Parcourir par auteur "Papadioti, D. C."
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Bayesian uncertainty quantification and propagation in nonlinear structural dynamics
Giagopoulos, D.; Papadioti, D. C.; Papadimitriou, C.; Natsiavas, S. (2013)A Bayesian uncertainty quantification and propagation (UQ&P) framework is presented for identifying nonlinear models of dynamic systems using vibration measurements of their components. The measurements are taken to be ... -
Bayesian uncertainty quantification and propagation in nonlinear structural dynamics
Giagopoulos, D.; Papadioti, D. C.; Papadimitriou, C.; Natsiavas, S. (2009)Nonlinear modelling and parametric identification of an experimental vehicle model, are employed in this paper. The composite structure of the vehicle model is split into a frame substructure and to four support substructures. ... -
Component mode synthesis techniques for finite element model updating
Papadimitriou, C.; Papadioti, D. C. (2013)Deterministic and Bayesian finite element (FE) model updating techniques are computationally very demanding operations due to the large number of FE model re-analyses required. Component mode synthesis techniques are ... -
Efficient techniques for bayesian inverse modeling of large-order computational models
Papadimitriou, C.; Angelikopoulos, P.; Koumoutsakos, P.; Papadioti, D. C. (2013)Bayesian tools for inverse modeling are based on asymptotic approximations and Stochastic Simulation Algorithms (SSA). Such tools require a number of moderate to large number of system re-analyses. For large-order numerical ... -
Fast Bayesian structural damage localization and quantification using high fidelity FE models and CMS techniques
Papadioti, D. C.; Papadimitriou, C. (2012)Bayesian estimators are proposed for damage identification (localization and quantification) of civil infrastructure using vibration measurements. The actual damage occurring in the structure is predicted by Bayesian model ... -
Fast Bayesian updating of large-scale finite element models using CMS technique and surrogate models
Papadimitriou, C.; Papadioti, D. C. (2012)A Bayesian probabilistic framework for parameter estimation is applied for updating large-order finite element models of structures using response measurements. Fast and accurate component mode synthesis (CMS) techniques ... -
A fast CMS technique for computational efficient system re-analyses in structural dynamics
Papadioti, D. C.; Papadimitriou, C. (2009)Sensitivity analyses, model calibration techniques, uncertainty quantification methods, reliability computations and design optimization methods require a moderate to large number of system re-analyses to be performed for ... -
A fast CMS technique for computational efficient system re-analyses in structural dynamics
Papadioti, D. C.; Papadimitriou, C. (2013)Sensitivity analyses, model calibration techniques, uncertainty quantification methods, reliability computations and design optimization methods require a moderate to large number of system re-analyses to be performed for ... -
Fast computing techniques for Bayesian uncertainty quantification in structural dynamics
Papadimitriou, C.; Papadioti, D. C. (2013)A Bayesian probabilistic framework for uncertainty quantification and propagation in structural dynamics is reviewed. Fast computing techniques are integrated with the Bayesian framework to efficiently handle large-order ... -
Finite element model validation and predictions using dynamic reduction techniques
Papadioti, D. C.; Papadimitriou, C. (2011)Finite element (FE) model updating and validation techniques are formulated as single and multi-objective optimization problems. A multi-objective optimization framework results in multiple Pareto optimal models that are ... -
Health monitoring of Metsovo bridge using ambient vibrations
Panetsos, P.; Ntotsios, E.; Papadimitriou, C.; Papadioti, D. C.; Dakoulas, P. (2010)A real-time online structural health monitoring system for the Metsovo bridge, the highest R/C bridge of the Egnatia Odos Motorway in Greece, is outlined and then used to develop high fidelity dynamic finite element models ... -
Seismic and vibration tests for assessing the effectiveness of GFRP for retrofitting masonry structures
Michelis, P.; Papadimitriou, C.; Karaiskos, G. K.; Papadioti, D. C.; Fuggini, C. (2012)Full-scale shake table seismic experiments and low-amplitude vibration tests on a masonry building are carried out to assess its seismic performance as well as study the effectiveness of a new multifunctional textile ... -
Structural damage identification using a Bayesian model selection framework
Papadimitriou, C.; Papadioti, D. C.; Ntotsios, E. (2010)A Bayesian model class selection and updating framework is used for identifying the location and size of damage in a structure utilizing measured dynamic data. The framework consists of a two-level approach. At the first ... -
Uncertainty calibration of large-order models of bridges using ambient vibration measurements
Papadimitriou, C.; Argyris, C.; Papadioti, D. C.; Panetsos, P. (2014)A computational efficient Bayesian inference framework based on stochastic simulation algorithms is presented for calibrating the parameters of large-order linear finite element (FE) models of bridges. The effectiveness ...