Special Issue On Micromechanical Failure Models For Fracture Predictions
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Special Issue On Micromechanical Failure Models For Fracture Predictions
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Author :
language : en
Publisher:
Release Date : 2000
Special Issue On Micromechanical Failure Models For Fracture Predictions written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Special Issue On Micromechanical Failure Models For Fracture Predictions
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2000
Special Issue On Micromechanical Failure Models For Fracture Predictions written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Micromechanics Of Fracture And Damage
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Author : Luc Dormieux
language : en
Publisher: John Wiley & Sons
Release Date : 2016-03-31
Micromechanics Of Fracture And Damage written by Luc Dormieux and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-31 with Technology & Engineering categories.
This book deals with the mechanics and physics of fractures at various scales. Based on advanced continuum mechanics of heterogeneous media, it develops a rigorous mathematical framework for single macrocrack problems as well as for the effective properties of microcracked materials. In both cases, two geometrical models of cracks are examined and discussed: the idealized representation of the crack as two parallel faces (the Griffith crack model), and the representation of a crack as a flat elliptic or ellipsoidal cavity (the Eshelby inhomogeneity problem). The book is composed of two parts: The first part deals with solutions to 2D and 3D problems involving a single crack in linear elasticity. Elementary solutions of cracks problems in the different modes are fully worked. Various mathematical techniques are presented, including Neuber-Papkovitch displacement potentials, complex analysis with conformal mapping and Eshelby-based solutions. The second part is devoted to continuum micromechanics approaches of microcracked materials in relation to methods and results presented in the first part. Various estimates and bounds of the effective elastic properties are presented. They are considered for the formulation and application of continuum micromechanics-based damage models.
Damage Mechanics And Micromechanics Of Localized Fracture Phenomena In Inelastic Solids
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Author : George Z Voyiadjis
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-01-29
Damage Mechanics And Micromechanics Of Localized Fracture Phenomena In Inelastic Solids written by George Z Voyiadjis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-29 with Technology & Engineering categories.
This book resulted from a series of lecture notes presented in CISM, Udine in July 7 -11, 2008. The papers inform about recent advances in continuum damage mechanics for both metals and metal matrix composites as well as the micromechanics of localization in inelastic solids. Also many of the different constitutive damage models that have recently appeared in the literature and the different approaches to this topic are presented, making them easily accessible to researchers and graduate students in civil engineering, mechanical engineering, engineering mechanics, aerospace engineering, and material science.
Micromechanical Prediction Of Fracture Toughness For Pressure Vessel Steel Using A Coupled Model
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Author : MR. Goldthorpe
language : en
Publisher:
Release Date : 1999
Micromechanical Prediction Of Fracture Toughness For Pressure Vessel Steel Using A Coupled Model written by MR. Goldthorpe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Biaxial wide plate tests categories.
A method of analyzing the ductile to brittle transition region of a ferritic steel using a coupled micromechanical model of ductile damage, stable crack growth and cleavage fracture has been developed to improve the definition of upper shelf behavior for actual structures. Ductile damage is modelled using the Gurson model as modified by Tvergaard, along with a specially developed crack growth user element. The probability of cleavage fracture is predicted by post-processing the finite element results using the Beremin model of cleavage fracture. Predictions are made of ductile tearing and cleavage fracture in test specimen and wide plate configurations of A533B steel for a range of temperatures. The coupled model is capable of predicting transition toughness and transition temperature shifts for different levels of structural constraint. An analytically-based definition of the onset of upper shelf temperature (OUST) is the temperature at which the coupled ductile damage/cleavage fracture model predicts a probability of failure by cleavage fracture of 5%. Estimates of the shift in the OUST due to different levels of in-plane crack tip constraint are made using the elastic T-stress as a measure of constraint. There is potential for using the T-stress as a measure of structural constraint in order to determine shifts in transition temperature for materials with degraded toughness.
Micromechanisms Of Fracture And Fatigue
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Author : Jaroslav Pokluda
language : en
Publisher: Springer
Release Date : 2010-06-05
Micromechanisms Of Fracture And Fatigue written by Jaroslav Pokluda and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-05 with Technology & Engineering categories.
Micromechanisms of Fracture and Fatigue forms the culmination of 20 years of research in the field of fatigue and fracture. It discusses a range of topics and comments on the state of the art for each. The first part is devoted to models of deformation and fracture of perfect crystals. Using various atomistic methods, the theoretical strength of solids under simple and complex loading is calculated for a wide range of elements and compounds, and compared with experimental data. The connection between the onset of local plasticity in nanoindentation tests and the ideal shear strength is analysed using a multi-scale approach. Moreover, the nature of intrinsic brittleness or ductility of perfect crystal lattices is demonstrated by the coupling of atomistic and mesoscopic approaches, and compared with brittle/ductile behaviour of engineering materials. The second part addresses extrinsic sources of fracture toughness of engineering materials, related to their microstructure and microstructurally-induced crack tortuosity. Micromechanisms of ductile fracture are also described, in relation to the fracture strain of materials. Results of multilevel modelling, including statistical aspects of microstructure, are used to explain remarkable phenomena discovered in experiments. In the third part of the book, basic micromechanisms of fatigue cracks propagation under uniaxial and multiaxial loading are discussed on the basis of the unified mesoscopic model of crack tip shielding and closure, taking both microstructure and statistical effects into account. Applications to failure analysis are also outlined, and an attempt is made to distinguish intrinsic and extrinsic sources of materials resistance to fracture. Micromechanisms of Fracture and Fatigue provides scientists, researchers and postgraduate students with not only a deep insight into basic micromechanisms of fracture behaviour of materials, but also a number of engineering applications.
Fracture Mechanics And Fatigue Damage Of Materials And Structures
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Author : Grzegorz Lesiuk
language : en
Publisher: Mdpi AG
Release Date : 2023-07-12
Fracture Mechanics And Fatigue Damage Of Materials And Structures written by Grzegorz Lesiuk and has been published by Mdpi AG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-12 with Technology & Engineering categories.
One of the most important aspects of the engineering assessment of the technical condition of structures and materials is the ability to assess the fatigue behavior of materials and structures. In addition, another important topic is the design of materials or structures that can resist fatigue and fracture. Modern science provides us with an increasing number of new materials, from superalloys of metals manufactured conventionally as well as via additive manufacturing to functionally advanced composites. Against this background, fundamental knowledge of the fatigue behavior and fracture mechanics of different material groups provides a convenient platform for communication between different interested groups and fields: from material science, numerical engineering and mathematical modeling to hybrid methods for fatigue life prediction. This Special Issue facilitates such an exchange of ideas on recent developments in the field of fatigue and fracture and is especially focused on fatigue crack growth analysis, the description of fatigue damage in metals and composites, probabilistic approaches and fracture mechanics analysis, as well as fatigue failure analysis and lifetime prediction.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1968
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Weights and measures categories.
Special Issue On Mechanics Of Fracture And Failure In Geomaterials
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Author : Anil Misra
language : en
Publisher:
Release Date : 2002
Special Issue On Mechanics Of Fracture And Failure In Geomaterials written by Anil Misra and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Stochastic Micromechanical Modeling Of Cleavage Fracture In The Ductile Brittle Transition Region
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Author : David I. Auen Stienstra
language : en
Publisher:
Release Date : 1990
Stochastic Micromechanical Modeling Of Cleavage Fracture In The Ductile Brittle Transition Region written by David I. Auen Stienstra and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Fracture mechanics categories.