Download or read book Comportement anisotrope en fatigue des composants m caniques forg s written by Etienne Pessard and published by . This book was released on 2009 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette étude qui s'inscrit dans le cadre d'un projet ANR traitant du comportement en fatigue des pièces forgées a pour objectif, d'une part, de comprendre les effets des hétérogénéités microstructurales issues de la phase de mise en œuvre sur les mécanismes d'endommagement en fatigue, et d'autre part, de proposer un critère d'endurance anisotrope adapté à la spécificité des composants mécaniques forgés. Dans une première partie, l'analyse des effets des procédés de déformation plastique (forgeage et laminage) sur la tenue en fatigue des composants métalliques obtenus est abordée. A partir de différentes campagnes d'essai, le comportement anisotrope en Fatigue à Grand Nombre de Cycles (FGNC) de différents aciers est caractérisé. Une attention particulière est portée à la description et à l'analyse des mécanismes d'endommagement en FGNC. Les effets de la microstructure et du contenu inclusionnaire sur les mécanismes d'endommagement sont particulièrement analysés. Des essais d'auto-échauffement sont également menés afin de tester l'utilisation de ces méthodes de caractérisation des propriétés en fatigue dites rapides dans le cas d'acier dont le comportement en fatigue est anisotrope. Un critère de fatigue probabiliste anisotrope est ensuite proposé. Basé sur l'hypothèse du maillon le plus faible, il permet d'exprimer de façon simple la compétition possible entre différents types de mécanismes. Le critère obtenu est adapté pour les matériaux contenant ou non des défauts et les prévisions peuvent être entre autres illustrées par le tracé d'un diagramme de Kitagawa probabiliste. Grâce à ce nouveau critère, des paramètres microstructuraux issus de l'opération de mise en forme peuvent être intégrés dans le calcul de dimensionnement en fatigue. Une optimisation de la préforme du composant ou des paramètres de mise en forme peut dès lors être envisagée.
Download or read book Applied Reactor Physics written by Alain Hébert and published by Presses inter Polytechnique. This book was released on 2009 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marketing in Zambia written by Reginald Biddle and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transport Theory written by James J. Duderstadt and published by John Wiley & Sons. This book was released on 1979 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Problems after each chapter
Download or read book Physical Properties of Amorphous Materials written by David Adler and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute for Amorphous Studies was founded in 1982 as the international center for the investigation of amorphous mate rials. It has since played an important role in promoting the und er standing of disordered matter in general. An Institute lecture series on "Fundamentals of Amorphous Materials and Devices" was held during 1982-83 with distinguished speakers from universities and industry. These events were free and open to the public ,and were attended by many representatives of the scientific community. The lectures themselves were highly successful inasmuch as they provided not only formal instruction but also an opportunity for vigorous and stimulating debate. That last element could not be captured within the pages of a book I but the lectures concentrated on the latest advances in the field I which is why their essential contents are he re reproduced in collective form. Together they constitute an interdisciplinary status report of the field. The speakers brought many different viewpoints and a variety of back ground experiences io bear on the problems involved I but though language and conventions vary I the essential unity of the concerns is very clear I as indeed are the ultimate benefits of the many-sided approach.
Download or read book Nuclear Computational Science written by Yousry Azmy and published by Springer Science & Business Media. This book was released on 2010-04-15 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear engineering has undergone extensive progress over the years. In the past century, colossal developments have been made and with specific reference to the mathematical theory and computational science underlying this discipline, advances in areas such as high-order discretization methods, Krylov Methods and Iteration Acceleration have steadily grown. Nuclear Computational Science: A Century in Review addresses these topics and many more; topics which hold special ties to the first half of the century, and topics focused around the unique combination of nuclear engineering, computational science and mathematical theory. Comprising eight chapters, Nuclear Computational Science: A Century in Review incorporates a number of carefully selected issues representing a variety of problems, providing the reader with a wealth of information in both a clear and concise manner. The comprehensive nature of the coverage and the stature of the contributing authors combine to make this a unique landmark publication. Targeting the medium to advanced level academic, this book will appeal to researchers and students with an interest in the progression of mathematical theory and its application to nuclear computational science.
Download or read book The Physics of Nuclear Reactors written by Serge Marguet and published by Springer. This book was released on 2018-02-26 with total page 1462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume offers readers a progressive and highly detailed introduction to the complex behavior of neutrons in general, and in the context of nuclear power generation. A compendium and handbook for nuclear engineers, a source of teaching material for academic lecturers as well as a graduate text for advanced students and other non-experts wishing to enter this field, it is based on the author’s teaching and research experience and his recognized expertise in nuclear safety. After recapping a number of points in nuclear physics, placing the theoretical notions in their historical context, the book successively reveals the latest quantitative theories concerning: • The slowing-down of neutrons in matter • The charged particles and electromagnetic rays • The calculation scheme, especially the simplification hypothesis • The concept of criticality based on chain reactions • The theory of homogeneous and heterogeneous reactors • The problem of self-shielding • The theory of the nuclear reflector, a subject largely ignored in literature • The computational methods in transport and diffusion theories Complemented by more than 400 bibliographical references, some of which are commented and annotated, and augmented by an appendix on the history of reactor physics at EDF (Electricité De France), this book is the most comprehensive and up-to-date introduction to and reference resource in neutronics and reactor theory.
Download or read book Intelligent Structures written by K.P. Chong and published by CRC Press. This book was released on 2003-10-04 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International Workshop on Intelligent Structures, Taipei, Taiwan, 23-26 July 1990.
Download or read book Reactor Dosimetry written by Harry Farrar and published by ASTM International. This book was released on 1994 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 8th ASTM-Euratom Symposium, held in Vail, Colorado, Aug.-Sept. 1993, to provide a forum for experts to discuss their latest results under the broad theme of dosimetry for the correlation of radiation effects. Preceded by a summary of the keynote presentations and followed by summa
Download or read book Nuclear Engineering Handbook written by Kenneth D. Kok and published by CRC Press. This book was released on 2016-10-03 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building upon the success of the first edition, the Nuclear Engineering Handbook, Second Edition, provides a comprehensive, up-to-date overview of nuclear power engineering. Consisting of chapters written by leading experts, this volume spans a wide range of topics in the areas of nuclear power reactor design and operation, nuclear fuel cycles, and radiation detection. Plant safety issues are addressed, and the economics of nuclear power generation in the 21st century are presented. The Second Edition also includes full coverage of Generation IV reactor designs, and new information on MRS technologies, small modular reactors, and fast reactors.
Download or read book Raising Dairy Replacements written by Patrick C. Hoffman and published by . This book was released on 2003 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
