The Experts below are selected from a list of 1416 Experts worldwide ranked by ideXlab platform
Giuseppe Ruta - One of the best experts on this subject based on the ideXlab platform.
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On the complementary energy in elasticity and its history: the Italian school of nineteenth century
Meccanica, 2017Co-Authors: Danilo Capecchi, Antonino Favata, Giuseppe RutaAbstract:In the formulation of mechanical theories, physicists usually neglect complementary energy, while rational mechanicians and engineers widely use it, especially in continuum physics and structural mechanics. Indeed, in many cases the solutions of elastic problems are found in a simpler way by resorting to complementary, rather than potential, energy. Moseley and Cotterill in England, Menabrea and Castigliano in Italy were among the first to introduce complementary energy in their papers, though implicitly; a more explicit formulation is in Crotti’s papers; and Engesser extended it to non-linear elasticity. In this work we run through the history of complementary energy and search for its possible mechanical meaning.
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Solving Statically Indeterminate Systems
Advanced Structured Materials, 2014Co-Authors: Danilo Capecchi, Giuseppe RutaAbstract:The most important event for the history of structural engineering in Italy in the second half of the 1800s was the approval of the law decree of 1859 of the Kingdom of Sardinia, known after its promoter Gabrio Casati, which took force from 1860 in the kingdom and was then extended to all Italy. This decree reformed the whole education system and established the schools for engineering. Among these schools, the most important one, at least at the beginning, was that in Turin. The key person of this school was Giovanni Curioni, heir of Menabrea, who had taught structural mechanics to the pupils of engineering schools before Casati’s reformation. Curioni inherited Menabrea’s researches on the way to solve redundant structures and supervised the graduation thesis that Alberto Castigliano and Valentino Cerruti presented in Turin in 1873, where the former extended Menabrea’s technique and the latter explored more traditional approaches to solve redundant trusses. In this chapter we focus on the contributions by Menabrea, Castigliano and Cerruti, trying to highlight strengths and weaknesses, and showing their connections.
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i teoremi di minimo di menabrea e Castigliano
2011Co-Authors: Danilo Capecchi, Giuseppe RutaAbstract:L’evento piu importante per la storia dell’ingegneria strutturale italiana nella seconda meta dell’Ottocento e il varo del decreto legislativo 13 novembre 1859 n. 3725 del Regno di Sardegna, meglio noto come legge Casati, in vigore dal 1860 nel regno sabaudo e poi esteso a tutta Italia, che riformo l’intero ordinamento scolastico e istitui le Scuole di applicazione per ingegneri. Tra le varie scuole la piu importante per la meccanica delle strutture, almeno all’inizio, fu quella diTorino. Il personaggio chiave di questa scuola fu Giovanni Curioni, erede di Luigi Federico Menabrea che aveva insegnato la meccanica delle strutture agli allievi ingegneri prima della riforma Casati. Curioni fece proprie le ricerche diMenabrea sul modo di risolvere le strutture ridondanti e fu relatore della tesi di laurea cheAlberto Castigliano presento a Torino nel 1873, dove la tecnica diMenabrea per risolvere i tralicci iperstatici veniva estesa anche alle membrature inflesse. In questo capitolo concentriamo l’attenzione sui contributi di Menabrea e Castigliano cercando di metterne in luce pregi e difetti e mostrandone le connessioni.
Danilo Capecchi - One of the best experts on this subject based on the ideXlab platform.
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On the complementary energy in elasticity and its history: the Italian school of nineteenth century
Meccanica, 2017Co-Authors: Danilo Capecchi, Antonino Favata, Giuseppe RutaAbstract:In the formulation of mechanical theories, physicists usually neglect complementary energy, while rational mechanicians and engineers widely use it, especially in continuum physics and structural mechanics. Indeed, in many cases the solutions of elastic problems are found in a simpler way by resorting to complementary, rather than potential, energy. Moseley and Cotterill in England, Menabrea and Castigliano in Italy were among the first to introduce complementary energy in their papers, though implicitly; a more explicit formulation is in Crotti’s papers; and Engesser extended it to non-linear elasticity. In this work we run through the history of complementary energy and search for its possible mechanical meaning.
