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Residual Stresses In Composite Materials

Residual Stresses in Composite Materials PDF

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Author: Mahmood M. Shokrieh
Publisher: Woodhead Publishing
ISBN: 0128188189
Size: 23.56 MB
Format: PDF, Mobi
Category : Technology & Engineering
Languages : en
Pages : 504
View: 5184


The residual stress is a common phenomenon in composite materials. They can either add to or significantly reduce material strength. Because of the increasing demand for high-strength, lightweight materials such as composites and their wide range of applications; it is critical that the residual stresses of composite materials are understood and measured correctly. The first edition of this book consists of thirteen chapters divided into two parts. The first part reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses. There are also additional chapters on using mathematical (analytical and numerical) methods for the calculation of residual stresses in composite materials. These include the simulated hole drilling method, the slitting/crack compliance method, measuring residual stresses in homogeneous and composite glass materials using photoelastic techniques, and modeling residual stresses in composite materials. The second part of the book discusses measuring residual stresses in different types of composites including polymer and metal matrix composites. The addition of nanoparticles to the matrix of polymeric composites as a new technique for the reduction of residual stresses is also discussed. In the Second Edition of this book, each of the original chapters of the first edition has been fully updated, taking into account the latest research and new developments. There are also five new chapters on the theoretical and experimental studies of residual stresses in the composite integrated circuits; residual stresses in additive manufacturing of polymers and polymer matrix composites; residual stresses in metal matrix composites fabricated by additive manufacturing; the eigenstrain based method for the incremental hole-drilling technique; and the estimation of residual stresses in polymer matrix composites using the digital image correlation technique. Residual Stresses in Composite Materials, Second Edition, provides a unique and comprehensive overview of this important topic and is an invaluable reference text for both academics and professionals working in the mechanical engineering, civil engineering, aerospace, automotive, marine, and sporting industries. Presents the latest developments on theoretical and experimental studies of residual stresses in composites Reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses Discusses residual stresses in the polymer matrix, metal matrix, and ceramic matrix composites Considers the addition of nanoparticles to the matrix as a new technique for reduction of residual stresses in polymeric composites Introduces the latest advancements of research on the residual stresses in additive-manufactured polymer and metal matrix composites

Determination Of Residual Stresses In Composite Materials Opredelenie Ostatoschykh Napryazhenii V Kompozitsionnykh Materiakakh

Determination of Residual Stresses in Composite Materials  Opredelenie Ostatoschykh Napryazhenii V Kompozitsionnykh Materiakakh   PDF

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Author: V. P. Severdenko
Publisher:
ISBN:
Size: 76.59 MB
Format: PDF, ePub
Category :
Languages : en
Pages : 13
View: 1357


The authors develop empirical methods for determining longitudinal stresses in fiber-reinforced materials when the history of their deformation is known. These methods are based on the peculiarities of the stress diagrams and the compression of composite materials. All three methods outlined yield very similar figures for residual stress, both in matrix and in the fibers. (Author).

Residual Stresses In The Manufacturing Of Composite Materials And Current Methods For Their Measurement

Residual Stresses in the Manufacturing of Composite Materials and Current Methods for Their Measurement PDF

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Author: Jaime A. Arbona
Publisher:
ISBN:
Size: 46.12 MB
Format: PDF, Docs
Category : Composite materials
Languages : en
Pages : 36
View: 126



Residual Stress Analysis In Polymer Materials Using The Hole Drilling Method Basic Principles And Applications

Residual stress analysis in polymer materials using the hole drilling method     basic principles and applications PDF

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Author: Arnaud Magnier
Publisher: kassel university press GmbH
ISBN: 3737606447
Size: 12.70 MB
Format: PDF, Mobi
Category :
Languages : en
Pages : 123
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Residual Stresses In And Around A Short Fiber In Metal Matrix Composites Due To Temperature Change

Residual Stresses In and Around a Short Fiber in Metal Matrix Composites Due To Temperature Change PDF

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Author: M. Taya
Publisher:
ISBN:
Size: 70.17 MB
Format: PDF, Kindle
Category : Composite materials
Languages : en
Pages : 16
View: 7609


Residual stresses in and around short fibers in metal matrix composites due to temperature change are evaluated. An analytical result for the residual stress in the fiber is obtained by use of Somigliana dislocations at the matrix-fiber interface. These dislocations are introduced to accommodate the misfit of the thermal expansion difference between fibers and the matrix. These dislocations are responsible for the residual stresses after the composite material is cooled down to room temperature.

