Download or read book An Update of the Total Strain Version of Strainrange Partitioning written by GR. Halford and published by . This book was released on 1988 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated procedure has been developed for characterizing an alloy and predicting cyclic life by using the total-strain-range version of strainrange partitioning (TS-SRP). The principal feature of the update is a new procedure for determining the intercept of time-dependent elastic-strain-range-versus-cyclic-life lines. The procedure is based on an established relation between failure and the cyclic stress-strain response. The stress-strain response is characterized by empirical equations presented in this report. These equations were determined with the aid of a cyclic constitutive model. The procedures presented herein reduce the testing required to characterize an alloy. Failure testing is done only in the high-strain, short-life regime; cyclic stress-strain response is determined from tests conducted in both the high- and low-strain regimes. These tests are carried out to stability of the stress-strain hysteresis loop but not to failure. Thus both the time and costs required to characterize an alloy are greatly reduced. This procedure was evaluated and verified for two nickel-base superalloys, AF2-1DA and Inconel 718. The analyst can now predict cyclic life in the low-strain, long-life regime without having to conduct expensive failure tests in this regime or resort to questionable larger extrapolations.
Download or read book Ability of the Total Strain Version of Strainrange Partitioning to Characterize Thermomechanical Fatigue Behavior written by James F. Saltsman and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Update of the Total strain Version of SRP written by James F. Saltsman and published by . This book was released on 1985 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Update of the Total strain Version of SRP written by and published by . This book was released on 1985 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reliability Considerations for the Total Strain Range Version of Strainrange Partitioning written by Paul H. Wirsching and published by . This book was released on 1984 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1987 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Cycle Fatigue written by Harvey D. Solomon and published by ASTM International. This book was released on 1988 with total page 1289 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ability of the Total Strain Version of Strainrange Partitioning to Characterize Thermomechanical Fatigue Behavior written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-28 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strainrange partitioning (SRP) was originally developed on an inelastic strain basis for isothermal fatigue in the high-strain regime where the inelastic strainrange could be determined accurately. However, most power-generating equipment operates in the regime where the inelastic strains are small and difficult to determine with any degree of accuracy. This shortcoming led to the development of the total strain version of SRP (TS-SRP). Power-generating equipment seldom operates under isothermal conditions, and isothermal life prediction methods cannot be depended on to predict the lives of anisothermal cycles. To overcome this shortcoming, a method was proposed for extending TS-SRP to characterize anisothermal fatigue behavior and to predict the lives of thermomechanical fatigue (TMF) cycles using apppropriate anisothermal data. The viability of this method, referred to as TMF/TS-SRP, was demonstrated using TMF data for two high-temperature aerospace alloys. In this report, data from the literature are used to examine the ability of TMF/TS-SRP to characterize the failure and flow behavior of three low-strength, high-ductility alloys widely used for ground-based power-generating equipment. The three alloys are type 304 stainless steel, 1Cr-1Mo-0.25V steel, and 2.25Cr-1Mo steel. Because of the limited nature of the data, it was possible to evaluate the characterization, but not the predictive capability of TMF/TS-SRP. Saltsman, James F. and Halford, Gary R. Langley Research Center RTOP 505-63-5B...
Download or read book Thermo mechanical Fatigue Behavior of Materials written by Huseyin Sehitoglu and published by ASTM International. This book was released on 2000 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lewis Structures Technology 1988 written by and published by . This book was released on 1988 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1990 with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solder Joint Reliability written by John H. Lau and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solders have given the designer of modern consumer, commercial, and military electronic systems a remarkable flexibility to interconnect electronic components. The properties of solder have facilitated broad assembly choices that have fueled creative applications to advance technology. Solder is the electrical and me chanical "glue" of electronic assemblies. This pervasive dependency on solder has stimulated new interest in applica tions as well as a more concerted effort to better understand materials properties. We need not look far to see solder being used to interconnect ever finer geo metries. Assembly of micropassive discrete devices that are hardly visible to the unaided eye, of silicon chips directly to ceramic and plastic substrates, and of very fine peripheral leaded packages constitute a few of solder's uses. There has been a marked increase in university research related to solder. New electronic packaging centers stimulate applications, and materials engineering and science departments have demonstrated a new vigor to improve both the materials and our understanding of them. Industrial research and development continues to stimulate new application, and refreshing new packaging ideas are emerging. New handbooks have been published to help both the neophyte and seasoned packaging engineer.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1990 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engine Structures written by and published by . This book was released on 1988 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Failure of Materials in Mechanical Design written by Jack A. Collins and published by John Wiley & Sons. This book was released on 1993-10-06 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Failure of Materials in Mechanical Design: Analysis, Prediction, Prevention, 2nd Edition, covers the basic principles of failure of metallic and non-metallic materials in mechanical design applications. Updated to include new developments on fracture mechanics, including both linear-elastic and elastic-plastic mechanics. Contains new material on strain and crack development and behavior. Emphasizes the potential for mechanical failure brought about by the stresses, strains and energy transfers in machine parts that result from the forces, deflections and energy inputs applied.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