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Solving Statically Indeterminate Systems
Advanced Structured Materials, 2014Co-Authors: Danilo Capecchi, Giuseppe RutaAbstract:The most important event for the history of structural engineering in Italy in the second half of the 1800s was the approval of the law decree of 1859 of the Kingdom of Sardinia, known after its promoter Gabrio Casati, which took force from 1860 in the kingdom and was then extended to all Italy. This decree reformed the whole education system and established the schools for engineering. Among these schools, the most important one, at least at the beginning, was that in Turin. The key person of this school was Giovanni Curioni, heir of Menabrea, who had taught structural mechanics to the pupils of engineering schools before Casati’s reformation. Curioni inherited Menabrea’s researches on the way to solve redundant structures and supervised the graduation thesis that Alberto Castigliano and Valentino Cerruti presented in Turin in 1873, where the former extended Menabrea’s technique and the latter explored more traditional approaches to solve redundant trusses. In this chapter we focus on the contributions by Menabrea, Castigliano and Cerruti, trying to highlight strengths and weaknesses, and showing their connections.
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i teoremi di minimo di menabrea e Castigliano
2011Co-Authors: Danilo Capecchi, Giuseppe RutaAbstract:L’evento piu importante per la storia dell’ingegneria strutturale italiana nella seconda meta dell’Ottocento e il varo del decreto legislativo 13 novembre 1859 n. 3725 del Regno di Sardegna, meglio noto come legge Casati, in vigore dal 1860 nel regno sabaudo e poi esteso a tutta Italia, che riformo l’intero ordinamento scolastico e istitui le Scuole di applicazione per ingegneri. Tra le varie scuole la piu importante per la meccanica delle strutture, almeno all’inizio, fu quella diTorino. Il personaggio chiave di questa scuola fu Giovanni Curioni, erede di Luigi Federico Menabrea che aveva insegnato la meccanica delle strutture agli allievi ingegneri prima della riforma Casati. Curioni fece proprie le ricerche diMenabrea sul modo di risolvere le strutture ridondanti e fu relatore della tesi di laurea cheAlberto Castigliano presento a Torino nel 1873, dove la tecnica diMenabrea per risolvere i tralicci iperstatici veniva estesa anche alle membrature inflesse. In questo capitolo concentriamo l’attenzione sui contributi di Menabrea e Castigliano cercando di metterne in luce pregi e difetti e mostrandone le connessioni.
Marco Federici - One of the best experts on this subject based on the ideXlab platform.
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Sulla traduzione castigliana di “Muoviti, Amore, e vattene a Messere” (Decameron, X, 7)
2016Co-Authors: Marco FedericiAbstract:L’articolo analizza la traduzione dell’unica ballata del Decameron\ud che appare nelle edizioni castigliane a partire dal XV secolo. Considerando la\ud struttura peculiare della canzonetta di Mico da Siena, il confronto con la\ud traduzione tenta di interpretare il modus operandi dell’anonimo Castigliano. Si\ud usano la prima edizione rinascimentale de Las cient novelas – che deriva dalla\ud princeps sivigliana del 1496 – confrontata con la ristampa di Valladolid del\ud 1539. Il testo italiano è quello edito dal Branca (1976). Si esaminano i lessemi\ud scelti dal traduttore in relazione alla metrica, al lessico stilnovista e alla\ud tradizione lirica spagnola. Si individuano inoltre dei probabili errori di stampa\ud e varianti pertinenti nei manoscritti italiani, e si forniscono eventuali soluzioni\ud traduttive quando i versi si discostano dall’originale
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Sulla traduzione castigliana di «Muoviti, Amore, e vattene a Messere» («Decameron», X:7)