Thermal Stresses In Severe Environments

Thermal Stresses in Severe Environments PDF

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Author: D. P. Hasselman
Publisher: Springer Science & Business Media
ISBN: 1461331560
Size: 56.34 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : en
Pages : 738
View: 1454


This volume of Thermal Stresses in ~~terials and Structures in Severe Thermal Environments constitutes the proceedings of an international conference held at Virginia Polytechnic Institute and State University in Blacksburg, Virginia, USA, on ~1arch 19, 20 and 21, 1980. The purpose of the conference was to bring together experts in the areas of heat transfer, theoretical and applied mechanics amd materials science and engineering, with a.common interest in the highly interdisciplinary nature of the thermal stress problem. It is the hope of the program chairmen that the resulting interac tion has led to a greater understanding of the underlying prin ciples of the thermal stress problem and to an improved design and selection of materials for structures subjected to high thermal stresses. The program chairmen gratefully acknowledge the financial assistance for the conference provided by the Department of Energy, the National Science Foundation, the Army Research Office and the Office of Naval Research as well as the Departments of Engineering Science and Mechanics and Materials Engineering at Virginia Poly technic Institute and State University. A number of professional societies also provided mailing lists for the program at no nominal cost The Associate Director, Mr. R. J. Harshberger and his staff at the Conference Center for Continuing Education at VPI and SU should be recognized especially for their coordination of the con ference activities, lunches and banquet. Provost John D. Wilson gave a most enlightening and provocative after-dinner speech.

Composite Materials

Composite Materials PDF

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Author:
Publisher: ASTM International
ISBN:
Size: 66.99 MB
Format: PDF, Docs
Category : Airplanes
Languages : en
Pages :
View: 7382



Residual Stresses

Residual Stresses PDF

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Author: A. Niku-Lari
Publisher: Elsevier
ISBN: 1483191001
Size: 17.67 MB
Format: PDF, Docs
Category : Science
Languages : en
Pages : 586
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Residual Stresses presents a collection of articles that provides information regarding the use of surface treatment systems. It discusses the developments in the technology and application of surface treatment. It addresses the influence of minor stresses on the performance of materials. Some of the topics covered in the book are the introduction to self-equilibrating stresses existing in materials, the stresses that form as a consequence of welding, the stresses made by machining, and the mechanical generation of self-stresses. The analysis of the stresses caused by thermal and thermochemical surface treatments is covered. The minor stresses in composite materials are discussed. The text describes the stresses in uranium and uranium alloys. The Trepan or ring core method, centre-hole method, and Sach's method are presented. A chapter of the volume is devoted to the measurement of residual stresses. Another section of the book focuses on the application of shot peened plates to residual stress distribution. The book will provide useful information to mechanics, engineers, students, and researchers.

Residual Stress And Its Effects On Fatigue And Fracture

Residual Stress and Its Effects on Fatigue and Fracture PDF

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Author: Anastasius Youtsos
Publisher: Springer Science & Business Media
ISBN: 1402053290
Size: 28.69 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : en
Pages : 234
View: 2063


The contents of this book have been grouped into three topic areas covering theoretical /numerical and experimental analyses of residual stress and its effects on fatigue and fracture. It details recent advances on its title topics by leading European experts and contains theoretical/numerical studies of high value backed by sound experimental data. It also provides experimental studies based on novel and verifiable testing methods.

