Elastodynamic Crack Problems

Elastodynamic Crack Problems PDF Author: George C. Sih
Publisher: Springer Science & Business Media
ISBN: 9789028601567
Category : Science
Languages : en
Pages : 410

Get Book Here

Book Description

Elastodynamic Crack Problems

Elastodynamic Crack Problems PDF Author: George C. Sih
Publisher: Springer Science & Business Media
ISBN: 9789028601567
Category : Science
Languages : en
Pages : 410

Get Book Here

Book Description


Eight Non-Classical Problems of Fracture Mechanics

Eight Non-Classical Problems of Fracture Mechanics PDF Author: Aleksander N. Guz
Publisher: Springer Nature
ISBN: 3030775011
Category : Technology & Engineering
Languages : en
Pages : 390

Get Book Here

Book Description
This book presents an analysis of eight non-classical problems of fracture and failure mechanics mainly obtained by research in the department of dynamics and stability of continuum of the S. P. Timoshenko Institute of Mechanics of the National Academy of Sciences of Ukraine (NAS of Ukraine). It focusses on the application of the 3D (three-dimensional) theories of stability, dynamics, and statics of solid mechanics to the investigation of non-classical problems of fracture and failure mechanics.

Cracks and Fracture

Cracks and Fracture PDF Author: K. Bertram Broberg
Publisher: Elsevier
ISBN: 0080503276
Category : Technology & Engineering
Languages : en
Pages : 771

Get Book Here

Book Description
Cracks and Fracture consists of nine chapters in logical sequence. In two introductory chapters, physical processes in the vicinity of the crack edge are discussed and the fracture process is described. Chapter 3 develops general basic concepts and relations in crack mechanics, such as path independent integrals, stress intensity factors and energy flux into the crack edge region. Chapters 4-7 deal with elastostatic cracks, stationary or slowly moving elastic-plastic cracks, elastodynamic crack mechanics and elastoplastic aspects of fracture, including dynamic fracture mechanics. Appendices include general formulae, the basic theory of analytic functions, introduction to Laplace and Hankel transforms and description of certain basic relations, for instance for stress waves in solids. There is an extensive bibliography, containing references to both classical and recent work, and a comprehensive index. Presents an extensive bibliography containing references to both classical and recent works and a comprehensive index Appendices include general formulas, the basic theory of analytic functions, introduction to Laplace and Hankel transforms, and descriptions of certain basic relations, for instance for stress waves in solids

The Evaluation of Materials and Structures by Quantitative Ultrasonics

The Evaluation of Materials and Structures by Quantitative Ultrasonics PDF Author: J.D. Achenbach
Publisher: Springer
ISBN: 3709143152
Category : Technology & Engineering
Languages : en
Pages : 392

Get Book Here

Book Description
Nondestructive evaluation (NDE) procedures are needed for materials processing, as well as for post-process materials testing. They play important roles in product design, analysis of service-life expectancy, manufacturing and quality control of manufactured products. They are also essential to on-line monitoring of the integrity of structural elements and complex systems. Rational accept and reject criteria should be based on NDE tests. Critical safety, efficiency and operational features of large-scale structures depend on adequate NDE capabilities. The lectures presented in this volume are concerned with quantitative ultrasonic NDE. They present fundamental concepts and basic theory, as well as applications to the detection of cracks and the evaluation of material properties. The following topics are discussed: basic wave propagation theory for ultrasonic NDE; piezoelectric transducers, EMATS and ultrasonic spectroscopy; laser-based ultrasonics; acoustoelasticity; ultrasound in solids with porosity, microcracking and polycrystalline structuring; the determination of mechanical properties of composite materials; inverse problems and imaging.

Reciprocity in Elastodynamics

Reciprocity in Elastodynamics PDF Author: J. D. Achenbach
Publisher: Cambridge University Press
ISBN: 9780521817349
Category : Mathematics
Languages : en
Pages : 280

Get Book Here

Book Description
Important monograph by international authority who presents new methods/applications of a classical technique in elasticity.

