Application of ultrasonics to detection of fatigue cracks.
Formation of fatigue cracks in center notched sheet specimens of various metals ultrasonically tested for axial tensile fatigue
ULTRASONIC TESTING↗
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Results for “ultrasonic”
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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Omnidirectional scattering of ultrasonic waves from rough surfaces of known statistics with application to electromagnetic scattering.
Omnidirectional scattering of ultrasonic waves from rough surfaces satisfying Kirchhoff theory with respect to electromagnetic scattering
SURFACE ROUGHNESS↗
Theoretical investigation of ultrasonic attenuation for free electrons in the presence of a magnetic field
Attenuation of transverse and longitudinal ultrasonic waves in presence of magnetic field for various values of phonon wave number and electron mean free path
FREE ELECTRON↗
Hazards monitoring at NASA Merritt Island launch area. Volume II - Task B - Ultrasonic leak detectors for cryogenics and gases Final report
Performance of ultrasonic leak detectors for cryogenics and gases, and testing of their applicability to Saturn transfer and checkout operations
ULTRASONIC TESTING↗
Ultrasonic attenuation in superconducting niobium
Attenuation of ultrasonic waves in superconducting niobium
ULTRASONIC WAVE↗
Backscatter of Ultrasonic Waves from a Rough Layer
Kirchhoff approximation used to calculate backscatter of ultrasonic waves from rough layer
ULTRASONIC WAVE↗
A new effect in the low magnetic field ultrasonic attenuation of impure superconducting niobium
Low magnetic field ultrasonic attenuation of impure superconducting niobium
ACOUSTIC ATTENUATION↗
Ultrasonic properties of solids
Ultrasonic properties of solids studied to obtain information about bulk systems near phase transitions or critical points
PHASE CHANGE↗
Ultrasonic analysis of cold-rolled aluminum
Shear wave refraction for ultrasonic detection of residual stress in cold-worked aluminum
RESIDUAL STRESS↗
Ultrasonic measurement of stress in aluminum
Ultrasonic techniques to measure residual stress in surface of aluminum structures
ULTRASONIC TESTING↗
Automated ultrasonic scanning by triangulation method
Acoustic spectrometer system for ultrasonic nondestructive testing by triangulation method
NONDESTRUCTIVE TESTING↗
Ultrasonic emission detector evaluation of strength of bonded materials
Ultrasonic emission detector for nondestructive determination of bond strength
EMISSION SPECTRUM↗
Encapsulating flatpack integrated circuits by means of ultrasonic welding
Ultrasonic welding of covers on flatpack integrated circuits for producing hermetically sealed packages at high rates without exposure to high temperature
HERMETIC SEAL↗
Automated ultrasonic scanning by triangulation methods - The Dickinson system
Flaw detection by ultrasonic scanning using triangulation methods
FLAW DETECTION↗
Ultrasonic emission detector evaluation of the strength of bonded materials
Ultrasonic emission detector for adhesive bond strength determinations in stressed composite structures
ULTRASONIC TESTING↗
Development of mechanized ultrasonic scanning system
Mechanized ultrasonic scanning system for testing butt welds in large aluminum propellant tanks
WELDED JOINT↗
A stand to test materials for creep in an ultrasonic field
Creep test stand for ultrasonic studies on high temperature alloys
CREEP TESTING MACHINE↗
Ultrasonic modeling of lunar approach of the lunar excursion module
Ultrasonic modeling system for simulating lunar excursion module landing trajectory on lunar surface
LUNAR EXCURSION MODULE /LEM/↗