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1. |
Record Nr. |
UNISA996199794703316 |
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Autore |
Pierre Mounier (dir.) |
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Titolo |
Read/write book 2 une introduction aux humanités numériques / / Pierre Mounier, dir |
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Pubbl/distr/stampa |
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OpenEdition Press, 2012 |
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Marseille, France : , : OpenEdition Press, , 2012 |
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©2012 |
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ISBN |
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9782821813250 (PDF) |
9782821813298 (paperback) |
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Descrizione fisica |
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1 online resource (264 pages) |
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Disciplina |
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Soggetti |
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Electronic books |
Bibliography |
Electronic publishing |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Sommario/riassunto |
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Qu'est-ce que les humanités numériques? Apparue en 2006, l'expression connaît depuis un véritable succès. Mais au-delà du slogan à la mode, quelle est la réalité des pratiques qu'il désigne? Si tout le monde s'accorde sur une définition minimale à l'intersection des technologies numériques et des sciences humaines et sociales, les vues divergent lorsqu'on entre dans le vif du sujet. Les humanités numériques représentent-elles une véritable révolution des pratiques de recherche et des paradigmes intellectuels qui les fondent ou, plus simplement, une optimisation des méthodes existantes? Constituent-elles un champ suffisamment structuré pour justifier une réforme des modes de financement de la recherche, des cursus de formation, des critères d'évaluation? L'archive numérique offre-t-elle à la recherche suffisamment de garanties? Quelle place la recherche ± dirigée par les données? laisse-t-elle à l'interprétation? Telles sont quelques-unes des questions abordées par ce deuxième opus de la collection ± Read/Write Book?. Ces dix-huit textes essentiels, rédigés ou traduits en français par des chercheurs de différentes nationalités, proposent une |
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introduction aux humanités numériques accessible à tous ceux qui souhaitent en savoir plus sur ce domaine de recherche en constante évolution |
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2. |
Record Nr. |
UNINA9910437762903321 |
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Autore |
Tejchman Jacek |
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Titolo |
Continuous and discontinuous modelling of fracture in concrete using FEM / / Jacek Tejchman and Jerzy Bobiski |
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Pubbl/distr/stampa |
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Berlin ; ; New York, : Springer, 2012, c2013 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (416 p.) |
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Collana |
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Springer series in geomechanics and geoengineering, , 1866-8763 |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Concrete construction - Mathematical models |
Structural analysis (Engineering) - Mathematical models |
Finite element method |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Introduction -- General -- Literature Overview -- Theoretical Models -- Discrete Lattice Model -- Epilogue. |
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Sommario/riassunto |
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The book analyzes a quasi-static fracture process in concrete and reinforced concrete by means of constitutive models formulated within continuum mechanics. A continuous and discontinuous modelling approach was used. Using a continuous approach, numerical analyses were performed using a finite element method and three different enhanced continuum models: isotropic elasto-plastic, isotropic damage and anisotropic smeared crack one. The models were equipped with a characteristic length of micro-structure by means of a non-local and a second-gradient theory. So they could properly describe the formation of localized zones with a certain thickness and spacing and a related deterministic size effect. Using a discontinuous FE approach, numerical results of cracks using a cohesive crack model and XFEM were presented which were also properly regularized. Finite element analyses were performed with concrete elements under monotonic uniaxial compression, uniaxial tension, bending and shear-extension. |
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Concrete beams under cyclic loading were also simulated using a coupled elasto-plastic-damage approach. Numerical simulations were performed at macro- and meso-level of concrete. A stochastic and deterministic size effect was carefully investigated. In the case of reinforced concrete specimens, FE calculations were carried out with bars, slender and short beams, columns, corbels and tanks. Tensile and shear failure mechanisms were studied. Numerical results were compared with results from corresponding own and known in the scientific literature laboratory and full-scale tests. . |
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