Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Romali Biswal"'
This study aims to investigate the influence of welding process on the elastic lattice deformation and its effects on fatigue and fracture behavior of S355 G10+M steel, which is widely used in fabrication of offshore wind turbine monopile structures.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adf28ce90ffd38907ca009474ae869dd
https://dspace.lib.cranfield.ac.uk/handle/1826/17035
https://dspace.lib.cranfield.ac.uk/handle/1826/17035
Monopile foundations contain welding residual stresses and are widely used in industry to support offshore wind turbines (OWTs). The monopiles are subjected to hammering loads during installation and cyclic loads during operation, therefore the influ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a121e554122dbd169845fdeca2eef129
http://dspace.lib.cranfield.ac.uk/handle/1826/17009
http://dspace.lib.cranfield.ac.uk/handle/1826/17009
Autor:
Stewart W. Williams, Frank Walther, Jialuo Ding, Romali Biswal, Mustafa Awd, Abdul Khadar Syed, Xiang Zhang
Publikováno v:
International Journal of Fatigue. 122:208-217
This study was aimed at investigating the effect of internal porosity on the fatigue strength of wire + arc additive manufactured titanium alloy (WAAM Ti-6Al-4V). Unlike similar titanium alloys built by the powder bed fusion processes, WAAM Ti-6Al-4V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9982304363c6142db4bfdbea0f737e7
https://doi.org/10.1016/j.ijfatigue.2019.01.017
https://doi.org/10.1016/j.ijfatigue.2019.01.017
Autor:
Ali Mehmanparast, Romali Biswal
Publikováno v:
Procedia Structural Integrity. 17:643-650
Offshore wind turbines (OWT) are subjected to harsh environmental conditions in addition to the variable service loads. The present study is aimed at performing a realistic fatigue life estimation of the monopile structure using operational service l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20058341e105c5d15a3de89c01a0d2d9
https://doi.org/10.1016/j.prostr.2019.08.086
https://doi.org/10.1016/j.prostr.2019.08.086
Thick weldments used in offshore structures frequently act as fatigue crack initiation sites due to stress concentration at weld toe as well as weld residual stress fields. This paper investigates the cyclic deformation behavior of S355 G10+M steel,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::711e81f95c3e624c8d0663503cfff284
https://strathprints.strath.ac.uk/79291/1/Biswal_etal_FFEMS_2021_On_the_performance_of_monopile_weldments.pdf
https://strathprints.strath.ac.uk/79291/1/Biswal_etal_FFEMS_2021_On_the_performance_of_monopile_weldments.pdf
Titanium alloys such as Ti-6Al-4V built by most of the additive manufacturing processes are known to contain process induced defects, non-conventional microstructure and strong crystallographic texture; all of which can affect the fatigue strength. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3425e518ed072c2269bd09848d995202
https://strathprints.strath.ac.uk/82304/1/Shamir_etal_MC_2020_The_role_of_microstructure_and_local_crystallographic_orientation_near_porosity_defects.pdf
https://strathprints.strath.ac.uk/82304/1/Shamir_etal_MC_2020_The_role_of_microstructure_and_local_crystallographic_orientation_near_porosity_defects.pdf
This paper investigates the cyclic deformation behaviour of S355 G10+M steel which is predominantly used in offshore wind applications. The thick weldments were identified as regions prone to fatigue crack initiation due to stress concentration at we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce4b77d3683bf7ce61a6d465d66ba20c
https://doi.org/10.22541/au.160010835.57747997
https://doi.org/10.22541/au.160010835.57747997
Publikováno v:
Additive Manufacturing. 23:433-442
Studies on additive manufactured (AM) materials have shown that porosity reduces the fatigue strength. However, the quantitative impact is not well understood. This paper presents a mechanistic approach to quantify the influence of size, location and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fe072b01087ceda47a2718722f089b8
https://doi.org/10.1016/j.addma.2018.08.024
https://doi.org/10.1016/j.addma.2018.08.024
Publikováno v:
International Journal of Fatigue. 150:106315
Currently, additive manufactured titanium alloy Ti-6Al-4V predominantly fails from process-induced defects, when subjected to cyclic loading in the polished condition. These defects not only lead to premature failure, but also contribute to the signi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d7cc6624c0ff21b8f88ea8c603e6c1c
https://doi.org/10.1016/j.ijfatigue.2021.106315
https://doi.org/10.1016/j.ijfatigue.2021.106315