Papers by George Papazafeiropoulos
Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), 2016
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International Journal of Vehicle Performance, 2017
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Advances in Manufacturing, 2016
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SAE International Journal of Commercial Vehicles, 2016
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Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015), 2015
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Computational Methods in Applied Sciences, 2016
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Bulletin of Earthquake Engineering, 2016
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Proceedings of the 3rd South-East European Conference on Computational Mechanics – SEECCM III, 2013
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Http Dx Doi Org 10 1080 15732470903419677, 2009
Retaining structures characterised by high rigidity and various kinematic constraints, such as br... more Retaining structures characterised by high rigidity and various kinematic constraints, such as bridge abutments and basement walls, do not permit limit-equilibrium conditions to be developed. Therefore, according to contemporary norms and geotechnical design practice worldwide, they are most frequently designed utilising the elasticity-based methods, which usually lead to substantially increased dynamic earth pressures. The present paper aims to examine how
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Retaining walls are very frequently used in engineering practice to support, apart from soil laye... more Retaining walls are very frequently used in engineering practice to support, apart from soil layers, structures founded on the retained soil layers. During a seismic event it is evident that the dynamic response of each component of this complex system (i.e., wall, soil and structure) may affect substantially the response of the rest and vice versa. This phenomenon, which could be adequately described as "dynamic wall–soil–structure interaction" (DWSSI), is a rather complicated issue that combines: (a) the dynamic interaction between the wall and the retained soil layers, and (b) the "standard" dynamic interaction of a structure with its underlying soil layers. In the present study, using two-dimensional numerical simulations, the impact of the wall flexibility and structure stiffness on the dynamic response of the overall system is investigated. Emphasis is given on the relation between the dynamic behavior of the overall system and the dynamic properties of eac...
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Proceedings of the Ninth International Conference on Computational Structures Technology, 2008
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Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, 2009
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Computational Methods in Applied Sciences, 2010
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Structure and Infrastructure Engineering, 2011
Retaining structures characterised by high rigidity and various kinematic constraints, such as br... more Retaining structures characterised by high rigidity and various kinematic constraints, such as bridge abutments and basement walls, do not permit limit-equilibrium conditions to be developed. Therefore, according to contemporary norms and geotechnical design practice worldwide, they are most frequently designed utilising the elasticity-based methods, which usually lead to substantially increased dynamic earth pressures. The present paper aims to examine how
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Soil Dynamics and Earthquake Engineering, 2010
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A suitable piece of software is presented to connect Abaqus, a sophisticated finite element packa... more A suitable piece of software is presented to connect Abaqus, a sophisticated finite element package, with Matlab, the most comprehensive program for mathematical analysis. This interface between these well-known codes not only benefits from the image processing and the integrated graph-plotting features of Matlab but also opens up new opportunities in results post-processing, statistical analysis and mathematical optimization, among many other possibilities. The software architecture and usage are appropriately described and two problems of particular engineering significance are addressed to demonstrate its capabilities. Firstly, the software is employed to assess cleavage fracture through a novel 3-parameter Weibull probabilistic framework. Then, its potential to create and train neural networks is used to identify damage parameters through a hybrid experimental–numerical scheme, and model crack propagation in structural materials by means of a cohesive zone approach. The source code, detailed documentation and a large number of tutorials can be freely downloaded from www.abaqus2matlab.com .
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Papers by George Papazafeiropoulos