Inertia effects in the tensile stress relaxation test
Ramp rise time and relaxation time effects on tensile stress response
SEARCH · Search NASA
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Ramp rise time and relaxation time effects on tensile stress response
Ultimate tensile properties of amorphous unfilled elastomers - dependence of failure envelope on crosslink density
Effect of 1000 hour thermal exposures on tensile properties of refractory metal alloys
Metallurgical and geometrical factors affecting high temperature tensile properties of discontinuous composites of copper and copper chromium alloy reinforced with tungsten wires
Limiting equilibrium of plates weakened by series of aligned rectilinear cracks formed by tensile stress
Cavitation processes produced by acoustic tensile pressure waves in tap water
Metallurgical and geometrical factors affecting high temperature tensile properties of discontinuous tungsten fiber reinforced composites
Aluminum alloy composite bulkhead fabrication under tensile stress with improved bonding uniformity
Fabrication under tensile stress of large double contour composite structures, obtaining improved bonding
Specimens of HK31XA-H24 magnesium-alloy sheet from an experimental batch were heated to failure at nominal temperature rates from 0.2 F to 100 F per second under constant-load conditions. Rapid-heating yield and rupture stresses are presented and compared with the yield and ultimate stresses from elevated-temperature tensile stress-strain tests for 1/2-hour exposure. Linear temperature-rate parameters were used to correlate rapid-heating results by constructing master curves which can be used for predicting yield stresses and temperatures and for estimating rupture stresses and temperatures.
An investigation was conducted to obtain a better understanding on the microstructural characteristics of 5-inch-thick AA2219-T87 plate material and the mechanism that led to the unexpected low ductility in the short-transverse (ST) orientation. Materials characterization techniques were utilized to observe the microstructure of fractured tensile specimens and remnant plate material. The mechanism and cause of low ST ductility in the thick plate material is presented and discussed in this report.
Tensile properties of five low-alloy and stainless steels under high heating rate and constant temperature
Lightweight deformation gage attached to a polymer specimen determines the thickness changes undergone by the specimen during the testing of its tensile and elongation properties. Mechanical noise from outside sources is dampened when the assembly is hung on a light rubber band.
Composite plate of fine steel wires imbedded in an aluminum alloy matrix results in a lightweight material with high tensile strength. Plates have been prepared having the strength of titanium with only 85 percent of its density.
Tensile fracture propagation along plane interface of isotropic media with different elastic properties
Comparative tensile and fatigue properties of welded Centaur stainless steel tank joint configurations at room and liquid hydrogen temperatures
Tensile specimens can be tested in liquid nitrogen without subjecting the cryostat to tilting during assembly of the specimen in the liquid nitrogen-filled cryostat. A universal joint with a semielliptical head and socket reduces misalignment and permits only limited side travel.
Modified testing system determines tensile properties of irradiated brittle-type metals at cryogenic temperatures. The system includes a lightweight cryostat, split-screw grips, a universal joint, and a special temperature control system.