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The advent of additive manufacturing (AM) processes applied to the fabrication of structural components creates the need for design methodologies supporting structural optimization approaches that take into account the specific characteristics of the process. While AM processes enable unprecedented geometrical design freedom, which can result in significant reductions of component weight, on the other hand they have implications in the fatigue and fracture strength due to residual stresses and microstructural features. This is linked to stress concentration effects and anisotropy that still warrant further research. This Special Issue of Applied Sciences brings together papers investigating the features of AM processes relevant to the mechanical behavior of AM structural components, particularly, but not exclusively, from the viewpoints of fatigue and fracture behavior. Although the focus of the issue is on AM problems related to fatigue and fracture, articles dealing with other manufacturing processes with related problems are also be included.
Composites materials have aroused a great interest over the last few decades. Several applications of fibrous composites, functionally graded materials, laminated composites, nano-structured reinforcements, morphing structures, can be found in many engineering fields, such as aerospace, mechanical, naval and civil engineering. The necessity of lightweight structures, smart and adaptive systems, high-level strength, have led both the academic research and the manufacturing development to a recurring employment of these materials. Many journal papers and technical notes have been published extensively over the last seventy years in international scientific journals of different engineering fie...
He died as a child, decades before his time, and spent the next 30 years in Hell thanks to a mix-up in the afterlife’s bureaucracy. Then a miracle occurred, and the Kid escaped perdition for Earth. His mission: become the new Messiah. His gift: the ability to summon any human, god or devil who ever existed—or who anyone once believed existed—with the cry of a single word… “ETERNITY!” Redeeming humanity, however, is trickier than it seems. From America’s forgotten highways to the endless realms of cyberspace, from the clamor of TV talk shows to the chaos of insane asylums, from the siren song of sex to the menace of mad gods, a whole host of forces—good, bad and ugly—have un...
The use of composite materials has grown exponentially in the last decades and has affected many engineering fields due to their enhanced mechanical properties and improved features with respect to conventional materials. For instance, they are employed in civil engineering (seismic isolators, long-span bridges, vaults), mechanical engineering (turbines, machine components), aerospace and naval engineering (fuselages, boat hulls and sails), automotive engineering (car bodies, tires), and biomechanical engineering (prostheses).Nevertheless, the greater use of composites requires a rapid progress in gaining the needed knowledge to design and manufacture composite structures. Thus, researchers ...
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Lilith, madre di tutti i demoni, è stata distrutta. Ma quando gli Shadowhunters arrivano a liberare Jace, che lei teneva prigioniero, trovano soltanto sangue e vetri fracassati. E non è scomparso solo il ragazzo che Clary ama, ma anche quello che odia, suo fratello Sebastian, il figlio di Valentine. Un figlio determinato a riuscire dove il padre ha fallito e pronto a tutto per annientare gli Shadowhunters.
Spirito assorto in rapimento estatico, Che frequentando il ciel, tua patria vera, Lasciasti il corpo, tuo soggiorno e viatico, Che tanto a' tuoi voleri s'ammaniera In questa nostra vita passeggera, Tu, senza sensi, né passion molesta, Oh non vorresti ritornare in questa Terra, dal tuo celestiale ostello, E il terzo libro delle allegre gesta Veder quaggiù, del buon Pantagruello?
Introduzione di Emanuele Trevi Edizione integrale Gargantua e Pantagruele, uno dei grandi classici che, come il Don Chisciotte di Cervantes, fondarono il romanzo moderno, è composto da cinque volumi scritti da François Rabelais nella prima metà del 1500. L’opera racconta le avventure di due giganti, Gargantua e suo figlio Pantagruele, con un linguaggio semplice e vivace, uno stile stravagante e satirico e un umorismo che fa perno soprattutto sul corpo e sulle sue funzioni. Il primo libro, Pantagruele, venne pubblicato e acclamato nel 1532. In seguito al successo dell’opera, l'autore firmò un secondo romanzo, nel 1534, dal titolo Gargantua. I tre libri che seguirono raccontano i viagg...