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Determination Of Residual Stress Distributions In Autofrettaged Tubing A Discussion
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Book Synopsis Determination of Residual Stress Distributions in Autofrettaged Tubing: A Discussion by : Boaz Avitzur
Download or read book Determination of Residual Stress Distributions in Autofrettaged Tubing: A Discussion written by Boaz Avitzur and published by . This book was released on 1988 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a long-standing interest in developing a capability to predict the distribution of residual stresses in thick-wall tubes after internal pressurization--autofrettage. Since autofrettage involves partial or full plastic deformation of the tube, any computation of stress under pressure and, hence of the post-pressurization residual stresses, depends upon the assumed yield criterion. The latter may or may not include the material's strain hardening and/or strain softening capabilities. The most commonly used criteria are those named after Tresca and Mises. In the absence of exact solutions for plastic deformations, simplifying assumptions concerning the material's behavior are being made for the development of workable solutions, sometimes with the knowledge that certain physical principles are being violated. Many suggested solutions to the problem of autofrettage assume that Tresca's yield criterion prevails. Recent attempts to treat a 'modified Tresca's yield criterion' as Mises' yield criterion and/or attempts to add strain-softening (Bauschinger effect) to Tresca's yield criterion are questioned in this report. Keywords: Thick walled tubing, Pressurization, Autofrettage, Mises' yield criterion, Tresca's yield criterion, Elastic-plastic deformation, Retained stresses. (EDC).
Book Synopsis Stress Intensity Factors Caused by Residual Stress Fields in Autofrettaged Tubing by : A. Stacey
Download or read book Stress Intensity Factors Caused by Residual Stress Fields in Autofrettaged Tubing written by A. Stacey and published by . This book was released on 1988 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of residual stress distributions on the stress intensity factors developed in thick-walled cylinders containing line cracks is quantified. A stress intensity factor caused by the residual stress field, Kres, is evaluated using the superposition principle. This can then be superposed on the stress intensity factor associated with the applied loading to give an effective stress intensity factor controlling crack growth.
Book Synopsis Bauschinger Effect Design Procedures for Autofrettaged Tubes Including Material Removal and Sachs' Method by : Anthony Parker
Download or read book Bauschinger Effect Design Procedures for Autofrettaged Tubes Including Material Removal and Sachs' Method written by Anthony Parker and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Autofrettage is used to introduce advantageous residual stresses into pressure vessels and to enhance their fatigue lifetimes. The Bauschinger effect serves to reduce the yield strength in compression as a result of prior tensile plastic overload and can produce lower compressive residual hoop stresses near the bore than are predicted by.
Book Synopsis Residual Stress Measurements by : American Society for Metals
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:
Book Synopsis Residual Stress Redistribution Caused by Notches and Cracks in a Partially Autofrettaged Tube by : S. L. Pu
Download or read book Residual Stress Redistribution Caused by Notches and Cracks in a Partially Autofrettaged Tube written by S. L. Pu and published by . This book was released on 1981 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple method is provided for the computation of the redistribution of residual stresses and the stress intensity factors due to the introduction of notches and cracks in a partially autofrettaged tube. Numerical results of several crack and notch problems are obtained by the method of thermal simulation. These results are shown to be in excellent agreement with those obtained from the classical method of superposition. The new method based on thermal simulation is easier to apply and it avoids the singular stresses near the crack tip when the distribution crack face loading is used in the method of superposition.
Book Synopsis Rapid Method for Determining the Distribution of Residual Stresses in Pipes by : G. V. Shimov
Download or read book Rapid Method for Determining the Distribution of Residual Stresses in Pipes written by G. V. Shimov and published by . This book was released on 2018 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the method of longitudinal residual stress measurement on inner and outer pipe surface layers, which is used for calculation of the distribution of all residual stresses over the wall thickness. The method proposed is applicable in cases of stresses that are opposite in sign and exist inside and outside the pipe. Moreover, in accordance with the hypothesis of a parabolic circumferential and longitudinal distribution of residual stresses, this paper proposes the calculation method of stress distribution by measured ultimate stresses of the same sign inside and outside the pipe. The method is suitable for use in the express laboratory of a workshop that produces cold-formed seamless pipes.
