Status of Sonic Boom Methodology and Understanding
Author : Christine M. Darden
Publisher :
Page : 40 pages
File Size : 22,69 MB
Release : 1988
Category : Sonic boom
ISBN :
Author : Christine M. Darden
Publisher :
Page : 40 pages
File Size : 22,69 MB
Release : 1988
Category : Sonic boom
ISBN :
Author : Daniel G. Baize
Publisher :
Page : 434 pages
File Size : 50,60 MB
Release : 1996
Category : High-speed aeronautics
ISBN :
Author :
Publisher :
Page : 24 pages
File Size : 13,83 MB
Release : 1979
Category :
ISBN :
Author :
Publisher :
Page : 980 pages
File Size : 31,97 MB
Release : 2010
Category : Aeronautics
ISBN :
Author : David A. McCurdy
Publisher :
Page : 236 pages
File Size : 13,77 MB
Release : 1994
Category : High-speed aeronautics
ISBN :
Author :
Publisher :
Page : 64 pages
File Size : 50,26 MB
Release : 1990
Category : Aeronautics
ISBN :
Author : Romesh C. Batra
Publisher : Springer Science & Business Media
Page : 696 pages
File Size : 13,53 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 3642800017
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 : David A. Caughey
Publisher : World Scientific
Page : 508 pages
File Size : 15,44 MB
Release : 1998
Category : Science
ISBN : 9789810237073
The first volume of Frontiers of Computational Fluid Dynamics was published in 1994 and was dedicated to Prof Antony Jameson. The present volume is dedicated to Prof Earll Murman in appreciation of his original contributions to this field.The book covers the following topics: Transonic and Hypersonic AerodynamicsAlgorithm Developments and Computational TechniquesImpact of High Performance ComputingApplications in Aeronautics and BeyondIndustrial PerspectivesEngineering EducationThe book contains 25 chapters written by leading researchers from academia, government laboratories, and industry
Author :
Publisher :
Page : 988 pages
File Size : 50,16 MB
Release : 1989
Category : Aeronautics
ISBN :
Author : Advisory Committee on Technology and Society
Publisher : National Academies Press
Page : 1298 pages
File Size : 10,58 MB
Release : 1989
Category : Social Science
ISBN : 9780309037860
Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.