January 26, 2021

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Application of Fracture Mechanics to Cementitious Composites

Application of Fracture Mechanics to Cementitious Composites
Author : S.P. Shah
Publisher : Springer Science & Business Media
Release Date : 2012-12-06
Category : Science
Total pages :728
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Portland cement concrete is a relatively brittle material. As a result, mechanical behavior of concrete, conventionally reinforced concrete, prestressed concrete, and fiber reinforced concrete is critically influenced by crack propagation. It is, thus, not surprising that attempts are being made to apply the concepts of fracture mechanics to quantify the resistance to cracking in cementious composites. The field of fracture mechanics originated in the 1920's with A. A. Griffith's work on fracture of brittle materials such as glass. Its most significant applications, however, have been for controlling brittle fracture and fatigue failure of metallic structures such as pressure vessels, airplanes, ships and pipe lines. Considerable development has occurred in the last twenty years in modifying Griffith's ideas or in proposing new concepts to account for the ductility typical of metals. As a result of these efforts, standard testing techniques have been available to obtain fracture parameters for metals, and design based on these parameters are included in relevant specifications. Many attempts have been made, in the last two decades or so, to apply the fracture mechanics concepts to cement, mortar, con crete and reinforced concrete. So far, these attempts have not led to a unique set of material parameters which can quantify the resistance of these cementitious composites to fracture. No standard testing methods and a generally accepted theoretical analysis are established for concrete as they are for metals.

Application of Fracture Mechanics to Cementitious Composites

Application of Fracture Mechanics to Cementitious Composites
Author : S.P. Shah
Publisher : Springer Science & Business Media
Release Date : 1985-08-31
Category : Science
Total pages :728
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Portland cement concrete is a relatively brittle material. As a result, mechanical behavior of concrete, conventionally reinforced concrete, prestressed concrete, and fiber reinforced concrete is critically influenced by crack propagation. It is, thus, not surprising that attempts are being made to apply the concepts of fracture mechanics to quantify the resistance to cracking in cementious composites. The field of fracture mechanics originated in the 1920's with A. A. Griffith's work on fracture of brittle materials such as glass. Its most significant applications, however, have been for controlling brittle fracture and fatigue failure of metallic structures such as pressure vessels, airplanes, ships and pipe lines. Considerable development has occurred in the last twenty years in modifying Griffith's ideas or in proposing new concepts to account for the ductility typical of metals. As a result of these efforts, standard testing techniques have been available to obtain fracture parameters for metals, and design based on these parameters are included in relevant specifications. Many attempts have been made, in the last two decades or so, to apply the fracture mechanics concepts to cement, mortar, con crete and reinforced concrete. So far, these attempts have not led to a unique set of material parameters which can quantify the resistance of these cementitious composites to fracture. No standard testing methods and a generally accepted theoretical analysis are established for concrete as they are for metals.

Applications of Fracture Mechanics to Reinforced Concrete

Applications of Fracture Mechanics to Reinforced Concrete
Author : Alberto Carpinteri
Publisher : CRC Press
Release Date : 2018-10-08
Category : Architecture
Total pages :632
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This volume emphazises the most recent advances in fracture mechanics as specifically applied to steel bar reinforced concrete. Fracture mechanics has been applied to plain and fibre reinforced concrete with increasing success over recent years. This workshop extended these concepts to steel bar reinforced and pre-stressed concrete design. Particularly for high strength concrete, which is a very brittle material, and in the case of large structural members, the application of fracture mechanics appears to be very useful for improving the present design rules. The pre-eminent participants at the Turin workshop contributed extensive expert opinions in four selected areas for which a rational approach, using fracture mechanics, could introduce variations into the concrete design codes: size effects; anchorage and bond; minimum reinforcement for elements in flexure; and shear resistance. The 23 chapters logically address these themes and demonstrate the unique ability of fracture mechanics to capture all the experimentally observed characteristics. The book is primarily directed to the researchers in universities and institutions and will be of value to consultants and engineering companies.

Fracture Mechanics of Cementitious Materials

Fracture Mechanics of Cementitious Materials
Author : B. Cotterell,Y.W. Mai
Publisher : CRC Press
Release Date : 1995-12-28
Category : Architecture
Total pages :294
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The application of fracture mechanics to cementitious materials allows the investigation of many important factors relating to the durability of these materials. This new book provides a comprehensive and readable exposition of this subject and is written by two of the world's foremost experts.

