[NotiAMCA] Seminario del prof. Manolis Papadrakakis - ULTIMO Recordatorio

[Victorio Sonzogni]

----------  Mensaje reenviado  ----------

Asunto: Seminario del prof. Manolis Papadrakakis - ULTIMO Recordatorio
Fecha: Sáb 20 Sep 2008
De: "Eduardo Dvorkin" <edvorkin en fi.uba.ar>
Para: "Eduardo Dvorkin" <edvorkin en fi.uba.ar>

Estimados,
El martes 23 de septiembre a las 17hs el Prof. Manolis Papadrakakis
(http://users.civil.ntua.gr/papadrakakis/), una de las figuras más
importantes del escenario internacional de la mecánica Computacional,
desarrollará un seminario en el Salón del Consejo de la Facultad de
Ingeniería de la UBA (Paseo Colón 850 PB).
El título del seminario será: “Computational Challenges in Dynamic Analysis
and Design of Structures”.
Adjunto un resumen del seminario y un CV reducido del Prof. Papadrakakis.
 
 
Los esperamos,
Eduardo Dvorkin


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Computational Challenges in 
Dynamic Analysis and Design of Structures


Professor Manolis Papadrakakis

Director of the Institute of Structural Analysis and Seismic Research
School of Civil Engineering
National Technical University of Athens, Greece

Performance-based design (PBD) is the current trend in designing structures 
with improved performance. The main objective of PBD is to achieve more 
predictable and reliable levels of safety against natural hazards. According 
to the PBD concept, structures should be able to resist dynamic loads in a 
quantifiable manner to preset levels of intensity. PBD procedures are 
multi-level design approaches where various levels of performance objectives 
are considered. Due to the significant improvements achieved in structural 
optimization methods and the advancements in computer resources, PBD combined 
with structural optimization has become an important ingredient of structural 
design.
The concept of PBD is incorporated in the framework of Reliability-Based 
Design Optimization (RBDO) for the design of real-world 3D buildings, where 
the initial construction cost is considered as the objective function to be 
minimized. Two types of random variables are taken into account: random 
variables that influence the level of dynamic demand and random variables 
that affect the structural capacity. The optimum designs achieved with the 
RBDO formulation are compared to those obtained through a deterministic-based 
formulation of the optimization problem.
The Monte Carlo Simulation (MCS) is applied for the calculation of limit-state 
failure probabilities. Although a number of variance reduction techniques 
have been proposed for reducing the computational cost of the MCS, its 
implementation remains computationally inefficient, especially in real-world 
problems where dynamic loading is taken into account. In order to reduce the 
computational demand of the MCS soft-computing methodologies and in 
particular Artificial Neural Networks combined with the Response Surface (RS) 
method for approximating the limit-state function is implemented. The RS 
method is adopted since in structural problems the limit-state function 
cannot be explicitly expressed. 

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Brief Curriculum Vitae of 
Manolis Papadrakakis



Manolis Papadrakakis received his Civil Engineering Diploma from the National 
Technical University of Athens in 1971 and his M.Sc. (1975) in Structural 
Mechanics and Ph.D. (1978) in Computational Mechanics, both from the City 
University of London. He joined the Civil Engineering Faculty of the National 
Technical University of Athens (NTUA) in 1978 and he is now Professor of 
Structural Engineering at the School of Civil Engineering, NTUA. 

Research activity: He has made contributions in the following fields: 
Nonlinear dynamic analysis of concrete and steel structures under seismic 
loading. Solution of large-scale finite element problems with domain 
decomposition techniques on high-performance parallel and distributed 
computer environments. Large-scale structural design optimization of 
real-world structures. Solution of large non-linear problems and 
path-following strategies in solid and structural mechanics. Solution of 
large-scale eigenvalue problems. Contact-Impact problems. Stochastic finite 
element methods and reliability analysis. Adaptive strategies and solution 
techniques for p, h, hp finite element procedures. Neural network 
applications in structural engineering. Soil-fluid-structure interaction 
problems. 

Scientific activity: Editor of the International Journal of Computer Methods 
in Applied Mechanics and Engineering (CMAME). Honorary editor of the 
International Journal of Computational Methods (IJCM). President elect of 
ECCOMAS. President of the Greek Association for Computational Mechanics 
(GRACM) (2002-2006). Member of the editorial board of 15 international 
scientific journals. Corresponding member of the Executive Council, member of 
the General Council and Fellow of the International Association for 
Computational Mechanics (IACM). Chairman of the European Committee on 
Computational Solid and Structural Mechanics (ECCSM) of ECCOMAS (2004-2008). 
Recipient of the Computational Mechanics Award of IACM. Director of the 
Institute of Structural Analysis & Seismic Research, NTUA. Director of the 
Structural Engineering Department, School of Civil Engineering, NTUA 
(2001-2003). Director of the Post-graduate Studies of the Structural 
Engineering Department. President of the John Argyris Centre for 
Computational Methods in Engineering. Vice-President of the John Argyris 
Foundation. Reviewer in 45 international scientific journals. Member of the 
Advisory Board of Scopus data base of Elsevier. Conference chairman or 
co-chairman in 12 international conferences. Plenary lecturer or invited 
keynote lecturer in more than 40 international conferences. Member of the 
Scientific Committee of more than 100 international conferences. 


Teaching activity: Within the period of 30 years at NTUA, he has taught seven 
undergraduate courses and four postgraduate courses on the analysis of 
structures and computational mechanics. He has supervised 10 Ph.D., 30 M.Sc., 
130 Diploma theses and is currently supervising 12 doctoral students.

Publication activity: 7 edited books in English. 4 books in Greek. 18 
international conference proceedings volumes. 8 CD ROM international 
conference proceedings. 8 journal special issues. 21 chapters in books. 110 
papers in international refereed journals, 240 papers in international 
conference proceedings. 

A detailed CV can be found at:
http://users.civil.ntua.gr/papadrakakis