Measurements of Residual Stresses and Surface Topography Using Optical Techniques PDF Download

Author: Baishi Wang
Publisher:
ISBN:
Category : Interferometry
Languages : en
Pages : 222

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Book Description

Author: Ken J Stout
Publisher: Elsevier
ISBN: 0080542980
Category : Science
Languages : en
Pages : 309

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Book Description
This fully illustrated text explains the basic measurement techniques, describes the commercially available instruments and provides an overview of the current perception of 3-D topography analysis in the academic world and industry, and the commonly used 3-D parameters and plots for the characterizing and visualizing 3-D surface topography. It also includes new sections providing full treatment of surface characterization, filtering technology and engineered surfaces, as well as a fully updated bibliography.

Author: Ulf Persson
Publisher:
ISBN:
Category :
Languages : en
Pages : 14

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Book Description

Author: Weili Cheng
Publisher: Springer Science & Business Media
ISBN: 0387390308
Category : Science
Languages : en
Pages : 212

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Book Description
This book provides complete coverage of the slitting method. It details new results in analysis, computation, and estimation and discusses different roles of residual stresses from the fracture mechanics perspective. It provides detailed formulations and examples of compliance functions, weighted least squares fit and convergence test in stress estimation, and computer programs to facilitate the implementation of the slitting method.

Author: Society for Experimental Mechanics (U.S.)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 264

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Book Description
With contributions from 24 authorities from around the world, this handbook provides the most authoritative reference resource available on the impact of residual stresses on mechanical properties of materials and structures. You'll find detailed descriptions of a full range of measuring techniques, including hole drilling, layer removal, sectioning, X-ray diffraction, neutron diffraction, and ultrasonic methods. A variety of case studies which illustrate use of specific techniques are included to facilitate your understanding. Design and structural engineers, metallurgists, and material scientists will find a wealth of valuable information covering recent developments in residual stress measuring techniques, with guidelines provided for selecting the right measuring strategy for each specific application, and many helpful tips for improving quality control.

Author: E. Mainsah
Publisher: Springer Science & Business Media
ISBN: 1475733690
Category : Technology & Engineering
Languages : en
Pages : 470

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Book Description
Metrology and Properties of Engineering Surfaces provides in a single volume a comprehensive and authoritative treatment of the crucial topics involved in the metrology and properties of engineering surfaces. The subject matter is a central issue in manufacturing technology, since the quality and reliability of manufactured components depend greatly upon the selection and qualities of the appropriate materials as ascertained through measurement. The book can in broad terms be split into two parts; the first deals with the metrology of engineering surfaces and covers the important issues relating to the measurement and characterization of surfaces in both two and three dimensions. This covers topics such as filtering, power spectral densities, autocorrelation functions and the use of Fractals in topography. A significant proportion is dedicated to the calibration of scanning probe microscopes using the latest techniques. The remainder of the book deals with the properties of engineering surfaces and covers a wide range of topics including hardness (measurement and relevance), surface damage and the machining of brittle surfaces, the characterization of automobile cylinder bores using different techniques including artificial neural networks and the design and use of polymer bearings in microelectromechanical devices. Edited by three practitioners with a wide knowledge of the subject and the community, Metrology and Properties of Engineering Surfaces brings together leading academics and practitioners in a comprehensive and insightful treatment of the subject. The book is an essential reference work both for researchers working and teaching in the technology and for industrial users who need to be aware of current developments of the technology and new areas of application.

Author: Tom Proulx
Publisher: Springer Science & Business Media
ISBN: 146140228X
Category : Technology & Engineering
Languages : en
Pages : 412

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Book Description
Optical Measurements, Modeling, and Metrology represents one of eight volumes of technical papers presented at the Society for Experimental Mechanics Annual Conference on Experimental and Applied Mechanics, held at Uncasville, Connecticut, June 13-16, 2011. The full set of proceedings also includes volumes on Dynamic Behavior of Materials, Mechanics of Biological Systems and Materials, Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials; MEMS and Nanotechnology; Experimental and Applied Mechanics, Thermomechanics and Infra-Red Imaging, and Engineering Applications of Residual Stress.

Author: Arthur Henry Guenther
Publisher: ASTM International
ISBN: 9780803107090
Category : Science
Languages : en
Pages : 200

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Book Description

Author: Thomas M. Holden
Publisher: Materials Research Forum LLC
ISBN: 1945291176
Category : Technology & Engineering
Languages : en
Pages : 638

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Book Description
This book presents the proceedings of the International Conference on Residual Stresses 10 and is devoted to the prediction/modelling, evaluation, control, and application of residual stresses in engineering materials. New developments, on stress-measurement techniques, on modelling and prediction of residual stresses and on progress made in the fundamental understanding of the relation between the state of residual stress and the material properties, are highlighted. The proceedings offer an overview of the current understanding of the role of residual stresses in materials used in wide ranging application areas.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This manual has been assembled as a ready reference source for the engineer who must measure residual stresses. Although the literature has abundant information on the individual methods of residual stress measurement, this manual is unique in that most of the useful methods have been selected, described, classified, and compared.Methods of measuring residual stress may be classified as mechanical, physical, or chemical. Mechanical methods that are most widely used involve the machining of the part to release the residual stresses. These methods are considered in detail and occupy the bulk of this manual.Of the physical methods, x-ray diffraction has many advantages in solving some residual stress problems. One of the major advantages is that it is completely nondestructive if only surface residual stresses are desired. This method is briefly described and its limitations discussed so that the investigator may choose this method if it fulfills his needs. The method and the necessary techniques have been covered in detail in Ref. 1.Of the chemical methods, the stress corrosion cracking technique seems to be the most useful. This cracking is known to be dependent upon the surface tensile stress level. At present it is only a qualitative measure of the stress, but perhaps at some future date, quantitative chemical methods may be developed.To make residual stress measurements, the engineer must: 1Select the most appropriate method. 2Completely familiarize himself with the theory behind the method chosen. 3Learn the techniques of measurement used by previous investigators.Note that the word "method" is reserved to mean the individual category of stress analysis, and that "technique" applies to the experimental procedure.The choice of the method depends to a large extent upon the geometry of the specimen, the precision desired, the type and location of the stress it is desired to measure, and the equipment available. The numerous mechanical methods available are classified into four groups. These are: the parting-out method, the layer removal method, the boring and turning method, and the hole drilling method. The nonmechanical x-ray method is briefly discussed here for comparison.Once the method has been selected, measurements should not be taken and their values blindly substituted into equations. Each term in the expressions relating the deformation to the residual stress should be completely understood and the sign convention used for these terms should be well known. For this reason, a derivation for each method has been included with the necessary assumptions and limitations. Following a study of these equations, it may be decided whether some automatic or computer technique should be used. In some instances in which a large number of specimens are to be analyzed, the computer technique offers obvious advantages. At this point, it is also necessary to determine the precision with which the stresses are to be determined. This, of course, can be related directly to the precision used in the measurement of the deformation changes and the original dimensions of the specimen itself.The correct choice of the many and varied techniques for measuring dimensional changes used in the determination of residual stress is extremely important if accurate and reproducible data are to be obtained. Machining stress introduced in dissecting must not be larger or more significant than the stress that is to be measured. The techniques used to remove material are numerous, and some of the better currently used techniques are considered. The specific techniques associated with any particular method are included and special fixtures and procedures are described and sample calculations are given.