Fracture Mechanics Applied to Brittle Materials

Fracture Mechanics Applied to Brittle Materials
Author : S. W. Freiman
Publisher : ASTM International
Release Date : 1979-01-01
Category : Brittleness
Total pages :232
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Fracture Mechanics of Concrete Structures

Fracture Mechanics of Concrete Structures
Author : Z.P. Bazant
Publisher : CRC Press
Release Date : 1992-05-14
Category : Architecture
Total pages :1021
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This conference is the first in a series of conferences dedicated to Fracture Mechanics of Concrete Structures. Due to the recent explosion of interest in research on fracture in concrete, the conference has brought together the world's leading researchers in fracture of concrete and this book contains the proceedings.

Fracture Mechanics

Fracture Mechanics
Author : E.E. Gdoutos
Publisher : Springer Science & Business Media
Release Date : 2006-03-30
Category : Technology & Engineering
Total pages :370
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New developments in the applications of fracture mechanics to engineering problems have taken place in the last years. Composite materials have extensively been used in engineering problems. Quasi-brittle materials including concrete, cement pastes, rock, soil, etc. all benefit from these developments. Layered materials and especially thin film/substrate systems are becoming important in small volume systems used in micro and nanoelectromechancial systems (MEMS and NEMS). Nanostructured materials are being introduced in our every day life. In all these problems fracture mechanics plays a major role for the prediction of failure and safe design of materials and structures. These new challenges motivated the author to proceed with the second edition of the book. The second edition of the book contains four new chapters in addition to the ten chapters of the first edition. The fourteen chapters of the book cover the basic principles and traditional applications, as well as the latest developments of fracture mechanics as applied to problems of composite materials, thin films, nanoindentation and cementitious materials. Thus the book provides an introductory coverage of the traditional and contemporary applications of fracture mechanics in problems of utmost technological importance. With the addition of the four new chapters the book presents a comprehensive treatment of fracture mechanics. It includes the basic principles and traditional applications as well as the new frontiers of research of fracture mechanics during the last three decades in topics of contemporary importance, like composites, thin films, nanoindentation and cementitious materials. The book contains fifty example problems and more than two hundred unsolved problems. A "Solutions Manual" is available upon request for course instructors from the author.

Fracture Mechanics

Fracture Mechanics
Author : Victor Li,Z. P. Bažant
Publisher : Unknown
Release Date : 1989
Category : Concrete
Total pages :298
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Fracture Mechanics of Concrete

Fracture Mechanics of Concrete
Author : Surendra P. Shah,Stuart E. Swartz,Chengsheng Ouyang
Publisher : John Wiley & Sons
Release Date : 1995-09-28
Category : Technology & Engineering
Total pages :588
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FRACTURE MECHANICS OF CONCRETE AND ROCK This book offers engineers a unique opportunity to learn, frominternationally recognized leaders in their field, about the latesttheoretical advances in fracture mechanics in concrete, reinforcedconcrete structures, and rock. At the same time, it functions as asuperb, graduate-level introduction to fracture mechanics conceptsand analytical techniques. Reviews, in depth, the basic theory behind fracture mechanics * Covers the application of fracture mechanics to compressionfailure, creep, fatigue, torsion, and other advanced topics * Extremely well researched, applies experimental evidence ofdamage to a wide range of design cases * Supplies all relevant formulas for stress intensity * Covers state-of-the-art linear elastic fracture mechanics (LEFM)techniques for analyzing deformations and cracking * Describes nonlinear fracture mechanics (NLFM) and the latestRILEM modeling techniques for testing nonlinear quasi-brittlematerials * And much more Over the past few years, researchers employing techniques borrowedfrom fracture mechanics have made many groundbreaking discoveriesconcerning the causes and effects of cracking, damage, andfractures of plain and reinforced concrete structures and rock.This, in turn, has resulted in the further development andrefinement of fracture mechanics concepts and tools. Yet, despitethe field's growth and the growing conviction that fracturemechanics is indispensable to an understanding of material andstructural failure, there continues to be a surprising shortage oftextbooks and professional references on the subject. Written by two of the foremost names in the field, FractureMechanics of Concrete fills that gap. The most comprehensive bookever written on the subject, it consolidates the latest theoreticalresearch from around the world in a single reference that can beused by students and professionals alike. Fracture Mechanics of Concrete is divided into two sections. In thefirst, the authors lay the necessary groundwork with an in-depthreview of fundamental principles. In the second section, theauthors vividly demonstrate how fracture mechanics has beensuccessfully applied to failures occurring in a wide array ofdesign cases. Key topics covered in these sections include: * State-of-the-art linear elastic fracture mechanics (LEFM)techniques for analyzing deformations and cracking * Nonlinear fracture mechanics (NLFM) and the latest RILEM modelingtechniques for testing nonlinear quasi-brittle materials * The use of R-Curves to describe cracking and fracture inquasi-brittle materials * The application of fracture mechanics to compression failure,creep, fatigue, torsion, and other advanced topics The most timely, comprehensive, and authoritative book on thesubject currently available, Fracture Mechanics of Concrete is botha complete instructional tool for academics and students instructural and geotechnical engineering courses, and anindispensable working resource for practicing engineers.

