Download or read book Prediction of Fracture Toughness Stress corrosion Cracking Thresholds and Corrosion Fatigue Thresholds in Iron base Materials written by Peter Gerald Marsh and published by . This book was released on 1994 with total page 278 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 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys written by Benjamin Floyd Brown and published by . This book was released on 1972 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Structural Integrity Cyclic loading and fatigue written by I. Milne and published by Elsevier. This book was released on 2003 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1974 with total page 808 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 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue and Corrosion Fatigue Crack Growth of 4340 Steel at Various Yield Strengths written by E. J. Imhof and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The useful life of steel structures that contain crack-like defects and that are subjected to cyclic loads in an aggressive environment is determined primarily by the time required for the defects to grow from subcritical dimensions to the critical size at which unstable fracture occurs. For these structures, subcritical crack growth is caused either by fatigue or by corrosion fatigue. Thus, as part of a long-range program to establish the necessary relations for predicting the corrosion-fatigue behavior of structural steels, the stress-corrosion-cracking susceptibility and the corrosion fatigue-crack-growth rates at 6 cpm of 4340 Steel heat-treated to yield strengths of 130, 180, and 220 ksi (896, 1241, and 1571 MN/m2) were investigated in a 3 percent solution of sodium chloride. The results were analyzed by using linear-elastic fracture mechanics methods and were compared with fatigue-crack-propagation data obtained in a room-temperature air environment. The results showed that the threshold stress-intensity factor below which crack growth does not occur in statiscally loaded specimens decreased with increased yield strength. The fatigue-crack-growth rates per cycle in the steels investigated in an air environment and below KIscc in the room-temperature solution of sodium chloride can be represented by the equation dadN=D(t)(?KI)n where n was equal to 2.7. The function D(t), which is a measure of the corrosion-fatigue susceptibility of the material, increased with increased yield strength. Fatigue-crack-growth rates below KIscc were accelerated by a factor of 2 when the 130-ksi yield-strength material was tested at 6 cpm in the sodium chloride solution. Under identical test conditions, the corrosion fatigue-crack-growth rates in the 180-ksi yield-strength material were five to six times higher than the fatigue crack-growth rates in air environment. Corrosion-fatigue crack-growth data below KIscc were not obtained for the 220-ksi yield-strength material because of the high susceptibility of this material to the test environment (KIscc=10.5ksiin., or 11.5 MN/m3/2).
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 ASM Handbook written by ASM International. Handbook Committee and published by . This book was released on 1990 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes cover the properties, processing, and applications of metals and nonmetallic engineering materials. They are designed to provide the authoritative information and data necessary for the appropriate selection of materials to meet critical design and performance criteria.
Download or read book Japanese Science and Technology written by and published by . This book was released on 1986 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Fatigue in Engineering written by Henry O. Fuchs and published by . This book was released on 1980-06-20 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied Optimal Design Mechanical and Structural Systems Edward J. Haug & Jasbir S. Arora This computer-aided design text presents and illustrates techniques for optimizing the design of a wide variety of mechanical and structural systems through the use of nonlinear programming and optimal control theory. A state space method is adopted that incorporates the system model as an integral part of the design formulations. Step-by-step numerical algorithms are given for each method of optimal design. Basic properties of the equations of mechanics are used to carry out design sensitivity analysis and optimization, with numerical efficiency and generality that is in most cases an order of magnitude faster in digital computation than applications using standard nonlinear programming methods. 1979 Optimum Design of Mechanical Elements, 2nd Ed. Ray C. Johnson The two basic optimization techniques, the method of optimal design (MOD) and automated optimal design (AOD), discussed in this valuable work can be applied to the optimal design of mechanical elements commonly found in machinery, mechanisms, mechanical assemblages, products, and structures. The many illustrative examples used to explicate these techniques include such topics as tensile bars, torsion bars, shafts in combined loading, helical and spur gears, helical springs, and hydrostatic journal bearings. The author covers curve fitting, equation simplification, material properties, and failure theories, as well as the effects of manufacturing errors on product performance and the need for a factor of safety in design work. 1980 Globally Optimal Design Douglass J. Wilde Here are new analytic optimization procedures effective where numerical methods either take too long or do not provide correct answers. This book uses mathematics sparingly, proving only results generated by examples. It defines simple design methods guaranteed to give the global, rather than any local, optimum through computations easy enough to be done on a manual calculator. The author confronts realistic situations: determining critical constraints; dealing with negative contributions; handling power function; tackling logarithmic and exponential nonlinearities; coping with standard sizes and indivisible components; and resolving conflicting objectives and logical restrictions. Special mathematical structures are exposed and used to solve design problems. 1978
Download or read book Aging of U S Air Force Aircraft written by National Research Council and published by National Academies Press. This book was released on 1997-09-30 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the aircraft that form the backbone of the U.S. Air Force operational fleet are 25 years old or older. A few of these will be replaced with new aircraft, but many are expected to remain in service an additional 25 years or more. This book provides a strategy to address the technical needs and priorities associated with the Air Force's aging airframe structures. It includes a detailed summary of the structural status of the aging force, identification of key technical issues, recommendations for near-term engineering and management actions, and prioritized near-term and long-term research recommendations.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environment Enhanced Fatigue Crack Propagation in Metals Inputs to Fracture Mechanics Life Prediction Models written by Richard P. Gangloff and published by . This book was released on 1993 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Materials Processing written by and published by Newnes. This book was released on 2014-04-07 with total page 5485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Materials Processing, Thirteen Volume Set provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing universe. It provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products. Assisting scientists and engineers in the selection, design, and use of materials, whether in the lab or in industry, it matches the adaptive complexity of emergent materials and processing technologies. Extensive traditional article-level academic discussion of core theories and applications is supplemented by applied case studies and advanced multimedia features. Coverage encompasses the general categories of solidification, powder, deposition, and deformation processing, and includes discussion on plant and tool design, analysis and characterization of processing techniques, high-temperatures studies, and the influence of process scale on component characteristics and behavior. Authored and reviewed by world-class academic and industrial specialists in each subject field Practical tools such as integrated case studies, user-defined process schemata, and multimedia modeling and functionality Maximizes research efficiency by collating the most important and established information in one place with integrated applets linking to relevant outside sources
Download or read book Japanese Science and Technology 1983 1984 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch and published by . This book was released on 1985 with total page 1080 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 1981 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
