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Author: Clotilde Berdin
Publisher: Presses des MINES
ISBN: 291176255X
Category : Fracture mechanics
Languages : en
Pages : 91
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Book Description
This book presents several aspects of the local approach to fracture: damage mechanisms, experimental techniques, damage evolution law and failure criteria, modelling of damage, and numerical simulation -- Back cover.
Author: Clotilde Berdin
Publisher: Presses des MINES
ISBN: 291176255X
Category : Fracture mechanics
Languages : en
Pages : 91
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Book Description
This book presents several aspects of the local approach to fracture: damage mechanisms, experimental techniques, damage evolution law and failure criteria, modelling of damage, and numerical simulation -- Back cover.
Author: Association euro-africaine pour l'anthropologie du changement social et du développement
Publisher: LIT Verlag Münster
ISBN: 3643105355
Category : Political Science
Languages : en
Pages : 215
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Book Description
Over the last decade West African villages, rural towns, and urban neighbourhoods have experienced changes resulting from democratisation and decentralisation processes. While much hope was invested in decentralisation policies in the 1990s, today there is a need to look at everyday decentralisation practices. In this volume, authors of different scholarly backgrounds focus on political, economic and cultural aspects of decentralisation. By exploring party politics, water provision, schooling, territorial division and cultural understanding the case-studies highlight core stakes and fundamental contradictions of present-day decentralisation in West Africa.
Author:
Publisher: Food & Agriculture Org.
ISBN: 9251388148
Category :
Languages : en
Pages : 282
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Book Description
Author: RECHONaman
Publisher: Lavoisier
ISBN: 2746288052
Category :
Languages : en
Pages : 306
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Book Description
Les objectifs de la mécanique de la rupture sont double, d'une part ils concernent la description des champs mécaniques au voisinage de la pointe de la fissure et les énergies qui leur sont associées et d'autre part, ils traitent de l'évaluation de la nocivité d'une fissure en terme de la propagation de celle-ci. Deux champs d'étude constituent la structure de cet ouvrage, l'un relatif à la modélisation de la singularité induite par la pointe d'une fissure qui est relatée dans le premier tome intitulé : Modélisation des champs mécaniques en pointe de fissure et des singularités. Après un premier volume intitulé "Mécanique de la rupture par fissuration", ce deuxième tome traite des critères de propagation et de bifurcation de fissure en milieu élastique et élastoplastique sous des chargements monotones (Rupture fragile) et dynamique (Rupture par Fatigue). Les solutions analytiques obtenues ne peuvent pas être utilisées dans les structures à géométrie et conditions aux limites variées, alors il sera nécessaire de faire appel aux méthodes d'analyse numérique et plus particulièrement à la méthode des éléments finis. Deux chapitres abordent ces applications numériques : l'un, en tome I, relatif à l'introduction au calcul par éléments finis des structures fissurées et l'autre, dans le tome II traitant de la prévision de la rupture par fissuration des éléments de structures métalliques soumises à la fatigue.
Author: Taoufik Boukharouba
Publisher: Springer Science & Business Media
ISBN: 904812669X
Category : Science
Languages : en
Pages : 616
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Book Description
The First African InterQuadrennial ICF Conference “AIQ-ICF2008” on Damage and Fracture Mechanics – Failure Analysis of Engineering Materials and Structures”, Algiers, Algeria, June 1–5, 2008 is the first in the series of InterQuadrennial Conferences on Fracture to be held in the continent of Africa. During the conference, African researchers have shown that they merit a strong reputation in international circles and continue to make substantial contributions to the field of fracture mechanics. As in most countries, the research effort in Africa is und- taken at the industrial, academic, private sector and governmental levels, and covers the whole spectrum of fracture and fatigue. The AIQ-ICF2008 has brought together researchers and engineers to review and discuss advances in the development of methods and approaches on Damage and Fracture Mechanics. By bringing together the leading international experts in the field, AIQ-ICF promotes technology transfer and provides a forum for industry and researchers of the host nation to present their accomplishments and to develop new ideas at the highest level. International Conferences have an important role to play in the technology transfer process, especially in terms of the relationships to be established between the participants and the informal exchange of ideas that this ICF offers.
Author: Joël Lebossé
Publisher: Développement économique et création d'emplois au niveau local
ISBN:
Category : Banker
Languages : en
Pages : 288
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Book Description
Author: Jane Martindale
Publisher: Taylor & Francis
ISBN: 1040245390
Category : History
Languages : en
Pages : 396
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Book Description
This volume contains articles covering the centuries between the establishment of Carolingian power in Western Europe and the expansion of the Anglo Norman and Angevin ’Empire’ within the French kingdom of the Capetians. The common underlying themes of these papers are the exercise of political power, and the social position and resources of those who wielded power. Aquitaine provides the focus for papers on regional government, individual rulers and members of the aristocracy - men and some women. The most important of the women considered is Eleanor of Aquitaine. The political and economic problems which confronted Carolingian kings of this region are discussed; and the later contribution of the secular ruler (duke, prince, and count) to the ’peace movement’ and peace in Aquitaine is reviewed. Two articles of wide scope discuss the character of the French aristocracy in the earlier middle ages, and consider connections between the acquisition of power and family inheritance patterns. The text of a Latin Conventum of the 11th century is printed with a new translation into English, while an especially written paper offers revised interpretations of this text, which has recently attracted much attention from historians.
