Novel crevice formers used to evaluate composite to metal fastener interactions while immersed in seawater
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Creveling, Peter Jefferson [Sandia National Labora↗
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Results for “fasteners”
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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Evaluation of the Corrosion of Metallic Fastener Joints in Composite Materials Immersed in Seawater
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Presuel-Moreno, Francisco [FAU]↗
Sandia Mechanics Challenge: Predicting the Behavior of Structures with Threaded Fastener Joints in Accidents
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Kramer, Sharlotte LorraineBolyard [Sandia National↗
Evaluating Fastener Joint Performance: Advances in Modeling and Uncertainty Quantification From the Sandia Mechanics Challenge
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Mersch, John Philip [Sandia National Laboratories ↗
Sandia Mechanics Challenge: Experimental Testing for Calibration and Impact Testing of a Structure with a Thread Fastener Joint
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Ivanoff, Thomas [Sandia National Laboratories (SNL↗
Composite to Metal Fastener Interactions Investigated while Immersed in Seawater
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Presuel-Moreno, Francisco J [Florida Atlantic Univ↗
V-slotted screw head and matching driving tool facilitate insertion and removal of screw fasteners
A V-slotted designed screw and a screwdriver with a V-shaped tang facilitate driving the screw into difficult locations and minimize axial forces thus avoiding damage to the screw.
Handley, M. G.↗
Fastening of an animal in a pressurized capsule, fabric apparel and distribution of sensors for the registration of physiological functions
Harness for affixing sensors to dogs for registration of physiological phenomena during space flight
PHYSIOLOGICAL RESPONSE↗
A method of fastening electrodes for registering an electrocardiogram during manned space flights
Types and method of attaching electrodes in recording electrocardiogram during space flights
ELECTRODE↗
The influence of joint thermal conductance of the gap between bolted plates caused by fastener loads Semiannual progress report, 1 Jun. - 1 Dec. 1967
Literature survey on joint thermal conductance between bolted plates and experimental work on normal stress distribution under boltheads and interface stress distribution
Whitehurst, C. A.↗
Quick-release hook-and-loop fastener
Joints between two rigid materials lined with velcro fabric can now be broken with ease using any one of several methods. Three such methods are applicable to either hook or loop fabric.
Whitacre, H. E.↗
Fastener load analysis method Phase 1 report, 28 Jan. - 1 Aug. 1970
Analysis of bolt loads by ultrasonic techniques
Rollins, F. R., Jr.↗
Development of technology for installation of mechanical fasteners
Investigation of variables affecting joint preload properties of installed structural bolts and nuts used in fabrication and construction of spacecraft components
Brenner, H. S.↗
Fastener load analysis method Final report, 28 Jan. 1970 - Apr. 1971
Ultrasonic, pulse echo interferometric method for analyzing bolt preloads
Rollins, F. R., Jr.↗
Metallic composites as high-temperature fasteners
Metallic composities can be fabricated in one-step process in which mixture is directionally solidified. Phase-reinforced eutectic alloys have superior high-temperature mechanical properties.
George, F. D.↗
Proceedings of the Symposium on Welding, Bonding, and Fastening
Various technological processes to achieve lightweight reliable joining systems for structural elements of aircraft and spacecraft are considered. Joining methods, combinations of them, and nondestructive evaluation and quality assurance are emphasized.
Stein, B. A.↗
Large-diameter fasteners of CRES alloy
Double-hex bolthead allows bolts of high strength corrosion-resistant steel (CRES) to be made in diameters up to 1-1/4 in. Design allows 12-point tension heads to be cold formed to retain required minimum tensile strength of 220,000 psi and to retain high fracture strength.
Charles, J. F.↗
Stress-intensity factors for cracks emanating from the loaded fastener hole
Using a series approach and the Muskhelishvili formulation in the two-dimensional theory of elasticity, stress-intensity factors K are derived for problems in which cracks emanate radially from the boundary of an arbitrarily loaded internal circular hole in an infinite plate. Numerical values are obtained for K(I) and K(II) for radial cracks from a hole containing a loose-fitted pin or rivet that is pulled perpendicular to the crack direction in the plane of the plate. The method is a general one for determining K for a set of symmetrically emanating radial cracks for a variety of concentrated or distributed tractions on the circular hole.
Shivakumar, V.↗