Fracture Toughness and Fracture Energy of Concrete

Fracture Toughness and Fracture Energy of Concrete
Author : Folker H. Wittmann
Publisher : Elsevier Science Limited
Release Date : 1986
Category : Technology & Engineering
Total pages :699
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The International Conference on Fracture Mechanics held in Lausanne in 1985 marked the end of the activities of the RILEM Technical Committee on Fracture Mechanics of Concrete (50-FMC). The first aim of the committee was achieved with the publication of a comprehensive state-of-the art report entitled Fracture Mechanics of Concrete (edited by F.H. Wittmann, Elsevier, 1983). At that time, research activities were concentrated essentially on the application of classical concepts of fracture mechanics to concrete. However, it has often been questioned if fracture mechanics can be applied to describe failure of concrete, and a new approach has been developed which is particularly suitable for finite element analysis. In this concept fracture toughness is replaced by fracture energy and thus the descending branch of the stress-strain diagram can be taken into consideration. As can be seen from the annotated bibliography covering the years 1982 to 1985 (included in this volume), many papers are still based on classical linear elastic fracture mechanics, while others have adopted the concept of fracture energy.

Fracture and Damage in Quasibrittle Structures

Fracture and Damage in Quasibrittle Structures
Author : Z.P. Bazant,Z. Bittnar,M. Jirasek,J. Mazars
Publisher : CRC Press
Release Date : 2004-01-14
Category : Architecture
Total pages :646
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Understanding of failure of quasibrittle materials is of paramount importance in many engineering fields. This subject has become a broad and important field of considerable mathematical complexity, with many competing models and unsolved problems. Attention in this volume focuses on concrete, rock, masonry, toughened ceramics, ice and other quasibrittle materials characterized by the development of large zones of cracking or other microstructural damage, and its localization into major fractures.

Fracture Resistance of Engineered Fiber Cementitious Composites and Implications to Structural Behavior

Fracture Resistance of Engineered Fiber Cementitious Composites and Implications to Structural Behavior
Author : Mohamed Maalej
Publisher : Unknown
Release Date : 1994
Category :
Total pages :129
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Phase Interaction in Composite Materials

Phase Interaction in Composite Materials
Author : S. A. Paipetis,George Papanicolaou
Publisher : Unknown
Release Date : 1992
Category : Composite materials
Total pages :598
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Cement-based Composites: Materials, Mechanical Properties and Performance

Cement-based Composites: Materials, Mechanical Properties and Performance
Author : A.M. Brandt
Publisher : CRC Press
Release Date : 1994-11-03
Category : Architecture
Total pages :470
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This book considers the properties and behaviour of cement-based materials from the point of view of composite science and technology. It deals particularly with newer forms of cement-based materials and also with a composite approach to conventional materials and their special properties. Emphasis is put on non-conventional reinforcement and design methods, problems at interfaces in the materials and on durability of structures made with them.

Fracture mechanics of concrete: Structural application and numerical calculation

Fracture mechanics of concrete: Structural application and numerical calculation
Author : George C. Sih,A. Ditomasso
Publisher : Springer Science & Business Media
Release Date : 2012-12-06
Category : Science
Total pages :276
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Concrete has traditionally been known as a material used widely in the construction of roads, bridges and buildings. Since cost effectiveness has always been one of the more important aspects of design, concrete, when reinforced and/or prestressed, is finding more use in other areas of application such as floating marine structures, storage tanks, nuclear vessel containments and a host of other structures. Because of the demand for concrete to operate under different loading and environmen tal conditions, increasing attention has been paid to study concrete specimens and structure behavior. A subject of major concern is how the localized segregation of the constituents in concrete would affect its global behavior. The degree of nonhomogeneity due to material property and damage. by yielding and/or cracking depends on the size scale and loading rate under consideration. Segregation or clustering of aggregates at the macroscopic level will affect specimen behavior to a larger degree than it would to a large structure such as a dam. Hence, a knowledge of concrete behavior over a wide range of scale is desired. The parameters governing micro-and macro-cracking and the techniques for evaluating and observing the damage in concrete need to be better understood. This volume is intended to be an attempt in this direction. The application of Linear Elastic Fracture Mechanics to concrete is discussed in several of the chapters.