Measurement Of Triaxial Residual Stresses In Composite Materials Using X Ray Diffraction

Measurement of Triaxial Residual Stresses in Composite Materials Using X Ray Diffraction PDF

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Author: R.H. Fenn
Publisher:
ISBN: 9780705813488
Size: 45.90 MB
Format: PDF, Docs
Category : Composite materials
Languages : en
Pages : 23
View: 749



Numerische Analyse Multistabiler Mehrschichtverbunde

Numerische Analyse multistabiler Mehrschichtverbunde PDF

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Author: Christoph Stehncken
Publisher: Apprimus Verlag
ISBN: 3863590082
Size: 75.54 MB
Format: PDF, Mobi
Category :
Languages : de
Pages : 212
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Introduction To The Dimensional Stability Of Composite Materials

Introduction to the Dimensional Stability of Composite Materials PDF

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Author: Ernest G. Wolff
Publisher: DEStech Publications, Inc
ISBN: 9781932078220
Size: 33.96 MB
Format: PDF, ePub, Mobi
Category : Technology & Engineering
Languages : en
Pages : 421
View: 7676


Comprehensive numerical presentation of dimensional instability in composites Quantitative analyses for predicting deformations in all types of composite materials Evaluation of mechanical, thermophysical, environmental stresses over time Unique aid in design of composites for specific application conditions--------------------------------------------------------------------------------This book is a comprehensive introduction to the quantitative analysis of dimensional instability in composite materials. It will aid in predicting deformations in a wide range of composite materials products and parts, under mechanical, thermophysical, and environmental stresses over time. Written by an internationally known expert on the analysis of composites, this new work brings together the best quantitative methods and currently known data for understanding how composites become unstable over time. The technical insights and information in this book offer a practical foundation for engineering composite materials with better stability and increased performance. From The Author''s Preface "Dimensional stability predictions [in composites] require knowledge of not only mechanical behavior but also thermophysical properties and the response to environmental conditions and time. This book attempts to aid in the numerical prediction of dimensional stability properties. It is necessary to quantify the behavior of composites for many reasons. Composites compete with plastics, metals, and ceramics in numerous applications, and designers must be able to justify increase in cost or complexity in terms of precisely defined performance benefits...Only a quantitative understanding of potential deformations [in composites] will lead to confidence in their use...This book combines a judicious use of experimental data, together with current theoretical models. It summarizes the scope of potential sources of instability in composites to help the engineer estimate the magnitude of possible deformations. The book also contributes to outlining methods for dealing with deformations. Experimental methods are offered and reviewed for those who (wisely) do not rely solely on existing data and theory." --------------------------------------------------------------------------------TABLE OF CONTENTS PrefaceAcknowledgments Chapter I: INTRODUCTION· What is Dimensional Stability? · Historical Notes· Magnitude: Units, Range, Engineering vs. True Strain, Dependence on Measurement Chapter II: DIMENSIONALLY STABLE MATERIALS· Introduction · Metals and Alloys · Glasses and Ceramics· Polymers· General Composites · Composite Constituents· Metal Matrix Composites· Ceramic Matrix Composites· Polymer Matrix Composites· Carbon Matrix Composites· Natural Composites· Hybrid Composites· Shape Memory Materials · Functionally Graded Materials· Nanomaterials· "In situ" Composites Chapter III: MECHANICAL EFFECTS· Introduction · Composite Notation· Micromechanics· Macromechanics of Laminates· Orthotropic Materials· Curvature · Thickness Effects· Poisson''s Ratio· Edge/End Effects· Residual Stresses· Plastic Deformation · Microyield Stress· References Chapter IV: ENVIRONMENTAL EFFECTS-TEMPERATURE· Introduction · CTE of Constituents · Micromechanics· Macromechanics· Volumetric Expansion· Resin Matrix Composites · Metal Matrix Composites· Ceramic Matrix Composites· Uniformity of CTE· Structural Forms· References Chapter V: ENVIRONMENTAL EFFECTS-MASS ABSORPTION· Introduction· Moisture Content· Moisture Distribution· Moisture Induced Strain · Coatings · CME Data Chapter VI: ENVIRONMENTAL EFFECTS-RADIATION · Introduction· Space Radiation· Radiation Effects on Micromechanical Properties· Radiation Effects on Thermophysical Properties· Nuclear Radiation · UV and Miscellaneous Radiation Chapter VII: ENVIRONMENTAL EFFECTS-TIME · Introduction · Temporal Stability · Relaxation of Residual Stresses· Physical Aging· Chemical Aging · Thermal Aging· Post Curing Chapter VIII: CREEP· Introduction· General Creep Behavior· Creep of Composite Constituents· Microstructure· Loading Conditions· Creep Mechanisms· Recovery and Relaxation· Damage Development· Prediction of Creep Strains Chapter IX: INTERNAL DAMAGE· Introduction· Thermally Induced Microcracking in FRPL· Mechanical (Stress) Cycling in PMC· Dimensional Changes due to Microcracking· Effects of Microcracking on Dimensional Stability, Effect on CTE, Thermal Cycling of PMC, Effects on Micromechanical Properties · Methods to Minimize Microcracking· Thermal Spikes· Reverse Thermal Effect· Thermal Cycling of MMC· Thermal Cycling of CMC· Microcracking and Moisture· Role of Fiber/Matrix Interface· Surface Damage Chapter X: COMBINED EFFECTS· Introduction · Thermoelasticity· Effect of Stress on Thermal Expansion· Hygrothermoelasticity · Effects of Stress on Mass Diffusivity· Stress and Moisture Effects· The Mechanosorptive Effect· Moisture Cycling· Combined Stress-Moisture-Damage Chapter XI: MEASUREMENT TECHNIQUES · Introduction· General Metrology· Microyield Strength (MYS)· Thermal Expansion (CTE)· Moisture Expansion (CME)· Temporal Stability· Creep· Damage Induced Dimensional Changes· Techniques for Combined Effects· Related Techniques Chapter XII: APPLICATIONS· Introduction · Dimensionally Stable Requirements· Selected Applications: Aircraft, Antenna Structures, Automotive, Biomedical, Cryogenics, Electronics, Fabrication, Flywheels, High Temperature, Instrument Components, Large Space Structures, Metering Functions, Microwave Components, Mirrors, Optical Support Structures, Radiation Environments, Radomes, Smart Materials Technology, Spacecraft Components, Structural/Infrastructure, Wind Turbines, General Design Methodology Index

