Aspects probabilistes et microstructuraux de l'amorçage des fissures de fatigue dans l'alliage inco 718 PDF Download
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Author: Franck Alexandre
Publisher:
ISBN:
Category :
Languages : fr
Pages : 273
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Book Description
Author: Franck Alexandre
Publisher:
ISBN:
Category :
Languages : fr
Pages : 273
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Book Description
Author: Claude Bathias
Publisher: John Wiley & Sons
ISBN: 1118616898
Category : Technology & Engineering
Languages : en
Pages : 251
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Book Description
The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.
Author: Nizar Aifaoui
Publisher: Springer Nature
ISBN: 3030271463
Category : Technology & Engineering
Languages : en
Pages : 961
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Book Description
This book offers a collection of original peer-reviewed contributions presented at the 8th International Congress on Design and Modeling of Mechanical Systems (CMSM’2019), held in Hammamet, Tunisia, from the 18th to the 20th of March 2019. It reports on research, innovative industrial applications and case studies concerning mechanical systems and related to modeling and analysis of materials and structures, multiphysics methods, nonlinear dynamics, fluid structure interaction and vibroacoustics, design and manufacturing engineering. Continuing on the tradition of the previous editions, these proceedings offers a broad overview of the state-of-the art in the field and a useful resource for academic and industry specialists active in the field of design and modeling of mechanical systems. CMSM’2019 was jointly organized by two leading Tunisian research laboratories: the Mechanical Engineering Laboratory of the National Engineering School of Monastir, University of Monastir and the Mechanical, Modeling and Manufacturing Laboratory of the National Engineering School of Sfax, University of Sfax.
Author: Sammy Tin
Publisher: Springer Nature
ISBN: 3030518345
Category : Technology & Engineering
Languages : en
Pages : 1098
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Book Description
The 14th International Symposium on Superalloys (Superalloys 2020) highlights technologies for lifecycle improvement of superalloys. In addition to the traditional focus areas of alloy development, processing, mechanical behavior, coatings, and environmental effects, this volume includes contributions from academia, supply chain, and product-user members of the superalloy community that highlight technologies that contribute to improving manufacturability, affordability, life prediction, and performance of superalloys.
Author: Jonathan Cormier
Publisher: Springer Nature
ISBN: 3031639375
Category :
Languages : en
Pages : 1121
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Book Description
Author: SYLVAIN.. PONNELLE
Publisher:
ISBN:
Category :
Languages : fr
Pages : 268
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Book Description
L'OBJECTIF DE CETTE ETUDE SUR DE LA PROPAGATION DES FISSURES PAR FATIGUE A HAUTE TEMPERATURE DANS L'ALLIAGE 718 EST D'UNE PART DE S'APPROCHER DES CONDITIONS REELLES D'UTILISATION ET D'AUTRE PART DE CONTRIBUER A LA COMPREHENSION DE L'EFFET D'UN TEMPS DE MAINTIEN PENDANT UN CYCLE DE FATIGUE. LE PREMIER ASPECT EST ABORDE PAR L'UTILISATION D'UNE PIECE INDUSTRIELLE REELLE (DISQUE DE TURBINE) DE LA PRODUCTION DE SNECMA MOTEURS. DES ESSAIS DE PROPAGATION EN FATIGUE-FLUAGE A 650\C SUR EPROUVETTES CT (FISSURES LONGUES 2D) AINSI QUE SUR EPROUVETTES KB 2.5 (PETITES FISSURES SEMI-CIRCULAIRES) MONTRENT UNE FORTE INTERACTION ENTRE L'ORIENTATION DU FRONT DE FISSURE ET LE FIBRAGE INDUIT PAR LES OPERATIONS DE MISE EN FORME. LORSQUE LE FRONT DE FISSURE EST PERPENDICULAIRE AU FIBRAGE, LE DELAMINAGE TRANSVERSE DES EPROUVETTES LE LONG D'ALIGNEMENTS DE PHASES ANNULE TOUT EFFET ACCELERATEUR DU TEMPS DE MAINTIEN. LORSQUE LE FRONT DE FISSURE SE PROPAGE ENTRE LES NAPPES DE PHASE , L'EFFET DE TEMPS DE MAINTIEN EST TRES MARQUE. SUR DEFAUT 3D, UNE FORTE ANISOTROPIE DE LA VITESSE DE PROPAGATION EST OBSERVEE, LIEE AUX EFFETS D'ENVIRONNEMENT