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Author : Ira R. Schwartz
Publisher : Unknown
Page : 474 pages
File Size : 51,6 Mb
Release : 1971
Category : Sonic boom
ISBN : STANFORD:36105113767367
Prediction methods for sonic boom generation and propagation with overpressure minimization in supersonic transport design and operation.
Author : Ira R. Schwartz
Publisher : Unknown
Page : 460 pages
File Size : 49,9 Mb
Release : 1971
Category : Sonic boom
ISBN : NASA:31769000654288
Author : Ira R. Schwartz
Publisher : Unknown
Page : 208 pages
File Size : 47,5 Mb
Release : 1968
Category : Sonic boom
ISBN : UCAL:B4317544
Proceedings of a conference on sonic boom reduction in supersonic transport flight. Topics include shock wave propagation and refraction, prediction methods for acoustic attenuation, and aerodynamic engineering aspects.
Author : Ira R. Schwartz
Publisher : Unknown
Page : 472 pages
File Size : 48,6 Mb
Release : 1971
Category : Sonic boom
ISBN : UCAL:B3377493
Prediction methods for sonic boom generation and propagation with overpressure minimization in supersonic transport design and operation.
Author : Anonim
Publisher : Unknown
Page : 208 pages
File Size : 41,5 Mb
Release : 1968
Category : Electronic
ISBN : NASA:31769000653686
Author : A. Richard Seebass
Publisher : Unknown
Page : 0 pages
File Size : 49,9 Mb
Release : 1967
Category : Sonic boom
ISBN : LCCN:67060090
Author : Harvey H. Hubbard
Publisher : Unknown
Page : 52 pages
File Size : 47,7 Mb
Release : 1986
Category : Sonic boom
ISBN : STANFORD:36105024736196
Author : Romesh C. Batra
Publisher : Springer Science & Business Media
Page : 696 pages
File Size : 42,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642800016
Fatigue failures occur in aerospace,marine,nuclear structures and automobile com ponents from initiation and propagation of cracks from holes,scratches or defects in the material. To design against these failures, crack propagation life and fracture strength need to be accurately predicted. It is reported in the literature, that these failures often initiate as surface cracks, corner cracks and cracks emanating from fastner holes. Such cracks are with elliptic or nearly elliptic in shapes. The deviation from elliptic shape is due to varying constraint effect along the crack front. Even in situations, when the cracks are through the thickness of the material, there would be thicknesswise variation of constraint effects leading to three dimensional nature of crack growth. Accurate predictions of the crack growth in these cases by numerical methods can be made only by solving three-dimensional boundary value problems. Empirical relationships have been developed [1] based on Linear Elastic Fracture Mechanics over years describing fatigue crack growth response. Some of these empirical relationships required modifications in the later stages, to meet the design applications. The Crack closure phenomenon discovered by Elber[2, 3] during the crack growth phase is mainly attributed to the local material yielding near the crack tip and the consequent residual plastic wake behind the crack tip. It helped considerably in understanding several aspects of fatigue crack growth and rewrite these relations.
Author : United States. National Bureau of Standards
Publisher : Unknown
Page : 32 pages
File Size : 43,9 Mb
Release : 1971
Category : Buildings
ISBN : UOM:39015006410271
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 28 pages
File Size : 50,7 Mb
Release : 1971
Category : Electronic
ISBN : STANFORD:36105216481098
Author : Anonim
Publisher : Unknown
Page : 52 pages
File Size : 42,5 Mb
Release : 1986
Category : Aeronautics
ISBN : MINN:31951000845538Z
Author : Anonim
Publisher : Unknown
Page : 628 pages
File Size : 51,5 Mb
Release : 1977
Category : Astronautics
ISBN : MINN:31951P001419031
Author : Harvey H. Hubbard
Publisher : Unknown
Page : 620 pages
File Size : 45,8 Mb
Release : 1991
Category : Aerodynamic noise
ISBN : STANFORD:36105024722329
Author : Anonim
Publisher : Unknown
Page : 980 pages
File Size : 52,7 Mb
Release : 2010
Category : Aeronautics
ISBN : UCSD:31822036341055
Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.
Author : Anonim
Publisher : Unknown
Page : 980 pages
File Size : 47,9 Mb
Release : 2010
Category : Aeronautics
ISBN : IND:30000132750666