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Thermo-mecano-metallurgical modelling of welding: application to welded joints in nuclear power plants
(2014-11-17)
The Thermo-Mecano-Metallurgical modelling of welding is considered in this thesis, where the high non-linearity and the multiphysics character of the problem makes necessary to study different areas of Computational ...
General treatment of essential boundary conditions in reduced order models for non-linear problems
(Springer, 2016-03)
Inhomogeneous essential boundary conditions must be carefully treated in the formulation of Reduced Order Models (ROMs) for non-linear problems. In order to investigate this issue, two methods are analysed: one in which ...
Global-local HROM for non-linear thermal problems with irreversible changes of material states
(Elsevier France-editions Scientifiques Medicales Elsevier, 2018-07)
Highly concentrated moving nonlinearities are extremely difficult to solve numerically. The Selective Laser Melting Additive Manufacturing process is a problem of this kind. A material global-local scheme is proposed, which ...
Improving the k-Compressibility of Hyper Reduced Order Models with Moving Sources: Applications to Welding and Phase Change Problems
(Elsevier Science Sa, 2014-06)
The simulation of engineering problems is quite often a complex task that can be time consuming. In this context, the use of Hyper Reduced Order Models (HROMs) is a promising alternative for real-time simulations. In this ...
ZnO-based nanofungicides : Synthesis, characterization and their effect on the coffee fungi Mycena citricolor and Colletotrichum sp.
(2019-05)
mical
route and a ZnO-based nanobiohybrid obtained by green synthesis in an extract of garlic (Allium sativum).
To find out the characteristics of the materials synthesized, X-ray diffraction (XRD), IR spectroscopy and ...
Computational multiscale modeling of fracture problems and its model order reduction
(International Center for Numerical Methods in Engineering, 2017)
This work focuses on the numerical modeling of fracture and its propagationin heterogeneous materials by means of hierarchical multiscale models basedon the FE2 method, addressing at the same time, the problem of the ...