Search Results - "Polyzos, D"

Derivation of Mindlin’s first and second strain gradient elastic theory via simple lattice and continuum models by Polyzos, D., Fotiadis, D.I.

“…Mindlin, in his celebrated papers of Arch. Rat. Mech. Anal. 16, 51–78, 1964 and Int. J. Solids Struct. 1, 417–438, 1965, proposed two enhanced strain gradient…”
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Reply to “Discussion of “Derivation of Mindlin's first and second strain gradient elastic theory via simple lattice and continuum models” by Polyzos and Fotiadis” by Polyzos, D., Fotiadis, D.I.

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Wave dispersion in gradient elastic solids and structures: A unified treatment by Papargyri-Beskou, S., Polyzos, D., Beskos, D.E.

“…Analytical wave propagation studies in gradient elastic solids and structures are presented. These solids and structures involve an infinite space, a simple…”
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Multivariate Prediction of Subcutaneous Glucose Concentration in Type 1 Diabetes Patients Based on Support Vector Regression by Georga, E. I., Protopappas, V. C., Ardigo, Diego, Marina, M., Zavaroni, I., Polyzos, D., Fotiadis, D. I.

“…Data-driven techniques have recently drawn significant interest in the predictive modeling of subcutaneous (s.c.) glucose concentration in type 1 diabetes. In…”
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Torsional vibrations of a column of fine-grained material: A gradient elastic approach by Polyzos, D., Huber, G., Mylonakis, G., Triantafyllidis, T., Papargyri-Beskou, S., Beskos, D.E.

“…The gradient theory of elasticity with damping is successfully employed to explain the experimentally observed shift in resonance frequencies during forced…”
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Theoretical and experimental study of refractive index sensors based on etched fiber Bragg gratings by Tsigaridas, G., Polyzos, D., Ioannou, A., Fakis, M., Persephonis, P.

“…•The performance of etched FBGs as refractive index sensors is studied both theoretically and experimentally.•The etching process is modeled and analytic…”
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Characterization of surface crack depth and repair evaluation using Rayleigh waves by Aggelis, D.G., Shiotani, T., Polyzos, D.

“…The issues of surface crack depth determination and the evaluation of repair effectiveness are not trivial for concrete engineers. In the present paper,…”
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BEM evaluation of surface octahedral strains and internal strain gradients in 3D-printed scaffolds used for bone tissue regeneration by Gortsas, T.V., Tsinopoulos, S.V., Polyzos, E., Pyl, L., Fotiadis, D.I., Polyzos, D.

“…Most of the mechnoregulatory computational models appearing so far in tissue engineering for bone healing predictions, utilize as regulators for cell…”
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Numerical Model, Parametric Analysis, and Optimization of FCC's 16 T Main Dipole Baseline Design by Kokkinos, C., Farinon, S, Gortsas, T., Kokkinos, S., Loukas, K., Pampaloni, A., Polyzos, D., Rodopoulos, D.

“…CERN is currently investigating the feasibility of a future collider - the Future Circular Collider (FCC) - as a potential successor of the Large Hadron…”
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The 16 T Dipole Development Program for FCC and HE-LHC by Schoerling, Daniel, Arbelaez, Diego, Auchmann, Bernhard, Bajko, Marta, Ballarino, Amalia, Barzi, Emanuela, Bellomo, Giovanni, Benedikt, Michael, Izquierdo Bermudez, Susana, Bordini, Bernardo, Bottura, Luca, Brouwer, Lucas, Bruzzone, Pierluigi, Caiffi, Barbara, Caspi, Shlomo, Chakraborti, Ananda, Coatanea, Eric, de Rijk, Gijs, Dhalle, Marc, Durante, Maria, Fabbricatore, Pasquale, Farinon, Stefania, Felice, Helene, Fernandez, Alejandro, Sancho Fernandez, Inigo, Gao, Peng, Gold, Barbara, Gortsas, Thodoris, Gourlay, Steve, Juchno, Mariusz, Kashikhin, Vadim, Kokkinos, Charilaos, Kokkinos, Sotiris, Koskinen, Kari, Lackner, Friedrich, Lorin, Clement, Loukas, Konstantinos, Louzguiti, Alexandre, Lyytikainen, Kari, Mariotto, Samuele, Marchevsky, Maxim, Montenero, Giuseppe, Munilla, Javier, Novitski, Igor, Ogitsu, Toru, Pampaloni, A., Perez, J. C., Pes, C., Petrone, C., Polyzos, D., Prestemon, S., Prioli, M., Ricci, A. M., Rifflet, J. M., Rochepault, E., Russenschuck, S., Salmi, T., Santillana, I. A., Savary, F., Scheuerlein, C., Segreti, M., Senatore, C., Sorbi, M., Statera, M., Stenvall, A., Tavian, L., Tervoort, T., Tommasini, D., Toral, F., Valente, R., Velev, G., Verweij, A. P., Wessel, S., Wolf, F., Zimmermann, F., Zlobin, A. V.

