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Author : T. A. C. M. van der Put
Publisher :
ISBN 13 : 9781634859974
Total Pages : 91 pages
Book Rating : 4.8/5 (599 download)
Download or read book A New Fracture Mechanics Theory of Wood written by T. A. C. M. van der Put and published by . This book was released on 2011 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ian Smith
Publisher : John Wiley & Sons
ISBN 13 : 9780471487081
Total Pages : 248 pages
Book Rating : 4.4/5 (87 download)
Download or read book Fracture and Fatigue in Wood written by Ian Smith and published by John Wiley & Sons. This book was released on 2003-06-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Damage in wood is principally the result of fatigue. Fatigue is the process of progressive localised irreversible change in a material, and may culminate in cracks or complete fracture if conditions that initiated or propagated the process persist. Comprehensive understanding of fatigue and fracture in engineered wood components must be founded on a proper understanding of the damage processes. Although wood is the world's most widely used structural material, whether measured by volume consumed or value of finished construction, its behaviour is not well understood even by people who have spent their careers studying it. * What is known about failure processes comes almost entirely from empirical evidence collected for engineering purposes. * Hypotheses about behaviour of wood are based on macroscopic observation of specimens during and following tests. * With only limited resources and the need to obtain practical results quickly, the timber engineering research community has steered away from the scientific approach. * Forestry practices are changing and are known to influence characteristics of wood cells therefore there is a need to periodically reassess the mechanical properties of visually graded lumber the blackbox approach. Fatigue and Fracture of Wood examines the above issues from a scientific point of view by drawing on the authors' own research as well as previously published material. Unlike the empirical research, the book begins by examining growth of wood. It briefly examines its structure in relation to how trees grow, before assessing the fatigue and fracture of wood and discussing the scientific methods of modelling fatigue. * Covers from macro to micro behaviour of wood * Presents direct evidence of how wood fractures using Scanning Electron Microscopy * The first book to present a physically correct model for fracture in wood * Provides experimental proof of so-called memory in wood (i.e. dependence of fatigue behaviour on the loading sequence) * Givse practical illustrations of how theories and models can be applied in practice An essential resource for wood scientists/engineers, timber-engineering practitioners, and graduate students studying wood and solid mechanics.
Author : T. A. C. M. van der Put
Publisher :
ISBN 13 : 9781612092102
Total Pages : 0 pages
Book Rating : 4.0/5 (921 download)
Download or read book A New Fracture Mechanics Theory of Wood written by T. A. C. M. van der Put and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of the singularity approach of fracture mechanics is at its dead end because it is not possible to describe real failure at the crack boundary and to replace the real failure criteria by general energy conditions and the method remains empirical. Therefore the theoretical approach based on the elliptical flat crack has to be followed, leading to the possibility to derive and explain the empirical mixed "mode 1-11" interaction equation. Because it is shown that the singularity approach does not apply for wood, the theory is based on the flat elliptical crack. This book examines a new fracture mechanics theory of wood. Further discussed: the derivation of the power-law; the energy method of notched beams and of joints loaded perpendicular to the grain; the necessary rejection of the applied crack growth models and fictitious crack models and the Weibull size effect in fracture mechanics.
Author : Marcelo F. S. F. de Moura
Publisher : CRC Press
ISBN 13 : 1351106953
Total Pages : 236 pages
Book Rating : 4.3/5 (511 download)
Download or read book Wood Fracture Characterization written by Marcelo F. S. F. de Moura and published by CRC Press. This book was released on 2018-06-14 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood Fracture Characterization provides a guide to the application of modern fracture mechanics concepts to wood materials used in structural engineering, which commonly involve discontinuities and irregularities. The authors cover the tests, data reduction schemes and numerical methods devised for wood structural applications, based on cohesive zone analysis, and used to validate experimental-based methodologies. Five detailed Case Studies are included to link theory with engineering practice. This important new text explains the basics of fracture mechanics, and extends them as needed to cover the special behaviour of an anisotropic wood materials.
