Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 52

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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722066574
Category :
Languages : en
Pages : 50

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Book Description
A series of fracture mechanics tests, using the Be-Cu alloy CDA172 in the round rod product form, was conducted in a lab air environment at room temperature. Tensile data is presented in both the L and C directions and K sub Ic data in both the C-R and C-L orientations. Fracture toughness values were derived from M(T) (center cracked), PS(T) (surface cracked) and CC01 (corner cracked) specimens of varying thickness. Fatigue crack growth data were obtained for the C-R orientation at stress ratio of 0.1, 0.4, and 0.7 and for the C-L orientation at stress ratios of 0.1, 0.3, 0.4, and 0.7. Forman, Royce G. and Henkener, Julie A. Johnson Space Center ...

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460

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Book Description
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.

Author: Hisao Matsunaga
Publisher: Elsevier
ISBN: 0323853331
Category : Technology & Engineering
Languages : en
Pages : 411

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Book Description
Hydrogen Gas Embrittlement: Mechanisms, Mechanics, and Design enables readers to understand complicated hydrogen-material interactions and conduct better material selection and strength design for hydrogen components. The book reviews the fundamental mechanisms of hydrogen embrittlement, the various behaviors of hydrogen in metallic materials such as diffusion, solution, and trapping, and emphasizes the necessary properties for effective strength design of various materials under the influence of hydrogen, including tensile properties, fatigue life, fatigue limit, fatigue crack-growth, and fracture toughness. Sections provide experimental data obtained in hydrogen gas at various pressures and temperatures together with the fractographic observations, including practical interpretation of hydrogen compatibility of materials based on tensile, fatigue and fracture mechanics testing results. Material testing machines and methods, the effects of hydrogen on various BCC steels, austenitic steels, and non-ferrous metals, and practical applications and methods of strength design for hydrogen vessels and components are all included as well. - Enables a better understanding of hydrogen-material interactions, allowing for better material selection and strength design - Provides insights on the hydrogen-induced degradation of materials strength at the atomic, macroscale and microscale - Looks at a number of degradative behaviors in a variety of materials, including BCC steels, austenitic steels and non-ferrous metals - Includes verification tests, case studies, applications and experimental data

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1646

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Author: New Brunswick. Department of Transportation
Publisher:
ISBN: 9781550483925
Category :
Languages : en
Pages : 1272

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Book Description
General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.

Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 624

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 68

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 720

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Author: Barrie D. Dunn
Publisher: Springer
ISBN: 3319233629
Category : Technology & Engineering
Languages : en
Pages : 677

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Book Description
The objective of this book is to assist scientists and engineers select the ideal material or manufacturing process for particular applications; these could cover a wide range of fields, from light-weight structures to electronic hardware. The book will help in problem solving as it also presents more than 100 case studies and failure investigations from the space sector that can, by analogy, be applied to other industries. Difficult-to-find material data is included for reference. The sciences of metallic (primarily) and organic materials presented throughout the book demonstrate how they can be applied as an integral part of spacecraft product assurance schemes, which involve quality, material and processes evaluations, and the selection of mechanical and component parts. In this successor edition, which has been revised and updated, engineering problems associated with critical spacecraft hardware and the space environment are highlighted by over 500 illustrations including micrographs and fractographs. Space hardware captured by astronauts and returned to Earth from long durations in space are examined. Information detailed in the Handbook is applicable to general terrestrial applications including consumer electronics as well as high reliability systems associated with aeronautics, medical equipment and ground transportation. This Handbook is also directed to those involved in maximizing the relia bility of new materials and processes for space technology and space engineering. It will be invaluable to engineers concerned with the construction of advanced structures or mechanical and electronic sub-systems.