Author: Julien Chaussidon
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
Book Description
Sous certaines conditions, un incident dans une centrale nucléaire peut mener à la rupture fragile par clivage de la cuve de refroidissement faite d'acier bainitique irradié. Pour comprendre l'origine de cette rupture, nous avons étudié la plasticité dans le fer Cubique Centré à basse température par des simulations à différentes échelles. Des simulations de Dynamique Moléculaire ont confirmé la forte dépendance du glissement des dislocations vis en fonction de la température et de la contrainte. Les informations issues de ces simulations ont été complétées par des données expérimentales pour bâtir un code de Dynamique des Dislocations dédié à la structure Cubique Centrée à basse température. Ce code a été utilisé pour modéliser la plasticité développée dans une latte de fer-alpha à différentes températures. L'analyse des microstructures confirme le rôle de l'abaissement de la température sur l'amorçage du clivage.
Etude multi échelle de la plasticité du fer-alpha à basse température
Author: Julien Chaussidon
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
Book Description
Sous certaines conditions, un incident dans une centrale nucléaire peut mener à la rupture fragile par clivage de la cuve de refroidissement faite d'acier bainitique irradié. Pour comprendre l'origine de cette rupture, nous avons étudié la plasticité dans le fer Cubique Centré à basse température par des simulations à différentes échelles. Des simulations de Dynamique Moléculaire ont confirmé la forte dépendance du glissement des dislocations vis en fonction de la température et de la contrainte. Les informations issues de ces simulations ont été complétées par des données expérimentales pour bâtir un code de Dynamique des Dislocations dédié à la structure Cubique Centrée à basse température. Ce code a été utilisé pour modéliser la plasticité développée dans une latte de fer-alpha à différentes températures. L'analyse des microstructures confirme le rôle de l'abaissement de la température sur l'amorçage du clivage.
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
Book Description
Sous certaines conditions, un incident dans une centrale nucléaire peut mener à la rupture fragile par clivage de la cuve de refroidissement faite d'acier bainitique irradié. Pour comprendre l'origine de cette rupture, nous avons étudié la plasticité dans le fer Cubique Centré à basse température par des simulations à différentes échelles. Des simulations de Dynamique Moléculaire ont confirmé la forte dépendance du glissement des dislocations vis en fonction de la température et de la contrainte. Les informations issues de ces simulations ont été complétées par des données expérimentales pour bâtir un code de Dynamique des Dislocations dédié à la structure Cubique Centrée à basse température. Ce code a été utilisé pour modéliser la plasticité développée dans une latte de fer-alpha à différentes températures. L'analyse des microstructures confirme le rôle de l'abaissement de la température sur l'amorçage du clivage.
Underground Disposal of Radioactive Wastes
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 68
Book Description
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 68
Book Description
Properties of UO2
Author: J. Belle
Publisher:
ISBN:
Category : Nuclear fuels
Languages : en
Pages : 146
Book Description
Publisher:
ISBN:
Category : Nuclear fuels
Languages : en
Pages : 146
Book Description
The Metals Black Book
Author: Michael Lash Wayman
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 738
Book Description
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 738
Book Description
CASTI Metals Black Book
Author: John E. Bringas
Publisher:
ISBN:
Category : Iron alloys
Languages : en
Pages : 854
Book Description
Publisher:
ISBN:
Category : Iron alloys
Languages : en
Pages : 854
Book Description
Radioactive Waste Management and Regulation
Author: Mason Willrich
Publisher:
ISBN:
Category : Social Science
Languages : en
Pages : 150
Book Description
Discusses the nature of post-fission radioactive waste, the operations that spent fuel goes through after it is discharged from a reactor, and the problem of waste management.
Publisher:
ISBN:
Category : Social Science
Languages : en
Pages : 150
Book Description
Discusses the nature of post-fission radioactive waste, the operations that spent fuel goes through after it is discharged from a reactor, and the problem of waste management.
Readings on Color: The philosophy of color
Author: Alex Byrne
Publisher: MIT Press
ISBN: 9780262522304
Category : Color
Languages : en
Pages : 354
Book Description
Publisher: MIT Press
ISBN: 9780262522304
Category : Color
Languages : en
Pages : 354
Book Description
Extraterrestrial Seismology
Author: Vincent C. H. Tong
Publisher: Cambridge University Press
ISBN: 1107041724
Category : Science
Languages : en
Pages : 467
Book Description
Taking a transdisciplinary approach to seismology, this unique book reviews the most recent developments in planetary seismology, helioseismology, and asteroseismology.
