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Principles and Techniques of Ultrasonic Inspection
Ultrasonic inspection for subsurface flaws is widely used in American industry. This report reviews the general principles and specific techniques of ultrasonic testing. The information is based on a review of the technical literature plus the experience of the Quality Assurance Department at Sandia Corporation in applying this nondestructive testing technique to quality evaluation programs.
Date:
July 2, 1953
Creator:
Psillas, H. C. & Ballard, D. W.
Object Type:
Report
System:
The UNT Digital Library
The Shape of a Shock Wave Derived from a Spherical Shock Wave Incident on a Concave Wedge
When a one-half ounce spherical charge of high explosive is detonated over a flat plane bounded by a 5 degree incline, the type of phenomenon encountered depends on the distance from ground zero to a beginning of the incline. If this distance is 48" the wave assumes a smooth contour on the plane. Detailed investigation of the shock velocity above the plane reveals that there is a pressure gradient along the shock front for a considerable region which replaces the usual triple point.
Date:
July 7, 1954
Creator:
Todd, Jay, Jr. & Schellenbaum, Ralph L.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Dallas NTMS Quadrangle, Texas
From abstract: Results of a reconnaissance geochemical survey of the Dallas Quadrangle, Texas are reported. Field and laboratory data are presented for 284 groundwater and 545 stream sediment samples. Statistical and areal distribution plots of uranium and possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided.
Date:
July 31, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Report
System:
The UNT Digital Library