BrainMap

Liviu Marin

Professor

Professor - UNIVERSITATEA BUCURESTI

Other affiliations

Senior Researcher I - INSTITUTUL DE STATISTICA MATEMATICA SI MATEMATICA APLICATA AL ACADEMIEI ROMANE''GHEORGHE MIHOC - CAIUS IACOB' (Romania)

Researcher | Teaching staff | Scientific reviewer | PhD supervisor

Web of Science ResearcherID: C-4726-2011

Curriculum Vitae (13/07/2021)

Expertise & keywords

Computational Methods for Inverse Problems Associated with Solids Subject to Mechanical and Thermal Loads Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0521 2011 - 2016

Role in this project:

Coordinating institution: Institutul de Mecanica Solidelor al Academiei Romane

Project partners: Institutul de Mecanica Solidelor al Academiei Romane (RO)

Affiliation: Institutul de Mecanica Solidelor al Academiei Romane (RO)

Project website: http://www.imsar.ro/html/___pn_ii-id-pce-2011-3-0521.html

Abstract:

The aims of this project are the theoretical and numerical approaches to some inverse problems for solids subject to simultaneous thermal and mechanical loads. The following classical and major classes of inverse problems in thermoelasticity are considered:

(1)Reconstruction of missing boundary conditions on part of the boundary occupied by the solid from data available on the remaining accessible boundary and some additional measurements, usually given in the form of either over-specified boundary data (Cauchy data) or internal measurements (strains, displacements, temperature).

(2)Inverse geometric problems, e.g. identification of an unknown inaccessible part of the outer boundary and detection of internal flaws (cavities, inclusions) from additional measurements.

Since these inverse problems are ill-posed, their solutions have a highly unstable behaviour in the sense of Hadamard. Standard solution methods usually used for solving direct problems in thermoelasticity will fail to produce accurate, stable and physically meaningful results for inverse problems. In such situations, non-standard solution methods, based on various variational and regularization approaches, are sought. The originality and novelty of this proposal are represented by the investigation, development and numerical implementation (via the BEM and meshless methods) of convergent, stable and robust (non-)iterative algorithms for the solution of the aforementioned inverse thermoelastic problems.

FROM MICRO TO MACRO - CONTINUUM SCALE MODELING OF ADVANCED MATERIALS IN VIRTUAL FABRICATION Call name: Complex Exploratory Research Projects - PCCE-2008 call
PN-II-ID-PCCE-2008-0100 2010 - 2013

Role in this project: Key expert

Coordinating institution: Universitatea Tehnica din Cluj Napoca, CENTRUL DE CERCETARE IN TEHNOLOGIA DEFORMARII TABLELOR

Project partners: Universitatea Tehnica din Cluj Napoca, CENTRUL DE CERCETARE IN TEHNOLOGIA DEFORMARII TABLELOR (RO); Universitatea Tehnica din Cluj Napoca, LABORATOR DE MICROSCOPIE ELETRONICA (RO); Universitatea Tehnica din Cluj Napoca, LABORATOR DE STIINTA MATERIALELOR, FILME SUBTIRI (RO); Universitatea Tehnica din Cluj Napoca, CENTRUL DE CERCETAREIN PRELUCRAREA IMAGINILOR SI RECUNOASTEREA FORMELOR (RO); Institutul de Matematica Simion Stoilov al Academiei Romane (RO); Universitatea din Bucuresti (RO)

Affiliation: Universitatea din Bucuresti (RO)

Project website: http://www.comod.utcluj.ro

Abstract:

The purpose of the project consists in the development material models at microscopic scale and their transfer to macroscopic scale by implementation in computer programmes for the simulation of sheet metal forming processes. In order to achieve this purpose, four objectives have been defined. The first objective consists in the experimental characterization of the materials selected for testing at micro- and macro-level. By achieving this objective, a database referring to the plastic behaviour of the tested materials will be created. The second objective consists in the development of plasticity models at micro- and macro-level. By achieving this objective, the members of the consortium will have a set of realistic and robust plasticity models able to describe the anisotropic behaviour of materials. The third objective consists in the implementation of the previously developed models in computer programmes for the simulation of the sheet metal forming processes. By achieving this objective, the consortium will have a set of robust and efficient computer programmes for the numerical simulation of hydraulic bulging, deep-drawing of cylindrical parts and prediction of the forming limit curves. The last objective of the project consists in the experimental validation the simulation programmes previously elaborated. By achieving this objective, a set of simulation programmes having a high accuracy will be available for the use in industrial applications with the aim of obtaining a realistic and robust virtual prototype. The achievement of the general purpose needs the cooperation between experts from interdisciplinary domains and having a rich expertise in modelling, numerical methods, experimental procedures, with a comprehensive understanding of the phenomena that occur at micro- and macroscopic scale. With this aim in view, an interdisciplinary and complementary consortium as concerns the scientific background and the laboratory equipment has been established.

Call name: Premierea obtinerii atestatului de abilitare - Competitia 2015
PN-II-RU-ABIL-2015-2-0029 2015 -

Role in this project:

Coordinating institution: UNIVERSITATEA BUCURESTI

Project partners: UNIVERSITATEA BUCURESTI (RO)

Affiliation: UNIVERSITATEA BUCURESTI (RO)

Project website:

Abstract:

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator	Download (5.05 kb) 24/03/2017
List of research grants as partner team leader	Download (16.39 kb) 24/03/2017
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects	Download (5.19 kb) 10/05/2016