Compilation of Fatigue, Fatigue-crack Propagation, and Fracture Data for 2024 and 7075 Aluminum, Ti-6Al-4V Titanium, and 300M Steel. Volume 1: Description of Data and Data Storage on Magnetic Tape. Volume 2: Data Tape (7-track Magnetic Tape) PDF Download
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Languages : en
Pages : 206
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Languages : en
Pages : 206
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Category : Aeronautics
Languages : en
Pages : 716
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Category : Corrosion and anti-corrosives
Languages : en
Pages : 1020
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Category : Government reports announcements & index
Languages : en
Pages : 1122
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Category : Science
Languages : en
Pages : 1344
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Category : Government reports announcements & index
Languages : en
Pages : 1204
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Author: Robert G. Dubensky
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Category : Aluminum alloys
Languages : en
Pages : 36
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Author: Nasa Technical Reports Server (Ntrs)
Publisher: BiblioGov
ISBN: 9781289256135
Category :
Languages : en
Pages : 28
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The NASA Technical Reports Server (NTRS) houses half a million publications that are a valuable means of information to researchers, teachers, students, and the general public. These documents are all aerospace related with much scientific and technical information created or funded by NASA. Some types of documents include conference papers, research reports, meeting papers, journal articles and more. This is one of those documents.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721800650
Category :
Languages : en
Pages : 24
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Experimental test procedures for the development of fatigue crack growth rate data has been standardized by the American Society for Testing and Materials. Over the past 30 years several gradual changes have been made to the standard without rigorous assessment of the affect these changes have on the precision or variability of the data generated. Therefore, the ASTM committee on fatigue crack growth has initiated an international round robin test program to assess the precision and variability of test results generated using the standard E647-00. Crack growth rate data presented in this report, in support of the ASTM roundrobin, shows excellent precision and repeatability. Forth, Scott C. and Wright, Christopher W. and Johnston, William M., Jr. Langley Research Center NASA/TM-2005-213907, L-19163
Author: V. Weiss
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Category :
Languages : en
Pages : 44
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Fatigue crack growth data in the low and intermediate stress range obtained from tests on 2014-T6 aluminum, Ti-6Al-4V and 250 grade maraging steel, and similar data on 7075-T6 and 2024-T3 aluminum available from other investigators were analyzed. This analysis led to the formation of a new model for estimating the threshold stress intensity factor range, which involves the concept of reaching the theoretical strength at the tip of the crack when the critically stressed volume becomes so small that it can no longer contain a defect. Fatigue crack propagation experiments were also conducted in the range of 10 to the minus 7 power and 10 to the minus 9 power in./cycle (2.5 x 10 to the minus 9 power to 2.5 x 10 to the minus 11 power m/cycle) at room temperature and 375 Hz. 7050-T73651 aluminum and D6ac steel *HRC 50) were tested in room air and dry and wet argon, whereas 2014-T6 aluminum and annealed D6ac steel were tested in room air only.
