Download or read book Fatigue Life Assessment of Steel Pressure Vessels with Varying Stress Concentration Residual Stress and Initial Cracks written by and published by . This book was released on 1996 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: A single-parameter representation of local stress range, initial crack size, and material yield strength is proposed for describing the intensity of the fatigue loading of a structural component. A logarithmic plot of single-parameter fatigue life results provides a single straight-line description of fatigue life behavior over a broad range of material, configuration, and loading conditions. Expressions for calculating the local stress range at the failure site are outlined, including effects of vessel and stress concentrator configuration, applied and overstrain residual stresses, and pressure applied to hole and crack surfaces. The single-parameter approach was used in a comparison of fatigue life results from 41 full-size hydraulic pressure cycle tests of cannon pressure vessels with 12 combinations of material strength, failure location, and applied and residual stresses. A log plot of mean results of the 12 data groups is well represented by a single straight line with a negative slope reasonably close to that predicted by fracture mechanics analysis. A significant outlier from the straight-line trend of the data is a useful indicator of cracking due to other than conventional mechanical fatigue. Two examples of an outlier from the trend of cannon pressure vessel data were confirmed by metallography to be caused by environmental cracking. A third outlier was related to preexisting initial cracks due to rapid machining. The effect of material yield strength on fatigue behavior can be simply and well represented using the single-parameter approach. The R2 correlation coefficient of a logarithmic straight-line fit to the 12 sets of cannon pressure vessel results increased from 0.81 to 0.86 upon inclusion of the effect of material strength.
Download or read book Fatigue and Fracture Mechanics written by Tina Louise Panontin and published by ASTM International. This book was released on 1999 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Fracture Research written by B.L. Karihaloo and published by Elsevier. This book was released on 2012-12-02 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture is a major cause of failure in metallic and non-metallic materials and structures. An understanding of the micro- and macro- mechanisms of fracture enables materials scientists to develop materials with high fracture resistance, which in turn helps engineers and designers to ensure the soundness and integrity of structures made from these materials. The International Congress on Fracture is held every four years and is an occasion to take stock of the major achievements in the broad field of fracture, to honour those who have made lasting contributions to this field, and to reflect on the future directions. ICF9 is published in six volumes covering the areas of:-- Failure Analysis, Remaining Life Assessment, Life Extension and Repair- Failure of Multiphase and Non-Metallic Materials- Fatigue of Metallic and Non-Metallic Materials and Structures- Theoretical and Computational Fracture Mechanics and New Directions- Testing and Characterization Methods, and Interfacial Fracture Mechanics- High Strain Rate Fracture and Impact Mechanics.
Download or read book Pressure Vessel Fracture Fatigue and Life Management written by S. K. Bhandari and published by . This book was released on 1992 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress Corrosion Cracking of A723 Steel Pressure Vessels Two Case Studies written by J. H. Underwood and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two separate investigations of apparent stress corrosion cracking of cannon tubes under field service conditions are described. The first investigation involved several tubes in which cracking initiated at the inner diameter surface due to the combination of cannon firing products and tensile residual stresses. Results of metallographic and fracture surface studies; residual stress measurements; fatigue life and material mechanical tests; and stress corrosion simulation tests of tube sections are presented and discussed. The second investigation involved two tubes in which apparent stress corrosion cracking occurred on the outer diameter surface due to the combination of an unknown substance, presumed to be a cleaning product, and tensile residual stress due to autofrettage of the tube. The critical requirements for stress corrosion cracking are discussed in general and in relation to the pressure vessels of the two investigations. Conclusions are drawn regarding design and service conditions for pressure vessels which will help prevent the occurrence of stress corrosion cracking. Keywords: Fatigue(Mechanics), Fatigue life, Fatigue tests(Mechanics).
Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue Fracture and Residual Stresses written by Sharif Rahman and published by . This book was released on 1998 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fifty-one technical papers from the July 1998 Conference are organized into six sections which discuss probabilistic fracture mechanics, fracture of welds, finite elements and constraint effects on fracture, failure prediction, residual stresses, and pipe fracture. They present novel analytical and
Download or read book Fitness for Service Stress Classification and Expansion Joints 2000 written by William John Koves and published by . This book was released on 2000 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Spectroscopy of Pressure Vessel Steel Fatigue Fracture Surface Films Formed in PWR Environments written by H. E. Hanninen and published by . This book was released on 1987 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1974 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue Fracture and High Temperature Design Methods in Pressure Vessels and Piping written by Kenneth K. Yoon and published by . This book was released on 1998 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises 49 papers (including two student papers) from the July 1998 Conference. Topics include reactor pressure vessel integrity assessment; piping and elbow and materials, welding and other aspects; elevated temperature design methods; fracture mechanics analysis; and fatigue and fracture analysi
Download or read book A Review of Fatigue Crack Growth of Pressure Vessel and Piping Steels in High temperature Pressurized Reactor grade Water written by W. H. Cullen and published by . This book was released on 1980 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue crack growth data sets, for pressure vessel and piping steels, in reactor-grade water environment have appeared in various reports and publications since about 1972. All of the results which have been published from 1972 through 1979 have been plotted and are presented in this report. Beginning with a discussion of the need for these data, and an explanation of the laboratory facilities which are required for this research, this report goes on to describe the overall trends which have evolved through consideration of the data sets and the conditions under which they were generated. A model for hydrogen assisted fatigue crack growth is described and applied to the pressurized water reactor type of environment. A complete listing of references is included in the report. (Author).
Download or read book Fatigue and Fracture 1997 written by and published by . This book was released on 1997 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recommendations for Fatigue Design of Welded Joints and Components written by A. F. Hobbacher and published by Springer. This book was released on 2015-12-23 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a basis for the design and analysis of welded components that are subjected to fluctuating forces, to avoid failure by fatigue. It is also a valuable resource for those on boards or commissions who are establishing fatigue design codes. For maximum benefit, readers should already have a working knowledge of the basics of fatigue and fracture mechanics. The purpose of designing a structure taking into consideration the limit state for fatigue damage is to ensure that the performance is satisfactory during the design life and that the survival probability is acceptable. The latter is achieved by the use of appropriate partial safety factors. This document has been prepared as the result of an initiative by Commissions XIII and XV of the International Institute of Welding (IIW).
Download or read book Metals Abstracts Index written by and published by . This book was released on 1996 with total page 1634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
