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Your search keyword '"Berto, F."' showing total 13 results
Start Over Author "Berto, F." Publication Type Conference Materials
13 results on '"Berto, F."'

1. ANAtOLIA : a mobile station for site availability characterization for optical communications links

Author

Ziad, A., primary, Giordano, C., additional, Aresta, A., additional, Aristidi, E., additional, Bailet, C., additional, Berto, F., additional, Bertolin, C., additional, Carbillet, M., additional, Cavazzani, S., additional, Ceus, D., additional, Charbonnel, T., additional, Delanoe, J., additional, Descloitres, J., additional, Fantei-Caujolle, Y., additional, Gillioen, A., additional, Gonzalez-Ramos, Y., additional, Irbah, A., additional, Jacqmart, E., additional, Le Kernec, A., additional, Liandrat, O., additional, Poulenard, S., additional, Riedi, J., additional, Schmutz, N., additional, Vedani, D., additional, and Victori, S., additional

Published
2023
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10. Material Fragmentation as Dissipative Process of Micro Rotation Sequence Formation: Hybrid Model of Excitable Cellular Automata.

Author

Moiseenko, D. D., Panin, V. E., Maksimov, P. V., Panin, S. V., and Berto, F.

Subjects
CELLULAR automata, MOLECULAR structure of nanostructured materials, ROTATIONAL motion, ELASTICITY, TORSION, POLYCRYSTALS, NANOSTRUCTURED materials testing, FRAGMENTATION reactions, MATHEMATICAL models
Abstract

The authors have developed a multi-level model of energy propagation along interfaces between the various structural elements of a solid with taking into account mutual energy transformations of various kinds. They have also designed a computer simulation tool based on the excitable cellular automaton (ECA) method. An algorithm for calculating the local moments of forces has been developed for the case of material rotation and torsion. The relationship for the accumulated elastic energy is supplemented with a dissipation term. Numerical experiments have been carried out on high-energy impact on polycrystalline copper specimens with different grain sizes. The paper shows that during the nanostructuring of material surface layer, the dissipation of elastic energy gives rise to the rotation of structural elements. This makes it possible to prevent the occurrence of stress concentrators with peak values typical of coarse-grained specimens and reducing their mechanical properties. [ABSTRACT FROM AUTHOR]

Published
2014
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12. Three-dimensional Stress Analysis of a Plate Weakened by an Inclined Diamond Hole Under Various Loading Conditions.

Author

Afshar, R., Berto, F., and Lazzarin, P.

Subjects
STRAINS & stresses (Mechanics), HARMONIC analysis (Mathematics), DIFFERENTIAL equations, FINITE element method, FRACTURE mechanics, DIAMONDS, STRUCTURAL plates, MECHANICAL loads
Abstract

Three-dimensional(3D)elastic stress distributions in the vicinity of the sharp corners of an inclined diamond hole in a plate are investigated. A detailed 3D finite element model under different loading conditions is analyzed to study the intensity of different fracture modes due to the thickness effect. The stress results are compared with those provided by a recent theory which reduces the 3D governing equations of elasticity to a differential equation system, which includes a bi-harmonic equation and a harmonic equation. They provide the solution of the corresponding in-plane and out-of-plane notch problem, respectively, and have to be concurrently satisfied. Comparing numerical results and theoretical stress distributions, a good agreement is found. [ABSTRACT FROM AUTHOR]

Published
2013

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