Download or read book A Survey Report on Fatigue in Cannon Bores written by Horace John Grover and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Problems in Prevention of Fatigue written by Horace John Grover and published by . This book was released on 1968 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Defense Metals Information Center conducted a brief survey of the present state of knowledge about fatigue with wide coverage to applications and with particular emphasis on means of early detection of fatigue damage. The survey has excluded consideration of reports of proprietary interest and of reports with security classification. However, it has included information from various branches of the U.S. Army, the U.S. Navy, the U.S. Air Force, and the National Aeronautics and Space Administration. The results of such considerations as have been possible are described in the following pages with the objectives of: (1) Delineating the current state of knowledge; (2) Indicating some of the current research toward increasing this knowledge; and (3) Pointing out areas where further work seems desirable. (Author).
Download or read book Fatigue Life Assessment of 155 MM M776 Cannon Tubes written by and published by . This book was released on 1999 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Benet Laboratories has the responsibility for safe fatigue life (durability) testing of cannon system components. This safe fatigue or service life evaluation is accomplished by conducting constant amplitude fatigue testing in a laboratory setting. One such cannon component that requires testing is the gun tube. After each tube has received the required number of live fire rounds necessary to generate initial cracking at the bore surface (also known as heat-check cracking), it is brought to the laboratory for final hydraulic fatigue testing. A sample size of two 155-mm M776 gun tubes was hydraulically fatigue tested to failure at Benet Laboratories to assist in determining the safe fatigue life for the weapon. This report contains the results of the fatigue tests conducted on the subject tubes, including material inspections, failure lives, and the resulting value for safe fatigue life of the XM776 gun tube.
Download or read book Bibliography on the Fatigue of Materials Components and Structures written by J. Y. Mann and published by Elsevier. This book was released on 2013-09-03 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bibliography on the Fatigue of Materials, Components and Structures, Volume 4: 1966 - 1969 presents the publications relevant to the study of materials science, particularly fatigue. The selection presents materials that cover fixed and mobile structures for use on land, sea and air; pressure vessels and nuclear reactors; mechanical components; and surgical implants. The publications presented tackle the developments in technological processes, evaluation of fatigue performance. The selection also covers the fundamental research on the subject and the development of theories. The book will be of great interest to students, researchers, and practitioner of materials science.
Download or read book D M I C Report written by Defense Metals Information Center and published by . This book was released on 1968 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue Life Assessment of 155 mm M284 Cannon Tubes written by and published by . This book was released on 1993 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Benet Laboratories has the responsibility for safe service life (fatigue) testing of cannon system components. This safe service life evaluation is accomplished by conducting constant amplitude fatigue tests using hydraulic oil as the pressurized medium, One such cannon component that requires testing is the gun tube. After each tube has received the required number of live fire rounds necessary to generate heat check cracking in the bore, it is brought to the laboratory for final hydraulic fatigue testing. A sample size of seven 155- mm M284 gun tubes was hydraulically fatigue tested to failure at Benet Laboratories to determine the safe service life for the weapon. This report contains the results of the fatigue tests conducted on the subject tubes, including material inspections, failure lives, and the resulting safe service life.
Download or read book Fatigue and Hydrogen Cracking in Cannons With Mechanical and Thermal Residual Stresses written by and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bauschinger-modified autofrettage residual stresses are used to improve the fatigue intensity factor model for fatigue life of cannon pressure vessels. Effects of yield strength and initial crack size are included with applied and residual stress. In an S-N description of cannon tube life that matches full-scale cannon fatigue test results with an R2 correlation of O.92. Thermally induced residual stress near the bore of a fired cannon is modeled by finite-difference calculations of temperature and mechanics calculations of transient thermal stress and resulting residual stress. Temperature-dependent thermal and physical properties are used, and the temperature distributions are validated by direct comparison with the known temperatures and the observed depths of microstructural damage and transformation in fired cannons. Calculations of fatigue life and yield pressure for a range of applied pressure, diameter ratio, yield strength, and percent autofrettage agree well with measurements frem full-scale cannons. Increased life is predicted for increases in yield strength and percent autofrettage, although the Bauschinger effect signiflcantiy reduces the amount of life Increase for autofrettage above 50%. The combined effects of mechanically Induced residual stress and thermally induced residual stress on cannon fatigue life are calculated, using an Increased initial crack size to account for thermal residual stress. Calculations of fatigue life are presented for a range of applied pressure and for selected gas temperatures.
Download or read book Army Logistician written by and published by . This book was released on 1973 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: The official magazine of United States Army logistics.
Download or read book Army Research and Development written by and published by . This book was released on 1970 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Subject Index to Unclassified ASTIA Documents written by Defense Documentation Center (U.S.) and published by . This book was released on 1960 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue and Fracture Mechanics written by Walter G. Reuter and published by ASTM International. This book was released on 2002-12-31 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the whole of Asia and the Pacific region, this text provides both an analytic overview and specific data for each of the 60 countries. Introductory chapters cover regional issues, including: a regional review with the year's trends, developments and key events' analysis of the threat of terrorism in the region; the effects of deflation on the economy; the water crisis and its impact on the poor; and the successes and failures of micro-credit in the region.
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts Index written by and published by . This book was released on 1979 with total page 1088 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 1990 with total page 248 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 Technical Abstract Bulletin written by and published by . This book was released on with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
