Publikováno v:
The Journal of the Acoustical Society of America. 128(6)
Analytical and numerical approaches have been made to the problems of (a) propagation through a doubly periodic array of elastic shells in air, (b) scattering by a single elastic shell in air, and (c) scattering by a finite periodic array of elastic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a42d49c5af9ca6bcd026945e2da81c62
https://pubmed.ncbi.nlm.nih.gov/21218882
https://pubmed.ncbi.nlm.nih.gov/21218882
Publikováno v:
Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics, IOP Publishing, 2011, 44 (12), pp.125501. ⟨10.1088/0022-3727/44/12/125501⟩
Journal of Physics D: Applied Physics, IOP Publishing, 2011, 44 (12), pp.125501. ⟨10.1088/0022-3727/44/12/125501⟩
Scattering by (a) a single composite scatterer consisting of a concentric arrangement of an outer N-slit rigid cylinder and an inner cylinder which is either rigid or in the form of a thin elastic shell and (b) by a finite periodic array of these sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0f75d55e5d79e3e17f6de33075ca6fe
http://oro.open.ac.uk/31594/1/paperaspublished.pdf
http://oro.open.ac.uk/31594/1/paperaspublished.pdf
Autor:
Juan Vicente Sánchez-Pérez, Olga Umnova, Keith Attenborough, Anton Krynkin, Alvin Yung Boon Chong, Shahram Taherzadeh
Publikováno v:
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname
instname
The acoustical performances of regular arrays of cylindrical elements, with their axes aligned and parallel to a ground plane, have been investigated through predictions and laboratory experiments. Semi-analytical predictions based on multiple scatte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dce59a99a0ce0530d4e63b0ca2762a5d
Publikováno v:
The Journal of the Acoustical Society of America. 132:1891-1891
Sonic crystal structures consisting of periodically-arranged solid vertical cylinders can act as sound barriers at certain frequencies. Their performance depends on the filling fraction which is determined by the spacing and cylinder radius. To be ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9735ee899d13ff870a242d2adc65b7af
https://doi.org/10.1121/1.4754935
https://doi.org/10.1121/1.4754935
Autor:
Alvin Yung Boon Chong, Juan Vicente Sánchez-Pérez, Vicent Romero-García, Keith Attenborough, Shahram Taherzadeh
Publikováno v:
The Journal of the Acoustical Society of America. 128:2373-2373
Sonic crystals (SCs) are periodic arrangement of scatterers embedded in a fluid medium with different elastic properties. One of the main acoustical properties of these materials is the existence of ranges of frequencies where the transmission is for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bc91bd431d1b344163006f030e10587
https://doi.org/10.1121/1.3508431
https://doi.org/10.1121/1.3508431
Publikováno v:
The Journal of the Acoustical Society of America. 128:2372-2372
Multiple scattering in periodically spaced, vertically orientated cylinder arrays produces band gaps, the (Bragg) frequencies of which are determined by the lattice constants. For rigid cylinders these band gaps tend to have azimuthal angle dependenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f53c31be07103fa0aae6274b6f895e1
https://doi.org/10.1121/1.3508428
https://doi.org/10.1121/1.3508428