Università degli Studi di Milano, 2016Co-Authors: Marco FedericiAbstract:L’articolo analizza la traduzione dell’unica ballata del Decameron che appare nelle edizioni castigliane a partire dal XV secolo. Considerando la struttura peculiare della canzonetta di Mico da Siena, il confronto con la traduzione tenta di interpretare il modus operandi dell’anonimo Castigliano. Si usano la prima edizione rinascimentale de Las cient novelas – che deriva dalla princeps sivigliana del 1496 – confrontata con la ristampa di Valladolid del 1539. Il testo italiano è quello edito dal Branca (1976). Si esaminano i lessemi scelti dal traduttore in relazione alla metrica, al lessico stilnovista e alla tradizione lirica spagnola. Si individuano inoltre dei probabili errori di stampa e varianti pertinenti nei manoscritti italiani, e si forniscono eventuali soluzioni traduttive quando i versi si discostano dall’originale. The essay analizes the translation of the only ballad of the Decameron that appears in its Spanish editions from the 15th Century. Considering the particular structure of Mico da Siena ballad, the comparison with his translation tries to interpretate the anonymus Castilian’s modus operandi. We use the Las cient novelas first Reinassance edition – which comes from the Sevillan princeps in 1496 – compared to the edition reprinted in Valladolid in 1539. The Italian text comes from Branca’s edition (1976). We examinate the lexemes that the translator choose in relation to metrics, to Dolce Stilnovo’s lexicon and to the hispanic lyric tradition. We identify some possible print mistakes and relevant variations in some Italian manuscripts, and we offer alternative translating solutions when verses are different from the original
A G Kolpakov - One of the best experts on this subject based on the ideXlab platform.
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variational principles for stiffnesses of a non homogeneous plate
Journal of The Mechanics and Physics of Solids, 1999Co-Authors: A G KolpakovAbstract:Abstract Lagrange- and Castigliano-type variational principles for a non-homogeneous plate of periodic structure are derived on the basis of the homogenization method. The obtained principles provide, in particular, Voigt–Reuss-like bounds for the stiffnesses.
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Variational principles for stiffnesses of a non-homogeneous beam
Journal of the Mechanics and Physics of Solids, 1998Co-Authors: A G KolpakovAbstract:General variational principles and two-sided estimates for a nonhomogeneous beam of periodic structure are derived on the basis of the asymptotic method and analysis of Lagrange and Castigliano functionals for the so-called cell problem. The nonhomogeneity of the beam can be a result of nonhomogeneity of the material the beam is made of (which is also possible for monolithic bodies), and nonhomogeneity of the beam geometry (this case is impossible for monolithic bodies). The present consideration covers both these cases.
Hložek Jiří - One of the best experts on this subject based on the ideXlab platform.
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Stress-strain analysis of chosen climbing rung
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017Co-Authors: Hložek JiříAbstract:This bachelor thesis deals with a stress-strain analysis of chosen climbing rung. The thesis is divided into four main parts. The first part of the thesis reviews three-dimensional frames (grates) and their possible solution. The second part includes analytical solution of chosen, idealized climbing rung by using Castigliano´s theorem. The third part includes numerical solution by using finite element method performed in ANSYS software. Finally, the last part summarizes results which are also thoroughly discussed
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Stress-strain analysis of chosen climbing rung
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017Co-Authors: Hložek JiříAbstract:Tato bakalářská práce se zabývá deformačně napěťovou analýzou vybrané lezecké příčky. Práce je rozdělena do čtyř hlavních částí. První část této práce popisuje prostorové rámy (rošty) a možnosti jejich řešení. Druhá část zahrnuje analytické řešení vybrané, idealizované příčky užitím Castiglianovy věty. Třetí část obsahuje numerické řešení pomocí metody konečných prvků v programu ANSYS. V poslední části jsou zhodnoceny výsledky, které jsou důkladně prodiskutovány.This bachelor thesis deals with a stress-strain analysis of chosen climbing rung. The thesis is divided into four main parts. The first part of the thesis reviews three-dimensional frames (grates) and their possible solution. The second part includes analytical solution of chosen, idealized climbing rung by using Castigliano´s theorem. The third part includes numerical solution by using finite element method performed in ANSYS software. Finally, the last part summarizes results which are also thoroughly discussed.