Composite Materials Testing And Design

COMPOSITE MATERIALS  Testing and Design PDF

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Author:
Publisher: ASTM International
ISBN:
Size: 62.30 MB
Format: PDF, ePub, Docs
Category :
Languages : en
Pages :
View: 3215



X Ray Diffraction Studies Of Triaxial Residual Stresses In Composite Materials

X ray Diffraction Studies of Triaxial Residual Stresses in Composite Materials PDF

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Author: R. H. Fenn
Publisher:
ISBN:
Size: 65.69 MB
Format: PDF, ePub, Mobi
Category : Composite materials
Languages : en
Pages :
View: 5735



Review Of Progress In Quantitative Nondestructive Evaluation

Review of Progress in Quantitative Nondestructive Evaluation PDF

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Author: Donald O. Thompson
Publisher: Springer Science & Business Media
ISBN: 1461303834
Size: 55.76 MB
Format: PDF
Category : Technology & Engineering
Languages : en
Pages : 1166
View: 2264


These Proceedings, consisting of Parts A and B, contain the edited versions of most of the papers presented at the annual Review of Progress in Quantitative Nondestructive Evaluation held at the University of Washington, Seattle on July 30 to August 4, 1995. The Review was organized by the Center for NDE at Iowa State University, in cooperation with the Ames Laboratory of the USDOE, the American Society of Nondestructive Testing, the Department of Energy, the National Institute of Standards and Technology, the Federal Aviation Administration, the National Science Foundation IndustryiUniversity Cooperative Research Centers, and the Working Group in Quantitative NDE. This year's Review of Progress in QNDE was attended by approximately 450 participants from the US and many foreign countries who presented over 375 papers. The meeting was divided into 36 sessions with as many as four sessions running concurrently. The Review covered all phases of NDE research and development from fundamental investigations to engineering applications or inspection systems, and it included many important methods of inspection science from acoustics to x-rays. In the last several years, the Review has stabilized at about its current size. Most participants seem to agree it is large enough to permit a full-scale overview of the latest developments but still small enough to retain the collegial atmosphere which has marked the Review since its inception. The Proceedings are structured in a format to reflect the organization of the Review itself, producing a more logical organization for both the meeting and the present volume.

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