Author :Society of Automotive Engineers. Subcommittee on Bibliography on Residual Stress Publisher : ISBN 13 : Total Pages :410 pages Book Rating :4.F/5 ( download)
Book Synopsis Bibliography on Residual Stress by : Society of Automotive Engineers. Subcommittee on Bibliography on Residual Stress
Download or read book Bibliography on Residual Stress written by Society of Automotive Engineers. Subcommittee on Bibliography on Residual Stress and published by . This book was released on 1954 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Practical Applications of Residual Stress Technology by : C. O. Ruud
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.
Book Synopsis Residual Stresses in Science and Technology by : Eckard Macherauch
Download or read book Residual Stresses in Science and Technology written by Eckard Macherauch and published by I R Publications, Limited. This book was released on 1987 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nordstjernen. Romaner og Noveller for Land og By, 1-4 by :
Download or read book Nordstjernen. Romaner og Noveller for Land og By, 1-4 written by and published by . This book was released on 1915 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Residual Stress Distribution Through the Thickness of Functionally Graded Material Ti/TiB2 by : Wei-Yan Lin
Download or read book Measurement of Residual Stress Distribution Through the Thickness of Functionally Graded Material Ti/TiB2 written by Wei-Yan Lin and published by . This book was released on 1999 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Measurement of Residual Stresses by : Society for Experimental Mechanics (U.S.)
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.
Book Synopsis New Graphical Procedures for the Determination of Residual Stresses in Plates and Thin-Walled Tubing by : J. M. Sistiaga
Download or read book New Graphical Procedures for the Determination of Residual Stresses in Plates and Thin-Walled Tubing written by J. M. Sistiaga and published by . This book was released on 1956 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis DETERMINATION OF RESIDUAL STRESSES IN THIN TUBES BY MEANS OF OPTICAL MEASUREMENTS. by : CARL G. ANDERSON
Download or read book DETERMINATION OF RESIDUAL STRESSES IN THIN TUBES BY MEANS OF OPTICAL MEASUREMENTS. written by CARL G. ANDERSON and published by . This book was released on 1936 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of the Bauschinger Effect on Residual Stress and Fatigue Lifetimes in Autofrettaged Thick-Walled Cylinders by :
Download or read book Influence of the Bauschinger Effect on Residual Stress and Fatigue Lifetimes in Autofrettaged Thick-Walled Cylinders written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work addresses the influence of Bauschinger effect upon residual stresses and associated fatigue lifetimes for pressurized, autofrettaged thick cylinders. The model employed allows for the variation with radius of Bauschinger Effect Factor (REF) throughout the autofrettaged tube since the percentage plastic strain, which determines BEF, will vary from a maximum value at the bore to zero at the elastic plastic interface. Accounting for BEF variability, it is demonstrated that the residual compressive hoop stress at the inner radius of the tube reaches a maximum value at the percentage overstrain level below which reversed yielding does not occur. Existing experimental residual stress measurements from a variety of sources are shown to support this thesis. This value of overstrain may serve to maximize crack initiation lifetime in autofrettaged thick cylinders. For a tube with significant heat checking and associated initial crack like defects, it is necessary to consider fatigue crack growth rates governed by a crack growth law such as Paris's Law. For a tube of radius ratio 2.0 and at a value of approximately 40 percent overstrain, slightly in excess of that for the onset of reversed yielding, the fatigue lifetime exhibits a maximum value. Fatigue lifetimes achieve a maximum value at overstrain levels in which yielding reaches 1.4 times bore radius and are almost constant thereafter. Furthermore, such extended overstrain leads to a small increase in residual stress at the outside diameter (OD), thus increasing R ratio at that location and reducing fatigue lifetime for crack growth originating at the OD. Existing experimental lifetime measurements are shown to require the inclusion of BEF to properly account for these observed lifetimes.
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1989-02 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
