Fatigue behavior in strain cycling in the low- and intermediate-cycle range.
Elastic and plastic cyclic strain effects on fatigue characteristics of steel, aluminum, titanium, beryllium and high temperature alloys
FATIGUE LIFE↗
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Results for “Beryllium”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Carbon-arc rod holder has long life, reduces arc splatter
Carbon-arc rod holder with front end of beryllium oxide, a high electrical resistor and good thermal conductor, prevents nonuniform burning of the positive carbon rod and corrosion of the rod holder.
Source record↗
Design and development of an enclosure seal final report
Metal enclosure seal for retention of nitrogen gas in aluminum or beryllium container
SEALING↗
A Feasibility Study of the Flare-Cylinder Configuration as a Reentry Body Shape for an Intermediate Range Ballistic Missile
A study has been made of a flare-cylinder configuration to investigate its feasibility as a reentry body of an intermediate range ballistic missile. Factors considered were heating, weight, stability, and impact velocity. A series of trajectories covering the possible range of weight-drag ratios were computed for simple truncated nose shapes of varying pointedness, and hence varying weight-drag ratios. Four trajectories were chosen for detailed temperature computation from among those trajectories estimated to be possible. Temperature calculations were made for both "conventional" (for example, copper, Inconel, and stainless steel) and "unconventional" (for example, beryllium and graphite) materials. Results of the computations showed that an impact Mach number of 0.5 was readily obtainable for a body constructed from conventional materials. A substantial increase in subsonic impact velocity above a Mach number of 0.5 was possible without exceeding material temperature limits. A weight saving of up to 134 pounds out of 822 was possible with unconventional materials. This saving represents 78 percent of the structural weight. Supersonic impact would require construction of the body from unconventional materials but appeared to be well within the range of attainability.
Garland, B. J.↗
Accurate depth control provided for thermocouple junction locations
Flight reentry experiments define the total heating on a large blunt-nosed body by means of imbedded thermocouples. The thermocouples, installed in a beryllium layered forebody, were designed to provide minimum feasible disturbance of local heat flow with accurate depth control of the thermocouple junction locations.
Richardson, N. R.↗
Thermocouples easily installed in hard-to- get-to places
Thermocouple wires attached to charged capacitors are inserted in a drilled hole. An electric charge fuses the thermocouple wires to the host material. This method has shown excellent results in fusing nichrome, chromel, Inconel, and stainless steel wires to nickel, beryllium, iron, steel, Inconel, and stainless steel.
Guenther, F. G.↗
The production of charged pions by 600 MeV protons on various nuclei
Charged pion production by proton beam incidence on elements from beryllium to lead
NUCLEAR SCATTERING↗
X-ray telescope experiment package Final progress report, 12 Oct. 1965 - 15 Mar. 1966
Electronics of aluminum and beryllium window proportional counters for Aerobee X-ray telescope instrument package
ELECTRONICS↗
Differential Cross Sections for the Production of Protons in the Reactions of 160-mev Protons on Complex Nuclei
Differential cross sections for secondary proton production by proton incident beam on beryllium, carbon, water, aluminum, cobalt, and bismuth targets
NUCLEUS↗
Electrode materials for cesium contact ion engines.
Focusing and accelerating electrode materials for cesium contact ion engines, noting advantages of copper, beryllium and molybdenum
ELECTRODE↗
Miniature capacitor functions as pressure sensor
Miniature capacitor operates as a differential pressure telemetry sensor during free flight of test model in a hypersonic wind tunnel. The capacitor incorporates a beryllium copper diaphragm. It is also used as an absolute pressure sensor.
Harrison, R. G.↗
An improved soft X-ray photoionization detector
Photoionization detector with an alumina shell, a beryllium foil window, and a xenon gas fill measures small incident photon fluxes from soft X rays. It has high spectral selectivity and quantum efficiencies, and a long shelf life. It minimizes electrical leakage and recontamination, and will hold a high vacuum.
Stober, A. K.↗
Portable, high intensity isotopic neutron source provides increased experimental accuracy
Small portable, high intensity isotopic neutron source combines twelve curium-americium beryllium sources. This high intensity of neutrons, with a flux which slowly decreases at a known rate, provides for increased experimental accuracy.
Mohr, W. C.↗
High-speed pulse camera
Miniaturized, 16 mm high speed pulse camera takes spectral photometric photographs upon instantaneous command. The design includes a low-friction, low-inertia film transport, a very thin beryllium shutter driven by a low-inertia stepper motor for minimum actuation time after a pulse command, and a binary encoder.
Lawson, J. R.↗
One-dimensional two-phase reacting gas nonequilibrium performance program
Computer program calculates the inviscid one-dimensional equilibrium, frozen, and nonequilibrium nozzle expansion of propellant exhaust mixtures containing carbon, hydrogen, oxygen, nitrogen, fluorine, chlorine and either aluminum, beryllium, boron or lithium. This program performs calculations for conical nozzles only.
Cherry, S. S.↗
Axisymmetric reacting gas nonequilibrium performance program
Computer program calculates the inviscid one-dimensional equilibrium, frozen, and nonequilibrium nozzle expansion of propellant exhaust mixtures containing these six elements - carbon, hydrogen, oxygen, nitrogen, fluorine, and chlorine plus either aluminum, beryllium, boron or lithium. This program will perform calculations for contoured and conical nozzles.
Kliegel, J. R.↗
High-emittance coatings on metal substrates
High-emittance coatings of iron, calcium, and zirconium titanates thermally sprayed on stainless steel, columbium-1 percent zirconium, and beryllium substrates promote and control radiative heat transfer from the metal substrates. Adherence, compatibility and emittance stability at elevated temperature and high vacuum were evaluated.
Emanuelson, R. C.↗
Temperature controlled strain gaged extensometer
Temperature controlled strain-gaged extensometer measures longitudinal and girth deflections of pressure vessels in excess of one percent strain during pressurization and depressurization with cryogenic fluids at cryogenic temperatures. The device is of beryllium-copper strips.
Ramos, G. L.↗