Manolis Georgioudakis

Manolis Georgioudakis
National Technical University of Athens | NTUA · Department of Structural Engineering

Civil Engineer, Dipl Eng, MEng, PhD

About

29
Publications
3,795
Reads
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146
Citations
Introduction
Manolis Georgioudakis is Dr. Civil Engineer. He received his Ph.D. from the School of Civil Engineering of the National Technical University of Athens (NTUA) in 2014. His doctoral dissertation was awarded by the Greek Association of Computational Mechanics (GRACM) as the best PhD Thesis in 2014 in Computational Methods in Applied Sciences and Engineering. He also holds a Master's degree in Engineering from the School of Civil Engineering of the NTUA.
Additional affiliations
January 2014 - August 2015
National Technical University of Athens
Position
  • Senior Researcher
Description
  • Optimization and automation of the digital assembly process for the automotive industry. Funded by General Secretariat of Research and Technology (GSRT).
January 2013 - December 2018
National Technical University of Athens
Position
  • Senior Researcher
Description
  • MASTER - Mastering the computational challenges in numerical modeling and optimum design of CNT reinforced composites (ERC-2011-ADG 20110209). Funded by EU.
January 2006 - December 2008
National Technical University of Athens
Position
  • Researcher
Description
  • Optimum Design of Earthquake-resistant structures, in distributed supercomputer systems with arrays (Cluster / Grid), by minimizing the total cost (construction & repairing cost) in the project lifecycle. Funded by General Secretariat of Research and Technology (GSRT).
Education
July 2014 - July 2014
National Technical University of Athens
Field of study
  • Civil Engineering
October 2002 - April 2004
National Technical University of Athens
Field of study
  • Civil Engineering

