A Phenomenological Theory for the Transient Creep of Metals at Elevated Temperatures

A Phenomenological Theory for the Transient Creep of Metals at Elevated Temperatures PDF Author: Elbridge Z. Stowell
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 24

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NASA Technical Report

NASA Technical Report PDF Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 28

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The Theory of Diffusion in Strained Systems

The Theory of Diffusion in Strained Systems PDF Author: Louis A. Girifalco
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ISBN:
Category : Crystals
Languages : en
Pages : 1082

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A general theory of solid-state diffusion in strained systems is developed on a molecular-kinetic basis. The theory predicts that for simple strains the diffusion coefficient is an exponential function of the lattice parameter and that the rate of change of the diffusion coefficient with strain is linearly related to the interatomic forces. It has also been shown that for plastic flow the diffusion coefficient is a linear function of strain rate. All the conclusions are confirmed by the data available in the literature.

Technical Note - National Advisory Committee for Aeronautics

Technical Note - National Advisory Committee for Aeronautics PDF Author: United States. National Advisory Committee for Aeronautics
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ISBN:
Category : Aeronautics
Languages : en
Pages : 246

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Index of NASA Technical Publications

Index of NASA Technical Publications PDF Author: United States. National Aeronautics and Space Administration
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ISBN:
Category : Aeronautics
Languages : en
Pages : 448

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Some Static Longitudinal Stability Characteristics of an Overlapped-type Tandem-rotor Helicopter at Low Airspeeds

Some Static Longitudinal Stability Characteristics of an Overlapped-type Tandem-rotor Helicopter at Low Airspeeds PDF Author: Robert J. Tapscott
Publisher:
ISBN:
Category : Downwash (Aerodynamics)
Languages : en
Pages : 666

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Flight measurements of some longitudinal static stability characteristics with an overlapped-type tandem-rotor helicopter at low airspeeds are presented. The data show that a critical amount of longitudinal control is required to maintain trimmed flight at certain combinations of airspeed and rate of descent. Estimates based on theoretically predicted interference effects indicate that the front rotor downwash acting on the rear rotor could cause variation of the longitudinal moments of the same order of magnitude as the measured variation.

Nuclear Science Abstracts

Nuclear Science Abstracts PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 934

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Government-wide Index to Federal Research & Development Reports

Government-wide Index to Federal Research & Development Reports PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1020

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D M I C Report

D M I C Report PDF Author: Defense Metals Information Center
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 206

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A Selected Listing of NASA Scientific and Technical Reports for ...

A Selected Listing of NASA Scientific and Technical Reports for ... PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 450

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Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1812

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