Download or read book Residual Stress Measurements of Unblasted and Sandblasted Mild Steel Specimens Using Diffraction Strain gage Hole Drilling and Electronic Speckle Pattern Interferometry ESPI Hole Drilling Methods written by Saskia Indah Lestari and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research are to measure residual stress in both unblasted and sandblasted mild steel specimens by using three different techniques: X-ray diffraction (XRD), strain-gage hole drilling (SGHD), and electronic speckle pattern interferometry (ESPI) hole drilling, and to validate the new ESPI hole drilling method by comparing its measurement results to those produced by the SGHD method. Both the XRD and SGHD methods were selected because they are accurate and well-verified approaches for residual stress measurements. The ESPI hole drilling technique is a new technology developed based on the SGHD technique, without the use of strain gage. This technique is incorporated into a new product referred to as the PRISM system, manufactured by Hytec, Incorporated, in Los Alamos, New Mexico. Each method samples a different volume of material at different depths into the surface. XRD method is especially different compared to the other two methods, since XRD only measures stresses at a depth very close to the surface (virtually zero depth). For this reason, no direct comparisons can be made between XRD and SGHD, as well as between XRD and ESPI hole drilling. Therefore, direct comparisons can only be made between SGHD and ESPI hole drilling methods.
Download or read book Proceedings of the 5th International Conference on Rehabilitation and Maintenance in Civil Engineering written by Stefanus Adi Kristiawan and published by Springer Nature. This book was released on 2022-09-01 with total page 1142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers presented at the 5th International Conference on Rehabilitation and Maintenance in Civil Engineering (ICRMCE 2021), held in Surakarta, Indonesia. The papers are grouped into sequential themes representing the structure of this book: o Part 1: Factors affecting building and infrastructure performance o Part 2: Testing and inspection of existing building and infrastructure o Part 3: Protection, maintenance, repair, and retrofitting of building and infrastructure o Part 4: Maintenance management of building and infrastructure o Part 5: Service life modelling of building and infrastructure o Part 6: Hazard mitigation o Part 7: Sustainability aspect in civil engineering design, process, modelling, maintenance, and rehabilitation Postgraduate students, researchers, and practitioners specializing and working in the area of protection, maintenance, repair, and retrofitting of civil engineering infrastructures will find this book very useful.
Download or read book Handbook of Measurement of Residual Stresses written by Society for Experimental Mechanics (U.S.) and published by . This book was released on 1996 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book ASTM E837 20 written by and published by . This book was released on 2020 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Residual Stresses by the Hole drilling Strain Gage Method written by and published by . This book was released on 1988 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Residual Stress Measurement and the Slitting Method written by Weili Cheng and published by Springer Science & Business Media. This book was released on 2007-02-24 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Standard Test Method for Determining Residual Stresses by the Hole drilling Strain gage Method1 written by and published by . This book was released on 2009 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASTM E837 13a written by and published by . This book was released on 2018 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Test Method for Determining Residual Stresses by the Hole drilling Strain gage Method written by and published by . This book was released on 2013 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Test Method for Determining Residual Stresses by the Hole drilling Strain gage Method written by American Society for Testing and Materials and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Residual Stress Measurement Uncertainties Using X ray Diffraction and Hole Drilling Via a UK Intercomparison Exercise written by Paul Grant and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Practical Applications of Residual Stress Technology written by C. O. Ruud and published by ASM International(OH). This book was released on 1991 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes papers on the effects of residual stress on materials properties. Measurement methods and techniques are covered in a number of papers that describe applications of X-ray diffraction, Barkhausen noise, ultrasonic velocity and neutron diffraction. Prediction of residual stresses described include applications to metal welding, forging and forming as well as ceramic matric composites and those developed by manufacturing processes.
Download or read book Methods of Residual Stress Measurement written by and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Residual Stress Measurements written by American Society for Metals and published by . This book was released on 1952 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Residual Stresses in a Mild Steel Tensile Specimen by X ray Diffraction Methods written by James Lawrence Baker and published by . This book was released on 1944 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Residual Stresses Using the Holographic Hole Drilling Technique written by Alberto Makino and published by . This book was released on 1994 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analytical Study of Residual Stress Measurement by the Hole drilling Method written by Abdolmajid Kabiri and published by . This book was released on 1983 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
