Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Alf Egil Jensen"'
Publikováno v:
Journal of Ship Research. 45:205-215
A method for measurement of global loads on a vessel, using strain measurements from a network of strain sensors and extensive Žnite-element analyses (FEA) with idealistic load cases, is presented. The sensors are attached at carefully selected loca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7acc74e529c005ba6e64b5dcf0b68f8
https://doi.org/10.5957/jsr.2001.45.3.205
https://doi.org/10.5957/jsr.2001.45.3.205
Autor:
Gregg Johnson, Geir Bjarte Havsgard, Alf Egil Jensen, Karianne Pran, G. Sagvolden, Gunnar Wang, Sandeep T. Vohra
Publikováno v:
Smart Materials and Structures. 10:472-478
We discuss the need for ship hull monitoring and the roles such a system may fill during the different stages of a ship's lifetime. We have found that fibre optic sensors are well suited for this application and present the fibre Bragg grating techno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71b78996558df2a11016f68e28dbc0be
https://doi.org/10.1088/0964-1726/10/3/308
https://doi.org/10.1088/0964-1726/10/3/308
Autor:
Sandeep T. Vohra, Alf Egil Jensen, Gunnar Wang, Anthony Dandridge, Karianne Pran, Michael A. Davis, Geir Bjarte Havsgard
Publikováno v:
Composites Part B: Engineering. 31:187-198
Drop test experiments have been performed with a FRP sandwich panel instrumented with a network of 16 fibre optic (FO) Bragg strain sensors, together with conventional electrical strain gauges for control and verification. The drop tests simulate sla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28e1f547e7cf5dcf0b028ae46497e1f4
https://doi.org/10.1016/s1359-8368(00)00004-4
https://doi.org/10.1016/s1359-8368(00)00004-4
Autor:
Fridtjov Irgens, Alf Egil Jensen
Publikováno v:
Journal of Intelligent Material Systems and Structures. 10:46-55
In multi-hull marine vehicles assembled by FRP sandwich composite materials, problems with delamination and skin/core debonding are reported. An early damage warning (EDW) system for delamination detection in marine vessels based on measurements of b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19cb60a7163baf61d33617ea973b5646
https://doi.org/10.1177/1045389x9901000106
https://doi.org/10.1177/1045389x9901000106
Publikováno v:
FAST 2001.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e1d1853a27e1427c69af3e0f84cc67
https://doi.org/10.3940/rina.ft.2001.85
https://doi.org/10.3940/rina.ft.2001.85
Autor:
Knut Arne Hegstad, Lex Malsawma, Alf Egil Jensen, Geir Sagvolden, Gunnar Wang, Gregg Johnson, Karianne Pran, Chia-Chen Chang, Øystein Farsund
Publikováno v:
SPIE Proceedings.
We report on the instrumentation of a high-speed air-cushion catamaran (Surface Effect Ship) with more than 50 fiber optic Bragg grating strain gauges, as well as conventional resistive strain gauges, accelerometers, a Motion Reference Unit and Globa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5597eb5d7aa4ad2e1a319ea1cee2e902
https://doi.org/10.1117/12.388126
https://doi.org/10.1117/12.388126
Autor:
Per-Ola Baalerud, Geir Bjarte Havsgard, Karianne Pran, Anthony Dandridge, Sverre Knudsen, Alf Egil Jensen, Sandeep T. Vohra, Gunnar Wang, Michael A. Davis
Publikováno v:
SPIE Proceedings.
Under the Composite Hull Embedded Sensor System (CHESS) program, which is a co-operative program run jointly by FFI and NRL, a drop test with a composite sandwich plate has been performed [1]. The plate was designed to have similar mechanical propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e38cf7e4631dfb69c5e1aff475890ab8
https://doi.org/10.1117/12.309672
https://doi.org/10.1117/12.309672
Autor:
Alf Egil Jensen, Fridtjov Irgens
Publikováno v:
SPIE Proceedings.
In multi-hull marine vehicles assembled by FRP sandwich composite materials problems with delamination and skin/core debonding are reported. High frequency vibrations in foam core sandwich materials are investigated to see if it was possible to apply
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2deaf08eeb911aa6d571014f17b97665
https://doi.org/10.1117/12.310616
https://doi.org/10.1117/12.310616
Publikováno v:
SPIE Proceedings.
The experimental feasibility study using fiber optic sensors, strain gauges and speckleinterferometry (ESPI), indicates that delamination in FRP-sandwich structures can be detected by monitoring changes in the vibrational resonance frequencies. The f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e30c42ff26ae00194893ceba0d6cff02
https://doi.org/10.1117/12.184810
https://doi.org/10.1117/12.184810
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