CAR ABSENTE SOUS VIDE. POUR LE SECOND ASPECT, L'APPLICATION DE CHARGEMENTS MECANIQUES PLUS PROCHES DE LA REALITE QUE LE CYCLE DE FATIGUE-FLUAGE MONTRE QUE LA SENSIBILITE AU TEMPS DE MAINTIEN PEUT ETRE FORTEMENT REDUITE DES QU'ON DECHARGE MECANIQUEMENT L'EPROUVETTE AVANT L'APPLICATION DU PALIER (CYCLE AVEC PIC DE CONTRAINTE). DES 20% DE DECHARGE, L'EFFET D'UN TEMPS DE MAINTIEN DE 300S EST ANNULE. LA SIMULATION NUMERIQUE DE CE TYPE DE CHARGEMENT MONTRE QUE LES EFFETS D'ENVIRONNEMENT SONT ANNIHILES PAR UNE RELAXATION RAPIDE DES CONTRAINTES ET UNE FORTE DIMINUTION DE LA VITESSE DE DEFORMATION, EMPECHANT LE TRANSPORT DES ESPECES FRAGILISANTES DANS LE MATERIAU. DE PLUS, ON MONTRE QUE LA VARIATION DE LA TEMPERATURE PENDANT LE TEMPS DE MAINTIEN PEUT EGALEMENT MENER A UN FORT RALENTISSEMENT DE LA VITESSE DE PROPAGATION PAR RAPPORT A DES CONDITIONS ISOTHERMES.
Author: Yukitaka Murakami
Publisher: Elsevier
ISBN: 0080496563
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
Metal fatigue is an essential consideration for engineers and researchers who are looking at factors that cause metals to fail through stress, corrosion, etc. This is an English translation of a book originally published in Japan in 1993, with an additional two chapters on the fatigue failure of steels and the effect of surface roughness on fatigue strength. The methodology is based on important and reliable results and may be usefully applied to other fatigue problems not directly treated in this book.
Author: Mohamed Haddar
Publisher: Springer Science & Business Media
ISBN: 3642371434
Category : Technology & Engineering
Languages : en
Pages : 653
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Book Description
The 5th International Congress on Design and Modeling of Mechanical Systems (CMSM) was held in Djerba, Tunisia on March 25-27, 2013 and followed four previous successful editions, which brought together international experts in the fields of design and modeling of mechanical systems, thus contributing to the exchange of information and skills and leading to a considerable progress in research among the participating teams. The fifth edition of the congress (CMSM ́2013), organized by the Unit of Mechanics, Modeling and Manufacturing (U2MP) of the National School of Engineers of Sfax, Tunisia, the Mechanical Engineering Laboratory (MBL) of the National School of Engineers of Monastir, Tunisia and the Mechanics Laboratory of Sousse (LMS) of the National School of Engineers of Sousse, Tunisia, saw a significant increase of the international participation. This edition brought together nearly 300 attendees who exposed their work on the following topics: mechatronics and robotics, dynamics of mechanical systems, fluid structure interaction and vibroacoustics, modeling and analysis of materials and structures, design and manufacturing of mechanical systems. This book is the proceedings of CMSM ́2013 and contains a careful selection of high quality contributions, which were exposed during various sessions of the congress. The original articles presented here provide an overview of recent research advancements accomplished in the field mechanical engineering.
Author: Mark C. Hardy
Publisher: Wiley-TMS
ISBN: 9781118996669
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
This book contains the Proceedings 13th International Symposium on Superalloys
Author: Julien Baroth
Publisher: John Wiley & Sons
ISBN: 1118601122
Category : Technology & Engineering
Languages : en
Pages : 271
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Book Description
This book provides answers to the following problems: how to identify the most probable critical failures; how to describe and use data-concerning materials that are either heterogeneous, time-variant, or space-variant; how to quantify the reliability and lifetime of a system; how to use feedback information to actualize reliability results; and how to optimize an inspection politic or a maintenance strategy. Numerous authors from public research centers and firms propose a synthesis of methods, both new and well-known, and offer numerous examples concerning dams, geotechnical study, and structures from nuclear and civil engineering.