“…A future circular collider (FCC) with a center-of-mass energy of 100 TeV and a circumference of around 100 km, or an energy upgrade of the LHC (HE-LHC) to 27…”
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An advanced boundary element method for solving 2D and 3D static problems in Mindlin's strain-gradient theory of elasticity by Karlis, G. F., Charalambopoulos, A., Polyzos, D.

“…An advanced boundary element method (BEM) for solving two‐ (2D) and three‐dimensional (3D) problems in materials with microstructural effects is presented. The…”
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Bending and stability analysis of gradient elastic beams by Papargyri-Beskou, S., Tsepoura, K.G., Polyzos, D., Beskos, D.E.

“…The problems of bending and stability of Bernoulli–Euler beams are solved analytically on the basis of a simple linear theory of gradient elasticity with…”
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The influence of propagation path on elastic waves as measured by acoustic emission parameters by Aggelis, DG, Shiotani, T, Papacharalampopoulos, A, Polyzos, D

“…Apart from the quantitative parameters of acoustic emission testing, such as the total activity or the location of the sources, much more information can be…”
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Boundary element analysis of mode I and mixed mode (I and II) crack problems of 2-D gradient elasticity by Karlis, G.F., Tsinopoulos, S.V., Polyzos, D., Beskos, D.E.

“…A boundary element method is developed for fracture analysis of gradient elastic planar solids under static loading. A simple version of Mindlin’s general…”
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Wave dispersion and attenuation in fresh mortar: theoretical predictions vs. experimental results by Aggelis, D.G., Polyzos, D., Philippidis, T.P.

“…In the present paper, the dispersive and attenuative behavior of fresh cementitious material is examined through a series of ultrasonic, through-transmission…”
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3D Frequency domain BEM for solving dipolar gradient elastic problems by Polyzos, D.

“…A three dimensional (3D) boundary element method (BEM) for treating time harmonic problems in linear elastic structures exhibiting microstructure effects is…”
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Vibration isolation by a row of piles using a 3-D frequency domain BEM by Kattis, S. E., Polyzos, D., Beskos, D. E.

“…The problem of vibration isolation by a row of piles is numerically solved in a three‐dimensional context by an advanced frequency domain boundary element…”
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Ensemble Gaussian Processes for Online Learning Over Graphs With Adaptivity and Scalability by Polyzos, Konstantinos D., Lu, Qin, Giannakis, Georgios B.

“…In the past decade, semi-supervised learning (SSL) over graphs has gained popularity due to its importance in a gamut of network science applications. While…”
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Surrogate modeling for Bayesian optimization beyond a single Gaussian process by Lu, Qin, Polyzos, Konstantinos D., Li, Bingcong, Giannakis, Georgios B.

“…Bayesian optimization (BO) has well-documented merits for optimizing black-box functions with an expensive evaluation cost. Such functions emerge in…”
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An iterative effective medium approximation (IEMA) for wave dispersion and attenuation predictions in particulate composites, suspensions and emulsions by AGGELIS, D. G, TSINOPOULOS, S. V, POLYZOS, D

“…In the present work we deal with the scattering dispersion and attenuation of elastic waves in different types of nonhomogeneous media. The iterative effective…”
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