Publisher: Cambridge University Press
ISBN: 1107041724
Category : Science
Languages : en
Pages : 467
Book Description
Taking a transdisciplinary approach to seismology, this unique book reviews the most recent developments in planetary seismology, helioseismology, and asteroseismology.
Fashionable Nonsense
Author: Alan Sokal
Publisher: Picador
ISBN: 1466862408
Category : Philosophy
Languages : en
Pages : 317
Book Description
In 1996 physicist Alan Sokal published an essay in Social Text--an influential academic journal of cultural studies--touting the deep similarities between quantum gravitational theory and postmodern philosophy. Soon thereafter, the essay was revealed as a brilliant parody, a catalog of nonsense written in the cutting-edge but impenetrable lingo of postmodern theorists. The event sparked a furious debate in academic circles and made the headlines of newspapers in the U.S. and abroad. In Fashionable Nonsense: Postmodern Intellectuals' Abuse of Science, Sokal and his fellow physicist Jean Bricmont expand from where the hoax left off. In a delightfully witty and clear voice, the two thoughtfully and thoroughly dismantle the pseudo-scientific writings of some of the most fashionable French and American intellectuals. More generally, they challenge the widespread notion that scientific theories are mere "narrations" or social constructions.
Publisher: Picador
ISBN: 1466862408
Category : Philosophy
Languages : en
Pages : 317
Book Description
In 1996 physicist Alan Sokal published an essay in Social Text--an influential academic journal of cultural studies--touting the deep similarities between quantum gravitational theory and postmodern philosophy. Soon thereafter, the essay was revealed as a brilliant parody, a catalog of nonsense written in the cutting-edge but impenetrable lingo of postmodern theorists. The event sparked a furious debate in academic circles and made the headlines of newspapers in the U.S. and abroad. In Fashionable Nonsense: Postmodern Intellectuals' Abuse of Science, Sokal and his fellow physicist Jean Bricmont expand from where the hoax left off. In a delightfully witty and clear voice, the two thoughtfully and thoroughly dismantle the pseudo-scientific writings of some of the most fashionable French and American intellectuals. More generally, they challenge the widespread notion that scientific theories are mere "narrations" or social constructions.
Lake Chilwa
Author: M. Kalk
Publisher: Springer Science & Business Media
ISBN: 9400995946
Category : Science
Languages : en
Pages : 444
Book Description
Leonard C. Beadle In contrast to the more sta bie oceans, inland waters are, on the geological time scale, short-lived and are subject to great fluctuations in chemical composition and physical features. Very few lakes and rivers have existed continuously for more than a million years, and the life of the majority is to be measured in thousands or less. Earth movements, erosion and long-term climatic changes in the past have caused many of them to appear and disappear. No wonder then that most freshwater organism are especially adapted to great changes and many even to temporary extinction of their environment. Recent studies of residual sediments from existing and extinct lakes in tropical Africa have told us much about their age and the past history of their faunas and floras, from which we may deduce something about the climate and the conditions in the water in the past. The forces that have formed and moulded the African Great Lakes have been catastrophic in their violence and effects. They are not yet finished, but the present rate of change is, in human terms, too slow for direct observation of the ecological effects. The large man-made lakes are providing very good opportunities for studying the chemi cal and biological consequences of the initial filling but, once filled, they are artificially protected against major fluctuations.
Publisher: Springer Science & Business Media
ISBN: 9400995946
Category : Science
Languages : en
Pages : 444
Book Description
Leonard C. Beadle In contrast to the more sta bie oceans, inland waters are, on the geological time scale, short-lived and are subject to great fluctuations in chemical composition and physical features. Very few lakes and rivers have existed continuously for more than a million years, and the life of the majority is to be measured in thousands or less. Earth movements, erosion and long-term climatic changes in the past have caused many of them to appear and disappear. No wonder then that most freshwater organism are especially adapted to great changes and many even to temporary extinction of their environment. Recent studies of residual sediments from existing and extinct lakes in tropical Africa have told us much about their age and the past history of their faunas and floras, from which we may deduce something about the climate and the conditions in the water in the past. The forces that have formed and moulded the African Great Lakes have been catastrophic in their violence and effects. They are not yet finished, but the present rate of change is, in human terms, too slow for direct observation of the ecological effects. The large man-made lakes are providing very good opportunities for studying the chemi cal and biological consequences of the initial filling but, once filled, they are artificially protected against major fluctuations.