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Author : Maurice Boivin
Publisher :
ISBN 13 :
Total Pages : 149 pages
Book Rating : 4.:/5 (251 download)
Download or read book Contribution à l'étude des deformations finies dans les matériaux ecrouissables written by Maurice Boivin and published by . This book was released on 1970 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Maurice Boivin (spécialiste en mécanique).)
Publisher :
ISBN 13 :
Total Pages : 149 pages
Book Rating : 4.:/5 (464 download)
Download or read book Contribution à l'étude des déformations finies dans les matériaux écrouissables written by Maurice Boivin (spécialiste en mécanique).) and published by . This book was released on 1970 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jean-Luc Hanus
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (49 download)
Download or read book Contribution à l'étude de la localisation des déformations dans des matériaux et structures élasto-(visco)-non-linéaires written by Jean-Luc Hanus and published by . This book was released on 1999 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE PROBLEME DE L'APPARITION D'UN MODE DE DEFORMATION LOCALISE DANS DES MATERIAUX ET STRUCTURES EST ABORDE DANS CETTE ETUDE. PLUS PRECISEMENT, LA MODELISATION DE LA LOCALISATION DES DEFORMATIONS DANS DES MATERIAUX A COMPORTEMENT DEPENDANT DU TEMPS ET POUR DES CHARGEMENTS LENTS EST ENTREPRISE. NOTRE ATTENTION SE PORTE TANT SUR LE PROBLEME THEORIQUE - DEFINITION D'UN CRITERE DE LOCALISATION - QUE SUR LE PROBLEME NUMERIQUE - EXPLICATION DE LA SENSIBILITE DE LA REPONSE NUMERIQUE AU MAILLAGE. UNE ANALYSE DE RESULTATS EXPERIMENTAUX RECENTS - OBTENUS A L'ECHELLE MESOSCOPIQUE ET METTANT EN EVIDENCE DES EFFETS D'ACCELERATION LOCAUX A LA LOCALISATION - NOUS CONDUIT A SUPPOSER QUE LA LOCALISATION DES DEFORMATIONS EST UN PHENOMENE ESSENTIELLEMENT DYNAMIQUE ET CE MEME POUR DES CHARGEMENTS LENTS. EN CONSEQUENCE, UN CRITERE DE PERTE DE QUASI-STATICITE / LOCALISATION EST ETABLI. A LA VERIFICATION DE CE DERNIER, LE CALCUL NE DOIT PLUS ETRE CONDUIT STATIQUEMENT MAIS POURSUIVI DE MANIERE DYNAMIQUE. DIVERSES SIMULATIONS NUMERIQUES, TANT SUR UN ELEMENT DE VOLUME QUE SUR UNE STRUCTURE (ELEMENTS FINIS), PERMETTENT D'ILLUSTRER ET DE DISCUTER LA DEMARCHE THEORIQUE PROPOSEE.
Author : Marie-Jeanne Philippe
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.:/5 (493 download)
Download or read book Contribution à l'étude de la déformation des matériaux hexagonaux written by Marie-Jeanne Philippe and published by . This book was released on 1983 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jérôme Oudin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (64 download)
Download or read book Contribution diverses à l'étude de la déformation des métaux par la théorie de la plasticité written by Jérôme Oudin and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernard Jaoul
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (844 download)
Download or read book Contribution a l'etude de la deformation plastique ... pref written by Bernard Jaoul and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dieter Weichert
Publisher : Springer Science & Business Media
ISBN 13 : 9781402003820
Total Pages : 400 pages
Book Rating : 4.0/5 (38 download)
Download or read book Inelastic Analysis of Structures under Variable Loads written by Dieter Weichert and published by Springer Science & Business Media. This book was released on 2001-11-30 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The question whether a structure or a machine component can carry the applied loads, and with which margin of safety, or whether it will become unserviceable due to collapse or excessive inelastic deformations, has always been a major concern for civil and mechanical engineers. The development of methods to answer this technologically crucial question without analysing the evolution of the system under varying loads, has a long tradition that can be traced back even to the times of emerging mechanical sciences in the early 17th century. However, the scientific foundations of the theories underlying these methods, nowadays frequently called "direct", were established sporadically in the Thirties of the 20th century and systematically and rigorously in the Fifties. Further motivations for the development of direct analysis techniques in applied mechanics of solids and structures arise from the circumstance that in many engineering situations the external actions fluctuate according to time histories not a priori known except for some essential features, e.g. variation intervals. In such situations the critical events (or "limit states") to consider, besides plastic collapse, are incremental collapse (or "ratchetting") and alternating plastic yielding, namely lack of "shakedown". Non evolutionary, direct methods for ultimate limit state analysis of structures subjected to variably-repeated external actions are the objectives of most papers collected in this book, which also contains a few contributions on related topics.
Author : Zenon Mróz
Publisher : Springer Science & Business Media
ISBN 13 : 9401102716
Total Pages : 501 pages
Book Rating : 4.4/5 (11 download)
Download or read book Inelastic Behaviour of Structures under Variable Loads written by Zenon Mróz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers is a state of the art presentation of theories and methods related to the problem of the behaviour of mechanical structures under variable loads beyond their elastic limit In particular, the problems of shakedown, ratchetting, transient and asymptotic cyclic states are addressed. The volume is composed of four chapters devoted to material modelling for cyclic loading conditions; general theory of accommodated states of structures; effects of changes of the geometry on the inelastic structural response; and numerical techniques with applications to particular engineering problems. It was aimed to provide a unified approach in order to understand both inelastic material and structural response under variable loading conditions. The attempt to extend the classical shakedown theory of Melan and Koiter to geometrically non-linear problems is presented in several papers. The industrial application of cyclic plasticity to the analysis and the design of pressure bellows, compensators, turbine disks, or flange connections under thermal and pressure cycles illustrates the great potential of the numerical techniques developed for this purpose using mostly min-max approaches. The treatment of railway problems and the analysis and optimisation of pavements are further examples of important areas of applications. Emphasis was laid on approaches that take into account the fact that loading histories are often not precisely known Therefore, the center of interest lies in other than step by step calculation methods.
Author : Konstantinos Spiliopoulos
Publisher : Springer Science & Business Media
ISBN 13 : 9400768273
Total Pages : 281 pages
Book Rating : 4.4/5 (7 download)
Download or read book Direct Methods for Limit States in Structures and Materials written by Konstantinos Spiliopoulos and published by Springer Science & Business Media. This book was released on 2013-08-13 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowing the safety factor for limit states such as plastic collapse, low cycle fatigue or ratcheting is always a major design consideration for civil and mechanical engineering structures that are subjected to loads. Direct methods of limit or shakedown analysis that proceed to directly find the limit states offer a better alternative than exact time-stepping calculations as, on one hand, an exact loading history is scarcely known, and on the other they are much less time-consuming. This book presents the state of the art on various topics concerning these methods, such as theoretical advances in limit and shakedown analysis, the development of relevant algorithms and computational procedures, sophisticated modeling of inelastic material behavior like hardening, non-associated flow rules, material damage and fatigue, contact and friction, homogenization and composites.