Author : Forintek Canada Corp. Western Forest Products Laboratory
Publisher : Forintek Canada Corporation
ISBN 13 :
Total Pages : 318 pages
Book Rating : 4.:/5 (45 download)
Download or read book Proceedings of the First International Conference on Wood Fracture, Banff, Alberta, 14-16 August 1978 written by Forintek Canada Corp. Western Forest Products Laboratory and published by Forintek Canada Corporation. This book was released on 1979 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Johnny E. Roberts
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (139 download)
Download or read book Application of the Theory of Fracture Mechanics to Reconstituted Wood Products written by Johnny E. Roberts and published by . This book was released on 1985 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhuoping Shao
Publisher : Springer
ISBN 13 : 9811090173
Total Pages : 232 pages
Book Rating : 4.8/5 (11 download)
Download or read book The Fracture Mechanics of Plant Materials written by Zhuoping Shao and published by Springer. This book was released on 2018-04-23 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the application of fracture mechanics and mesomechanics to the analysis of the fracture behaviors of wood and bamboo. It presents a range of research methods to study the fracture behaviors of wood and bamboo, taking into account their various fracture mechanisms resulting from differences in their macroscopic and microscopic structures. It combines theoretical analysis with experiments, as well as various mathematical tools and experimental approaches. The research methods are illustrated by simple schematic diagrams, and the results obtained are largely presented as tables and figures, helping to make the book concise and compact. As such, it provides a valuable guide to the development of new biocomposites that possess exceptional strength and toughness properties and successfully overcome the shortcomings of biomaterials.
Author : Anton David Pugel
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (45 download)
Download or read book Fracture Mechanics-based Failure Criterion for the Tensile Strength of Wood written by Anton David Pugel and published by . This book was released on 1986 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Surjya Kumar Maiti
Publisher : Cambridge University Press
ISBN 13 : 1316691837
Total Pages : 302 pages
Book Rating : 4.3/5 (166 download)
Download or read book Fracture Mechanics written by Surjya Kumar Maiti and published by Cambridge University Press. This book was released on 2015-10-01 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture mechanics studies the development and spreading of cracks in materials. The study uses two techniques including analytical and experimental solid mechanics. The former is used to determine the driving force on a crack and the latter is used to measure material's resistance to fracture. The text begins with a detailed discussion of fundamental concepts including linear elastic fracture mechanics (LEFM), yielding fracture mechanics, mixed mode fracture and computational aspects of linear elastic fracture mechanics. It explains important topics including Griffith theory of brittle crack propagation and its Irwin and Orowan modification, calculation of theoretical cohesive strength of materials through an atomic model and analytical determination of crack tip stress field. This book covers MATLAB programs for calculating fatigue life under variable amplitude cyclic loading. The experimental measurements of fracture toughness parameters KIC, JIC and crack opening displacement (COD) are provided in the last chapter.
Author : Zdenek P. Bazant
Publisher : Routledge
ISBN 13 : 1351447297
Total Pages : 640 pages
Book Rating : 4.3/5 (514 download)
Download or read book Fracture and Size Effect in Concrete and Other Quasibrittle Materials written by Zdenek P. Bazant and published by Routledge. This book was released on 2019-03-04 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture and Size Effect in Concrete and Other Quasibrittle Materials is the first in-depth text on the application of fracture mechanics to the analysis of failure in concrete structures. The book synthesizes a vast number of recent research results in the literature to provide a comprehensive treatment of the topic that does not give merely the facts - it provides true understanding. The many recent results on quasibrittle fracture and size effect, which were scattered throughout many periodicals, are compiled here in a single volume. This book presents a well-rounded discussion of the theory of size effect and scaling of failure loads in structures. The size effect, which is the most important practical manifestation of fracture behavior, has become a hot topic. It has gained prominence in current research on concrete and quasibrittle materials. The treatment of every subject in Fracture and Size Effect in Concrete and Other Quasibrittle Materials proceeds from simple to complex, from specialized to general, and is as concise as possible using the simplest level of mathematics necessary to treat the subject clearly and accurately. Whether you are an engineering student or a practicing engineer, this book provides you with a clear presentation, including full derivations and examples, from which you can gain real understanding of fracture and size effect in concrete and other quasibrittle materials.
