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Author : Robert Edward Maringer
Publisher : Unknown
Page : 36 pages
File Size : 40,7 Mb
Release : 1966
Category : Stability
ISBN : UOM:39015095155829
Author : F. C. Holden
Publisher : Unknown
Page : 48 pages
File Size : 43,8 Mb
Release : 1964
Category : Stability
ISBN : UOM:39015095155472
Author : R. E. Maringer
Publisher : Unknown
Page : 22 pages
File Size : 46,8 Mb
Release : 1971
Category : Materials
ISBN : UOM:39015095156231
The point of the memorandum is to emphasize the danger in accepting engineering data at face value. The definition of units used in the measurement of engineering parameters related to solid materials is discussed. A major portion of the memorandum is concerned with micromechanical strength parameters in solids such as yield strength, elastic limit, and proportional limit. Variation of elastic 'constants' in ordinary engineering materials under various conditions is discussed. A final section of the memorandum discusses variation of the thermal expansion coefficient in materials. (Author).
Author : R. H. Ernst,D. N. Williams,H. R. Ogden
Publisher : Unknown
Page : 12 pages
File Size : 47,9 Mb
Release : 1964
Category : Titanium
ISBN : UOM:39015095155613
A brief study of delayed fracture in a seam-welded titanium panel is summarized in this memorandum. Examination of the fracture surface with electron microscopy showed that the material cleaved, failing in a brittle manner. Although the nature of the embrittlement was not clearly defined, titanium hydride phase was suspected as a prime contributor to failure. Even though the hydrogen content of the titanium was only 65 ppm, hydride embrittlement was thought to have occurred from precipitation of hydride platelets on crystal planes oriented normal to welding stresses. Other work, briefly discussed in the memorandum, has confirmed that hydride platelets in titanium can be oriented by stress and that tensile ductility of Zircaloy (which behaves similarly with respect to hydrogen, to titanium) depends upon hydride orientation. Stress-relief annealing of welded titanium structures is recommended wherever possible to minimize embrittlement by stress-oriented hydrides. (Author).
Author : L. R. Jackson
Publisher : Unknown
Page : 50 pages
File Size : 48,6 Mb
Release : 1964
Category : Plates (Engineering)
ISBN : UOM:39015095155761
This memorandum supplements and augments information presented in DMIC Memorandum 178 (AD-422 463). In the present report, Neuber's stress equations are rewritten entirely in rectangular coordinates. In addition, numerical results have been extended to include the stress distribution around an indefinitely sharp crack. It is also shown that the stress function used in a British work for an indefinitely sharp crack yielded identical numerical results, even though the stress function was of a different type than that employed by Neuber. The Von Mises relation was chosen to delineate the area around a crack in which plastic flow is occurring. The numerical tables in this memorandum give values for the function of plane stress as well as one possible interpretation of plane strain. Values of the hydrostatic stress variant are also given for both plane stress and plane strain. (Author).
Author : J. M. Ferguson
Publisher : Unknown
Page : 22 pages
File Size : 50,8 Mb
Release : 1968
Category : Titanium
ISBN : UOM:39015095155894
Experimental programs concerned with the oxidation of titanium and its alloys are reviewed and results compared with those predicted by theory. Wagner-Hauffe theory is used as the primary basis for comparison, and its inconsistencies are pointed out. Fifteen binary alloy systems involving titanium are covered, as well as a few ternary and commercial alloys. A short section discusses the effects of oxygen or nitrogen contamination on the mechanical properties of titanium and its alloys. (Author).
Author : Anonim
Publisher : Unknown
Page : 408 pages
File Size : 53,5 Mb
Release : 1971
Category : Naval research
ISBN : UIUC:30112075632411
Author : Anonim
Publisher : Unknown
Page : 1388 pages
File Size : 45,5 Mb
Release : 1971
Category : Government publications
ISBN : OSU:32437010583744
Author : Robert Melvin Evans
Publisher : Unknown
Page : 14 pages
File Size : 51,8 Mb
Release : 1964
Category : Porosity
ISBN : UOM:39015095155605
Porosity in fusion welds in titanium has been encountered to some extent in all programs using this joining method. While measures to control cleanliness and to employ good welding techniques have successfully reduced the occurrence of porosity, specific indentification of the various causes of porosity is still lacking. Some factors suspected of causing porosity in titanium welds are hydrogen, cleanliness of joint area, contamination in filler wire, and welding procedures and techniques.
Author : Mark A. Ealey,Roger A. Paquin,Thomas B. Parsonage
Publisher : SPIE-International Society for Optical Engineering
Page : 404 pages
File Size : 49,6 Mb
Release : 1997
Category : Technology & Engineering
ISBN : STANFORD:36105111952599
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Author : Anonim
Publisher : Unknown
Page : 718 pages
File Size : 54,8 Mb
Release : 1960
Category : Metal-work
ISBN : UFL:31262094026621
Author : Battelle Memorial Institute
Publisher : Unknown
Page : 786 pages
File Size : 41,8 Mb
Release : 1967
Category : Science
ISBN : UOM:39015021240679
Author : Anonim
Publisher : Unknown
Page : 848 pages
File Size : 43,9 Mb
Release : 1967
Category : Science
ISBN : CORNELL:31924057185591
Author : Anonim
Publisher : Unknown
Page : 722 pages
File Size : 40,7 Mb
Release : 1976-02
Category : Nuclear energy
ISBN : PSU:000047758872
Author : R. E. Maringer,M. M. Cho,F. C. Holden
Publisher : Unknown
Page : 264 pages
File Size : 55,6 Mb
Release : 1968
Category : Electronic
ISBN : STANFORD:36105024699378