An investigation of Apollo titanium pressure vessel welds made with commercially pure filler wire
Hydride formation analysis on Apollo titanium pressure vessel welds made with commercial wire
Ecord, G. M.↗
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Results for “vessel”
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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Nonlinear analysis of pressure and shock waves in blood vessels
Nonlinear analysis of pressure waves and shock waves in blood vessels
Rockwell, R. L.↗
Comparison of Inconel 718 and aluminum 2219 for a high-pressure hydrogen vessel.
Inconel 718 and Al 2219 alloys surface flawed specimens fracture toughness and flaw growth comparison for high pressure hydrogen vessel
Taylor, J. L.↗
The performance of glass-filament-wound pressure vessels with metal liners at cryogenic temperatures
Metal lined glass filament-wound pressure vessel performance at cryogenic temperatures, discussing fibers, resins and liners
Morris, E. E.↗
Titanium pressure vessel manufacturing techniques
Saturn booster Ti alloy pressure vessel forging, heat treatment and welding, discussing machining, cleaning and tooling
Garfield, G.↗
Titanium alloy pressure vessels in the manned space program
Stress corrosion cracking of Ti alloys in nitrogen tetroxide and methyl alcohol environments in Apollo spacecraft pressure vessels
Johnson, R. E.↗
Slope discontinuities in pressure vessels
Shell of revolution /pressure vessel/ with meridional slope discontinuity, calculating pressurization effect on stresses by computer program
Skogh, J.↗
Fracture mechanics evaluation of Ti-6A1-4V pressure vessels
Computer program calculates maximum potential flaw depth after specific cyclic pressure history. Kobayashi's solution to critical stress intensity equation and empirical relation for flaw growth rate are used. Program assesses pressure vessels of any material but only cylindrical or spherical shapes.
Cox, D. G.↗
Thin-walled pressure vessel Patent
Thin walled pressure test vessel using low-melting alloy-filled joint to attach shell to heads
Esgar, J. B.↗
Fracture control of metallic pressure vessels. NASA space vehicle design criteria, structures
Design criteria for fracture optimization of metallic pressure vessels
Tiffany, C. F.↗
Mechanical manifestations of cardiac activity and the functional state of the vessels
Methods for measuring mechanical aspects of cardiac activity and vessel functional state
Source record↗
Development of a filament-overwrapped cryoformed metal pressure vessel Final report, Jul. 1967 - Aug. 1970
Buckling, fiber and resin thermal resistance, and hydrostatic tests of glass fiber reinforced spherical pressure vessels and liners
Gleich, D.↗
Preliminary impact speed and angle criteria for design of a nuclear airplane fission product containment vessel
Studying aircraft accidents to determine impact angle and speed criteria for designing nuclear airplane fission product containment vessel
Finnegan, P. M.↗
The use of linear elastic fracture mechanics in Viking pressure vessel design
Viking Mars spacecraft pressure vessel design, incorporating linear elastic fracture mechanics for long life
Guy, L. D.↗
Structural design and stress analysis program for advanced composite filament-wound axisymmetric pressure vessels (COMTANK)
Computer program has been specifically developed to handle, in an efficient and cost effective manner, planar wound pressure vessels fabricated of either boron-epoxy or graphite-epoxy advanced composite materials.
Knoell, A. C.↗
Analytical prediction of the heat transfer from a blood vessel near the skin surface when cooled by a symmetrical cooling strip
An analytical method was developed to estimate the amount of heat extracted from an artery running close to the skin surface which is cooled in a symmetrical fashion by a cooling strip. The results indicate that the optimum width of a cooling strip is approximately three times the depth to the centerline of the artery. The heat extracted from an artery with such a strip is about 0.9 w/m-C which is too small to affect significantly the temperature of the blood flow through a main blood vessel, such as the carotid artery. The method is applicable to veins as well.
Chato, J. C.↗
Structural dynamic and thermal stress analysis of nuclear reactor vessel support system
A nuclear reactor vessel is supported by a Z-ring and a box ring girder. The two proposed structural configurations to transmit the loads from the Z-ring and the box ring girder to the foundation are shown. The cantilever concrete ledge transmitting the load from the Z-ring and the box girder via the cavity wall to the foundation is shown, along with the loads being transmitted through one of the six steel columns. Both of these two supporting systems were analyzed by using rigid format 9 of NASTRAN for dynamic loads, and the thermal stresses were analyzed by AXISOL. The six column configuration was modeled by a combination of plate and bar elements, and the concrete cantilever ledge configuration was modeled by plate elements. Both configurations were found structurally satisfactory; however, nonstructural considerations favored the concrete cantilever ledge.
Chi-Diango, J.↗
Effects of viscosity and constraints on the dispersion and dissipation of waves in large blood vessels. I.
Investigation of the effects of blood viscosity on dissipation as well as dispersion of small waves in arteries and veins by means of a parametric study. A linearized analysis of axisymmetric waves in a cylindrical membrane that contains a viscous fluid indicates that there are two families of waves: a family of slow waves and one of fast waves. The faster waves are shown to be more sensitive to variations in the elastic properties of the medium surrounding the blood vessels and at high values of the frequency parameter alpha. At low values of alpha the effects of viscosity on attenuation are reversed.
Jones, E.↗