Khalfallah ali (43 resultados)

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Hardback or Cased Book. Condición: New. Welding and Joining of Metallic Materials: Microstructure and Mechanical Properties. Book.

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Taschenbuch. Condición: Neu. Identification de lois de comportement élastoplastiques anisotropes | Application à la simulation numérique par la méthode des éléments finis du procédé d'emboutissage des tôles métalliques | Ali Khalfallah | Taschenbuch | 144 S. | Französisch | 2011 | Éditions universitaires européennes | EAN 9783841782861 | Verantwortliche Person für die EU: OmniScriptum GmbH & Co. KG, Bahnhofstr. 28, 66111 Saarbrücken, info[at]akademikerverlag[dot]de | Anbieter: preigu.…

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Hardcover. Condición: new. Hardcover. This Special Issue, "Welding and Joining of Metallic Materials: Microstructure and Mechanical Properties, 2nd Edition," presents a collection of ten high-impact research articles that advance the frontiers of metallurgical joining technologies. The volume addresses a critical engineering challenge: the optimization of the interface between complex microstructural evolution and the resulting mechanical performance of welded joints. This Reprint is organized into three strategic domains. First, it explores innovations in arc welding through the development of activating fluxes and nanostructured functional ceramic coatings for electrodes, significantly enhancing penetration depth and arc stability. Second, it highlights the integration of computational intelligence, using methods such as Particle Swarm Optimization (PSO) and Response Surface Methodology (RSM) to predict and refine weld geometries. Finally, this collection investigates specialized dynamics in solid-state joining and high-energy density processes, including Friction Stir Spot Welding and Variable Polarity Plasma Arc dynamics. By bridging the gap between theoretical modeling and robust experimental validation, this collection provides actionable insights for the automotive, aerospace, and energy sectors. It serves as an essential reference for engineers and researchers seeking to enhance the structural integrity, efficiency, and longevity of metallic components in rigorous industrial environments. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

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Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Ce livre est dédié à l'identification des paramètres de lois de comportement élastoplastiques anisotropes en vue de leur utilisation pour la simulation numérique du procédé d'emboutissage de tôles métalliques. Les stratégies d'identification inverse sont basées sur les réponses d'essais expérimentaux inhomogènes et sur le couplage d'une méthode d'optimisation et de la simulation numérique par éléments finis pour coïncider la réponse calculée par le modèle de comportement et la réponse expérimentale correspondante. Les paramètres identifiés sont les coefficients d'anisotropie et les paramètres d'écrouissage pour différentes lois de comportement. Dans ces modèles élastoplastiques anisotropes, l'écrouissage est isotrope et les potentiels plastiques associé et non associé sont considérés. Dans cette identification, les essais de traction simple hors-axes et l'essai de traction plane inhomogène sont utilisés. Une Technique spécifique d'analyse de sensibilité paramétrique est developpée pour analyser l'influence de la variation des paramètres de comportement identifiés sur la réponse des essais. Cette technique est mise en oeuvre sur des exemples pratique. 144 pp. Französisch.…

Hardcover. Condición: new. Hardcover. This Special Issue, "Welding and Joining of Metallic Materials: Microstructure and Mechanical Properties, 2nd Edition," presents a collection of ten high-impact research articles that advance the frontiers of metallurgical joining technologies. The volume addresses a critical engineering challenge: the optimization of the interface between complex microstructural evolution and the resulting mechanical performance of welded joints. This Reprint is organized into three strategic domains. First, it explores innovations in arc welding through the development of activating fluxes and nanostructured functional ceramic coatings for electrodes, significantly enhancing penetration depth and arc stability. Second, it highlights the integration of computational intelligence, using methods such as Particle Swarm Optimization (PSO) and Response Surface Methodology (RSM) to predict and refine weld geometries. Finally, this collection investigates specialized dynamics in solid-state joining and high-energy density processes, including Friction Stir Spot Welding and Variable Polarity Plasma Arc dynamics. By bridging the gap between theoretical modeling and robust experimental validation, this collection provides actionable insights for the automotive, aerospace, and energy sectors. It serves as an essential reference for engineers and researchers seeking to enhance the structural integrity, efficiency, and longevity of metallic components in rigorous industrial environments. This item is printed on demand. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…