Mechanics of Fracture Initiation and Propagation

Mechanics of Fracture Initiation and Propagation PDF Author: George C. Sih
Publisher: Springer Science & Business Media
ISBN: 940113734X
Category : Science
Languages : en
Pages : 429

Get Book Here

Book Description
The assessment of crack initiation and/or propagation has been the subject of many past discussions on fracture mechanics. Depending on how the chosen failure criterion is combined with the solution of a particular theory of continuum mechanics, the outcome could vary over a wide range. Mod elling of the material damage process could be elusive if the scale level of observation is left undefined. The specification of physical dimension alone is not sufficient because time and temperature also play an intimate role. It is only when the latter two variables are fixed that failure predictions can be simplified. The sudden fracture of material with a pre-existing crack is a case in point. Barring changes in the local temperature,* the energy released to create a unit surface area of an existing crack can be obtained by considering the change in elastic energy of the system before and after crack extension. Such a quantity has been referred to as the critical energy release rate, G e, or stress intensity factor, K Ie. Other parameters, such as the crack opening displacement (COD), path-independent J-integral, etc. , have been proposed; their relation to the fracture process is also based on the energy release concept. These one-parameter approaches, however, are unable simultaneously to account for the failure process of crack initiation, propagation and onset of rapid fracture. A review on the use of G, K I, COD, J, etc. , has been made by Sih [1,2].

Seismic Wave Propagation in Non-Homogeneous Elastic Media by Boundary Elements

Seismic Wave Propagation in Non-Homogeneous Elastic Media by Boundary Elements PDF Author: George D. Manolis
Publisher: Springer
ISBN: 3319452061
Category : Technology & Engineering
Languages : en
Pages : 301

Get Book Here

Book Description
This book focuses on the mathematical potential and computational efficiency of the Boundary Element Method (BEM) for modeling seismic wave propagation in either continuous or discrete inhomogeneous elastic/viscoelastic, isotropic/anisotropic media containing multiple cavities, cracks, inclusions and surface topography. BEM models may take into account the entire seismic wave path from the seismic source through the geological deposits all the way up to the local site under consideration. The general presentation of the theoretical basis of elastodynamics for inhomogeneous and heterogeneous continua in the first part is followed by the analytical derivation of fundamental solutions and Green's functions for the governing field equations by the usage of Fourier and Radon transforms. The numerical implementation of the BEM is for antiplane in the second part as well as for plane strain boundary value problems in the third part. Verification studies and parametric analysis appear throughout the book, as do both recent references and seminal ones from the past. Since the background of the authors is in solid mechanics and mathematical physics, the presented BEM formulations are valid for many areas such as civil engineering, geophysics, material science and all others concerning elastic wave propagation through inhomogeneous and heterogeneous media. The material presented in this book is suitable for self-study. The book is written at a level suitable for advanced undergraduates or beginning graduate students in solid mechanics, computational mechanics and fracture mechanics.

Strength of Structural Elements

Strength of Structural Elements PDF Author: Zbigniew Brzoska
Publisher: Elsevier
ISBN: 1483291693
Category : Technology & Engineering
Languages : en
Pages : 789

Get Book Here

Book Description
This volume describes engineering applications of the mechanics of deformable bodies and the elasticity theory relevant to them. It is concerned mainly with one-dimensional problems, which arise because either one of the dimensions of a body is much greater than the remaining two or the functions of two or three variables may be reduced to one variable.Problems of this type are of twofold importance. Firstly, many engineering problems can be described with sufficient accuracy just in this way. Secondly, unidimensional problems with known analytical solutions may serve either for testing numerical methods or for the analysis of fundamental concepts and phenomena, whose physical nature in three-dimensional approach might be obscured by the analytical-numerical aspect. The authors have confined themselves for the most part to the analysis of elastic behaviour of structures; however some attention is also given to elastic problems. A deterministic approach has been applied throughout the book. It will serve as a springboard for further work with stochastic approaches which are being increasingly used in engineering practice today.

Dynamic Fracture Mechanics

Dynamic Fracture Mechanics PDF Author: L. B. Freund
Publisher: Cambridge University Press
ISBN: 9780521629225
Category : Mathematics
Languages : en
Pages : 592

Get Book Here

Book Description
This volume focuses on the development and analysis of mathematical models of fracture phenomena.

Multiscale Solid Mechanics

Multiscale Solid Mechanics PDF Author: Holm Altenbach
Publisher: Springer Nature
ISBN: 3030549283
Category : Science
Languages : en
Pages : 509

Get Book Here

Book Description
This book provides an overview of the current of the state of the art in the multiscale mechanics of solids and structures. It comprehensively discusses new materials, including theoretical and experimental investigations their durability and strength, as well as fractures and damage