Author: D. Francois
Publisher: Elsevier
ISBN: 008052897X
Category : Technology & Engineering
Languages : en
Pages : 497
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Book Description
From Charpy to Present Impact Testing contains 52 peer-reviewed papers selected from those presented at the Charpy Centenary Conference held in Poitiers, France, 2-5 October 2001. The name of Charpy remains associated with impact testing on notched specimens. At a time when many steam engines exploded, engineers were preoccupied with studying the resistance of steels to impact loading. The Charpy test has provided invaluable indications on the impact properties of materials. It revealed the brittle ductile transition of ferritic steels. The Charpy test is able to provide more quantitative results by instrumenting the striker, which allows the evolution of the applied load during the impact to be determined. The Charpy test is of great importance to evaluate the embrittlement of steels by irradiation in nuclear reactors. Progress in computer programming has allowed for a computer model of the test to be developed; a difficult task in view of its dynamic, three dimensional, adiabatic nature. Together with precise observations of the processes of fracture, this opens the possibility of transferring quantitatively the results of Charpy tests to real components. This test has also been extended to materials other than steels, and is also frequently used to test polymeric materials. Thus the Charpy test is a tool of great importance and is still at the root of a number of investigations; this is the reason why it was felt that the centenary of the Charpy test had to be celebrated. The Société Française de Métallurgie et de Matériaux decided to organise an international conference which was put under the auspices of the European Society for the Integrity of Structures (ESIS). This Charpy Centenary Conference (CCC 2001) was held in Poitiers, at Futuroscope in October 2001. More than 150 participants from 17 countries took part in the discussions and about one hundred presentations were given. An exhibition of equipment showed, not only present day testing machines, but also one of the first Charpy pendulums, brought all the way from Imperial College in London. From Charpy to Present Impact Testing puts together a number of significant contributions. They are classified into 6 headings: •Keynote lectures,•Micromechanisms,•Polymers,•Testing procedures,•Applications,•Modelling.
Author: Abdeljalil Akkari
Publisher: Springer Nature
ISBN: 3030446174
Category : Education
Languages : en
Pages : 217
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Book Description
This open access book takes a critical and international perspective to the mainstreaming of the Global Citizenship Concept and analyses the key issues regarding global citizenship education across the world. In that respect, it addresses a pressing need to provide further conceptual input and to open global citizenship agendas to diversity and indigeneity. Social and political changes brought by globalisation, migration and technological advances of the 21st century have generated a rise in the popularity of the utopian and philosophical idea of global citizenship. In response to the challenges of today’s globalised and interconnected world, such as inequality, human rights violations and poverty, global citizenship education has been invoked as a means of preparing youth for an inclusive and sustainable world. In recent years, the development of global citizenship education and the building of students’ global citizenship competencies have become a focal point in global agendas for education, international educational assessments and international organisations. However, the concept of global citizenship education still remains highly contested and subject to multiple interpretations, and its operationalisation in national educational policies proves to be challenging. This volume aims to contribute to the debate, question the relevancy of global citizenship education’s policy objectives and to enhance understanding of local perspectives, ideologies, conceptions and issues related to citizenship education on a local, national and global level. To this end, the book provides a comprehensive and geographically based overview of the challenges citizenship education faces in a rapidly changing global world through the lens of diversity and inclusiveness.
Author: FRANÇOIS
Publisher: Lavoisier
ISBN: 2746243237
Category :
Languages : en
Pages : 496
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Book Description
Concevoir de nouveaux matériaux de structure, allonger la durée de vie des pièces, éviter les ruptures en service font partie des préoccupations majeures des ingénieurs. Une bonne maîtrise du comportement mécanique des matériaux est essentielle pour aboutir à ce résultat. Cet ouvrage aborde ce sujet dans les domaines de la viscoplasticité, de l'endommagement, de la résistance à la fissuration et de la mécanique du contact. Faisant suite à un précédent volume sur le comportement mécanique des matériaux, consacré à l'élasticité et à l'élastoplasticité, il conserve la même démarche qui consiste, en partant des mécanismes actifs à l'échelle microscopique, à remonter aux lois macroscopiques. Le premier chapitre concerne les comportements viscoplastiques qui se manifestent, par exemple, à basse température, par une influence de la vitesse de sollicitation, ou, à haute température, par le fluage sous charge constante. Le deuxième chapitre traite des très nombreux phénomènes d'endommagement que l'on rencontre dans tous les matériaux (métalliques, polymères, verres, bétons ...), comme la cavitation, la fatigue, la corrosion sous contrainte. Le troisième chapitre donne les notions de mécanique de la rupture nécessaires pour comprendre la résistance de la fissuration. Le quatrième chapitre apporte les notions principales de mécanique du contact. Chaque chapitre est suivi d'exercices, énoncés de telle sorte que le lecteur est guidé pas à pas pour trouver la solution. De très nombreuses illustrations facilitent la lecture. Comportement mécanique des matériaux est le fruit du DEA "Mécanique et Matériaux" de la région parisienne. Il s'adresse aussi aux élèves-ingénieurs, ingénieurs et chercheurs. Les développements mathématiques y sont d'un accès facile. Les réelles difficultés, dont la maîtrise n'est pas exempte d'aspects passionnants, résident dans les fréquents changements d'échelle et dans le sens physique auquel il est fait appel.
