Zobrazeno 1 - 10 of 88 pro vyhledávání: '"Ioannis Stefanou"'
1
Preventing earthquake instabilities and inducing controlled, slow-slip by active fluid pressure control in the vicinity of a single seismic fault
Autor: Ioannis Stefanou, Georgios Tzortzopoulos, Diego Gutierrez-Oribio
We propose a theory for preventing instabilities in frictionally unstable systems such as earthquakes are. We exploit the dependence of friction on fluid pressure and use it as a backdoor for provoking controlled, slow-slip over a single mature seism
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ab788937eb37f2c61e1388e23654e07
https://doi.org/10.5194/egusphere-egu23-14939
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2
Controlling earthquake-like instabilities in the laboratory
Autor: Ioannis Stefanou, Georgios Tzortzopoulos, Philipp Braun, Diego Gutierrez-Oribio
We perform laboratory experiments of decametric scale using a novel triplet apparatus (Fig. 1) that allows (a) to reproduce earthquake-like instabilities and (b) to prevent them by active fluid pressure adjustment. The dynamic earthquake events are p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45c59c2710085473e1bf7c09f55aa58b
https://doi.org/10.5194/egusphere-egu23-8589
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3
Fast Boundary Element Methods for fault mechanics and earthquake control
Autor: Laura Bagur, Stéphanie Chaillat, Jean-François Semblat, Ioannis Stefanou, Pierre Romanet
Earthquakes due to either natural or anthropogenic sources cause important human and material damage. In both cases, the presence of pore fluid influence the triggering of seismic instabilities. Preliminary results, done in the context of the Europea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc26c0a692ee878ce1071ec366b19830
https://doi.org/10.5194/egusphere-egu23-14727
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4
Viscosity and thermal pressurization during large seismic slip lead to rateand state phenomenology
Autor: Alexandros Stathas, Ioannis Stefanou
In this paper, based on the model of thermal pressurization, we present a new way for the emergence of rate and state phenomenology (RSF, friction law) during the earthquake cycle. In the framework of fault mechanics, the common physical mechanism fo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77c1260be219152a1731082cea546eed
https://doi.org/10.5194/egusphere-egu23-14607
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7
Robust Tracking for the diffusion equation using sliding-mode boundary control
Autor: Diego Gutierrez-Oribio, Yury Orlov, Ioannis Stefanou, Franck Plestan
Publikováno v: 61st IEEE Conference on Decision and Control
61st IEEE Conference on Decision and Control, Dec 2022, Cancum, Mexico
International audience; Robust output tracking is addressed in this paper for a diffusion equation with Neumann boundary conditions and anti-collocated boundary input and output. The desired reference tracking is solved using the well-known flatness
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78574aba39e83da3de629379088b21e8
https://hal.science/hal-03774397/file/CDC_2022.pdf
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8
Evolution TANN and the identification of internal variables and evolution equations in solid mechanics
Autor: Filippo Masi, Ioannis Stefanou
Data-driven and deep learning approaches have demonstrated to have the potential of replacing classical constitutive models for complex materials. Yet, the necessity of structuring constitutive models with an incremental formulation has given rise to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbae7406abb896feb2f217d4e9fec7fb
http://arxiv.org/abs/2209.13269
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