Author : Robert Joseph Sanford
Publisher :
ISBN 13 :
Total Pages : 678 pages
Book Rating : 4.:/5 (318 download)
Download or read book Selected Papers on Foundations of Linear Elastic Fracture Mechanics written by Robert Joseph Sanford and published by . This book was released on 1997 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: SPIE Milestones are collections of seminal papers from the world literature covering important discoveries and developments in optics and photonics.
Author : Anton D. Pugel
Publisher :
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.:/5 (551 download)
Download or read book Fracture Mechanics-based Failure Criterion for the Tensile Strength of Wood written by Anton D. Pugel and published by . This book was released on 1986 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Forintek Canada Corp
Publisher :
ISBN 13 :
Total Pages : 75 pages
Book Rating : 4.:/5 (63 download)
Download or read book Fracture Mechanics and the Design of Wood Structures written by Forintek Canada Corp and published by . This book was released on 1981 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Taylor
Publisher : Elsevier
ISBN 13 : 0080554725
Total Pages : 307 pages
Book Rating : 4.0/5 (85 download)
Download or read book The Theory of Critical Distances written by David Taylor and published by Elsevier. This book was released on 2010-07-07 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Critical distance methods are extremely useful for predicting fracture and fatigue in engineering components. They also represent an important development in the theory of fracture mechanics. Despite being in use for over fifty years in some fields, there has never been a book about these methods – until now. So why now? Because the increasing use of computer-aided stress analysis (by FEA and other techniques) has made these methods extremely easy to use in practical situations. This is turn has prompted researchers to re-examine the underlying theory with renewed interest. The Theory of Critical Distances begins with a general introduction to the phenomena of mechanical failure in materials: a basic understanding of solid mechanics and materials engineering is assumed, though appropriate introductory references are provided where necessary. After a simple explanation of how to use critical distance methods, and a more detailed exposition of the methods including their history and classification, the book continues by showing examples of how critical distance approaches can be applied to predict fracture and fatigue in different classes of materials. Subsequent chapters include some more complex theoretical areas, such as multiaxial loading and contact problems, and a range of practical examples using case studies of real engineering components taken from the author’s own consultancy work. The Theory of Critical Distances will be of interest to a range of readers, from academic researchers concerned with the theoretical basis of the subject, to industrial engineers who wish to incorporate the method into modern computer-aided design and analysis. Comprehensive collection of published data, plus new data from the author's own laboratories A simple 'how-to-do-it' exposition of the method, plus examples and case studies Detailed theoretical treatment Covers all classes of materials: metals, polymers, ceramics and composites Includes fracture, fatigue, fretting, size effects and multiaxial loading
Author :
Publisher :
ISBN 13 : 9789178486717
Total Pages : 108 pages
Book Rating : 4.4/5 (867 download)
Download or read book Determination of Fracture Energy of Wood in Mode II written by and published by . This book was released on 1997 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method for determination of fracture energy of wood in forward shear (Mode II) has been developed. The report covers the theoretical background, numerical calculations, and experimental studies resulting in a standard proposal. The work has been carried out as an international collaboration within the RILEM TC 133 committee. The objective was to develop methods for determination of relevant fracture mechanics properties of wood. It was agreed at an early stage within the technical committee that the property to be measured was the fracture energy, and that the work should be concentrated on the shear failure (Mode II). The proposed specimen is a tapered beam which is loaded in bending and the load-deflection response is measured. By measuring the crack extension after the bending test is carried out, the fracture energy can be determined. The important feature of the specimen is that it enables stable crack propagation, a necessity when measuring fracture energy.
Author : Marcia Patton-Mallory
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (17 download)
Download or read book Fracture Mechanics written by Marcia Patton-Mallory and published by . This book was released on 1987* with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Svetlana Vasic
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (27 download)
Download or read book Applications of Fracture Mechanics to Wood written by Svetlana Vasic and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