Publications

Publications (29)
Article
Although large ground motion databases are widely available today, in many occasions, the selection of ground motion records still hampers the use of nonlinear response history analysis in seismic engineering practice. This paper presents a novel optimization-based tool for creating subsets of ground motion records extracted from large databases. E...
Article
Full-text available
Differential evolution (DE) is a population-based metaheuristic search algorithm that optimizes a problem by iteratively improving a candidate solution based on an evolutionary process. Such algorithms make few or no assumptions about the underlying optimization problem and can quickly explore very large design spaces. DE is arguably one of the mos...
Article
Full-text available
We propose a novel spectra-matching framework, which employs a linear combination of raw ground motion records to generate artificial acceleration time histories perfectly matching a target spectrum, taking into account not only the acceleration but also the seismic input energy equivalent velocity. This consideration is leading to optimum accelera...
Conference Paper
Full-text available
Structural damage identification is a scientific field that has attracted a lot of interest in the scientific community during the recent years. There have been many studies intending to find a reliable method to identify damage in structural elements both in location and extent. Most damage identification methods are based on the changes of dynamic char...
Article
The extended finite element method (XFEM) has been successfully implemented in solving crack propagation problems by enriching the polynomial basis functions of standard finite elements with specialized non-smooth functions. The resulting approximation space can be used to solve problems with moving discontinuities, such as cracks, without the need...
Conference Paper
Full-text available
Response spectrum analysis is a common tool in engineering practice to estimate the structural response of nondeterministic and transient dynamic events (e.g. earthquakes, shocks). Through model reduction techniques (eigenanalysis) the response of a structure is obtained in terms of forces and/or displacements as a combination of elementary vibrati...
Conference Paper
Full-text available
Nonlinear response history analysis (NRHA) is the most accurate seismic performance assessment method but it can be computationally intensive when it is applied to multi degree of freedom (DOF) structural systems. Machine learning techniques have gained increasing interest in engineering fields and can consist a powerful tool for reliable predictio...
Article
Full-text available
Constrained optimization is a highly important field of engineering as most real-world optimization problems are associated with one or several constraints. Such problems are often challenging to solve due to their complexity and high nonlinearity. Differential evolution (DE) is arguably one of the most versatile and stable population-based search...
Conference Paper
Full-text available
Constrained optimization is a highly important field of engineering as most real-world optimization problems are associated with one or several constraints. Such problems are often challenging to solve due to their complexity and high nonlinearity. Differential evolution (DE) is arguably one of the most versatile and stable population based search...
Conference Paper
Full-text available
Tuned mass dampers (TMDs) and bracing systems are two of the most common damping systems of structural vibration control which have been extensively used to reduce undesirable vibrations in structures. In this paper, the effectiveness of TMDs along with various diagonal bracing systems to control seismic vibration of two dimensional steel frames, i...
Conference Paper
Full-text available
The extended finite element method (XFEM) enriches the polynomial basis functions of standard finite elements with specialized non-smooth functions. The resulting approximation space can be used to solve problems with moving discontinuities, such as cracks, while avoiding the computational cost of remeshing. As the crack propagates, many artificial...
Conference Paper
Full-text available
The extended finite element method (XFEM) enriches the polynomial basis functions of standard finite elements with specialized non-smooth functions. The resulting approximation space can be used to solve problems with moving discontinuities, such as cracks, while avoiding the computational cost of remeshing. Although the local enrichment strategy o...
Article
Full-text available
Structural damage identification is a scientific field that has attracted a lot of interest in the scientific community during the recent years. There have been many studies intending to find a reliable method to identify damage in structural elements both in location and extent. Most damage identification methods are based on the changes of dynami...
Article
Full-text available
Although large ground motion databases are today widely available, the selection of records still hampers the use of nonlinear response history analysis in engineering practice. We propose a method that is based on a novel optimization algorithm in order to create subset of records chosen from a large database. Existing heuristic methods select and...
Conference Paper
Full-text available
While large databases of strong ground motion records are today widely available, the selection and scaling of ground motion records hampers the use of nonlinear response history analysis for the seismic design and assessment of structures. Past research is primarily focused on the use of heuristic methods for obtaining records whose mean spectrum...
Conference Paper
Full-text available
In this paper, the sequentially linear analysis (SLA) approach is implemented in the framework of a stochastic setting to investigate the effect of uncertain spatially varying material properties (Young's modulus, tensile strength, fracture energy) on the fracture behavior of structures with softening materials. SLA replaces the incremental nonline...
Conference Paper
Full-text available
Structural damage identification has drawn increasing academic interest, as witnessed by the number of relevant journal and conference papers, during the recent years. The necessity of detecting and repairing structural damage at its early stage has become imperative and considerable effort has been devoted to developing non-destructive testing and...
Chapter
Full-text available
Fatigue has been played a key role into the design process of structures, since many failures of them are attributed to repeated loading and unloading conditions. Crack growth due to fatigue, represents a critical issue for the integrity and resistance of structures and several numerical methods mainly based on fracture mechanics have been proposed...
Conference Paper
Full-text available
In this paper, the effect of uncertain spatially varying material properties on the fracture behavior of structures with softening materials is investigated. Structural failure is modeled using the sequentially linear analysis (SLA) proposed by Rots (2001), which replaces the incremental nonlinear FE analysis by a series of scaled linear analyses a...
Conference Paper
Full-text available
Repeated loading and unloading of structures due to fatigue, has been of major concern in the design of them, since most of the failures are fatigue related. When this process occurs, the shape of the structure plays an important role which affects the fatigue life of the structure. Thus, square holes and sharp corners or even initial imperfections...
Chapter
Full-text available
This paper investigates the influence of uncertain spatially varying material properties on the fracture behavior of structures with softening materials. Structural failure is modeled using the sequentially linear analysis (SLA) proposed by Rots (Sequentially linear continuum model for concrete fracture. In: de Borst R, Mazars J, Pijaudier-Cabot G,...
Conference Paper
Full-text available
In this paper, the influence of uncertain spatially varying material properties on the fracture behavior of structures made of softening materials is examined. Structural failure is modeled using the sequentially linear procedure proposed by Rots (2001), which replaces the incremental (nonlinear) finite element (FE) analysis by a series of scaled l...
Conference Paper
Full-text available
This paper investigates the influence of uncertain spatially varying material properties on the fracture behavior of structures made of softening materials. To model the structural failure, the sequentially linear solution procedure proposed by Rots (2001) is used, which replaces the incremental (nonlinear) finite element analysis by a series of sc...
Conference Paper
Full-text available
Almost every real world problem involves simultaneous optimization of several incommensurable and often competing objectives which constitutes a multi-objective optimization problem. In multi-objective optimization problems the optimal solution is not unique as in single-objective optimization problems. In this paper, a multi-objective shape design...
Conference Paper
Full-text available
This paper investigates the influence of uncertain spatially varying material properties on the fracture behavior of structures made of softening materials. To model the structural failure, the sequentially linear solution procedure proposed by Rots (2001) is used, which replaces the incremental (nonlinear) finite element analysis by a series of sc...
Conference Paper
Full-text available
Almost every real world problem involves simultaneous optimization of several incommensurable and often competing objectives which constitutes a multi-objective optimization problem. In multi-objective optimization problems the optimal solution is not unique as in single-objective optimization problems. In this paper, a multi-objective shape design...
Technical Report
Full-text available
In the present report, a full reliability analysis of a plain concrete beam is presented. For this application, a collaboration between NTUA (WP5/TG2) and IBFT (WP2/TG2) was estamblished in order to integrate the damage models for concrete developed in WP2/TG2 into a general framework of a probabilistic treatment of uncertainties involved in materi...

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