Zobrazeno 1 - 10
of 155
pro vyhledávání: '"Olivier Castelnau"'
Autor:
Vincent Jacquemain, Christophe Cheuleu, Nicolas Ranc, Olivier Castelnau, Vincent Michel, Doriana Vinci, Véronique Favier, Cristian Mocuta, Dominique Thiaudiere
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 1, Pp 17-27 (2024)
In the energy production and transportation industries, numerous metallic structures may be subjected to at least several billions of cycles, i.e. loaded in the very high cycle fatigue domain (VHCF). Therefore, to design structures in the VHCF domain
Externí odkaz:
https://doaj.org/article/bf78d74bd793411ab77ce5d35759fd07
Autor:
Estelle E. Ledoux, Morvarid Saki, Jeffrey P. Gay, Matthias Krug, Olivier Castelnau, Wen‐Yi Zhou, Jin S. Zhang, Julien Chantel, Nadège Hilairet, Maxim Bykov, Elena Bykova, Georgios Aprilis, Volodymyr Svitlyk, Gaston Garbarino, Carmen Sanchez‐Valle, Christine Thomas, Sergio Speziale, Sébastien Merkel
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 11, Pp n/a-n/a (2023)
Abstract Wadsleyite is the dominant mineral of the upper portion of the Earth's mantle transition zone (MTZ). As such, understanding plastic deformation of wadsleyite is relevant for the interpretation of observations of seismic signals from this reg
Externí odkaz:
https://doaj.org/article/9b7211ad86a141f5ae169f3492b25db5
Autor:
Amandine Sergeant, Anne Mangeney, Vladislav A. Yastrebov, Fabian Walter, Jean-Paul Montagner, Olivier Castelnau, Eléonore Stutzmann, Pauline Bonnet, Velotioana Jean-Luc Ralaiarisoa, Suzanne Bevan, Adrian Luckman
Publikováno v:
Annals of Glaciology, Vol 60, Pp 75-95 (2019)
Since the 2000s, Greenland ice sheet mass loss has been accelerating, followed by increasing numbers of glacial earthquakes (GEs) at near-grounded glaciers. GEs are caused by calving of km-scale icebergs which capsize against the terminus. Seismic re
Externí odkaz:
https://doaj.org/article/4a625f663710439fbb3a9177e1fce77e
Autor:
Thibaut De Terris, Olivier Castelnau, Zehoua Hadjem-Hamouche, Halim Haddadi, Vincent Michel, Patrice Peyre
Publikováno v:
Metals, Vol 11, Iss 4, p 619 (2021)
The microstructures induced by the laser-powder bed fusion (L-PBF) process have been widely investigated over the last decade, especially on austenitic stainless steels (AISI 316L) and nickel-based superalloys (Inconel 718, Inconel 625). However, the
Externí odkaz:
https://doaj.org/article/36b0a7c412f9472497c097bbe17239ee
Autor:
Anne Mangeney, Pauline Bonnet, Vladislav Yastrebov, Olivier Castelnau, Alban Leroyer, Patrick Queutey, Martin Rueckamp, Amandine Sergeant
One current concern in Climate Sciences is the estimation of the annual amount of ice lost by glaciers and the corresponding rate of sea level rise. Greenland ice sheet contribution is significant with about 30% to the global ice mass losses. The pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6e984ce0f3c72e36cb789d9cf7af3fa
https://doi.org/10.5194/egusphere-egu23-14118
https://doi.org/10.5194/egusphere-egu23-14118
Autor:
Olivier Castelnau, Anne Mangeney, Jean-Paul Montagner, Eleonore Stutzmann, Ruben Ibanez, Francisco Chinesta
The interpretation of earthquakes produced by very large glaciers in Greenland and Antarctica (so-called icequakes) due to iceberg calving at the glacier terminus, crevasse opening, and/or sliding of the glacier over the bedrock, requires an accurate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a552686038f621f39f9ab2fda000f6be
https://doi.org/10.5194/egusphere-egu23-12532
https://doi.org/10.5194/egusphere-egu23-12532
Autor:
Patrick Cordier, Karine Gouriet, Timmo Weidner, James Van Orman, Olivier Castelnau, Jennifer M. Jackson, Philippe Carrez
Publikováno v:
Nature
Nature, 2023, Nature, 613 (7943), pp.303-307. ⟨10.1038/s41586-022-05410-9⟩
Nature, 2023, Nature, 613 (7943), pp.303-307. ⟨10.1038/s41586-022-05410-9⟩
Transport of heat from the interior of the Earth drives convection in the mantle, which involves the deformation of solid rocks over billions of years. The lower mantle of the Earth is mostly composed of iron-bearing bridgmanite MgSiO3 and approximat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f597fe196e73098a48e0f6e7f1373ee4
https://hal.univ-lille.fr/hal-03944762/document
https://hal.univ-lille.fr/hal-03944762/document
Autor:
Ravi Raj Purohit Purushottam Raj Purohit, Daniel Pepin Fowan, Elsa Thune, Stephan Arnaud, Gilbert Chahine, Nils Blanc, Olivier Castelnau, René Guinebretière
Publikováno v:
Applied Physics Letters
Applied Physics Letters, 2022, 121 (18), pp.181901. ⟨10.1063/5.0109058⟩
Applied Physics Letters, 2022, 121 (18), pp.181901. ⟨10.1063/5.0109058⟩
International audience; Polycrystalline materials exhibit physical properties that are driven by both the interatomic crystallographic structure as well as the nature and density of structural defects. Crystallographic evolutions driven by phase tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdcf19e9db5a575abecfba9e2423a69a
https://hal.science/hal-03903558
https://hal.science/hal-03903558
Autor:
Ravi Raj Purohit Purushottam Raj Purohit, Samuel Tardif, Olivier Castelnau, Joel Eymery, René Guinebretière, Odile Robach, Taylan Ors, Jean-Sébastien Micha
Publikováno v:
Journal of Applied Crystallography
Journal of Applied Crystallography, 2022, 55 (4), ⟨10.1107/s1600576722004198⟩
Journal of Applied Crystallography, 2022, 55 (4), ⟨10.1107/s1600576722004198⟩
A feed-forward neural-network-based model is presented to index, in real time, the diffraction spots recorded during synchrotron X-ray Laue microdiffraction experiments. Data dimensionality reduction is applied to extract physical 1D features from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e9441963f432c49fc0382a7e32b58df
https://hdl.handle.net/10985/22223
https://hdl.handle.net/10985/22223
Autor:
K. Derrien, Philippe Carrez, H. Moulinec, Patrick Cordier, Olivier Castelnau, Sebastian Ritterbex
Publikováno v:
Comptes Rendus. Mécanique. 348:827-846
The viscoplastic behavior of polycrystalline Mg 2 SiO 4 wadsleyite aggregates, a major high pressure phase of the mantle transition zone of the Earth (depth range: 410 − 520 km), is obtained by properly bridging several scale transition models. At