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High-velocity impact tests involving thin spherical shells of tantalum and 304 stainless steel
This experimental program generated data to improve computer-code modeling of impact phenomena. The improved computation technique will be used to design a fissile-material container able to withstand a 335 m/s impact. The program involved flyer-plate-impact tests using thin shells of annealed 304 stainless steel and annealed tantalum at impact velocities of 28 to 180 m/s. No active instrumentation was used in this study; instead, all data were derived from measurements of test specimens. Pre- and post-test measurement of interior and exterior dot patterns etched on the shells provided surface-strain information. Radiographs of the deformed shells provided shell-contour data that we plotted vs impact velocity. Curves were fit to these data. We found that normalized crush height varies almost linearly with impact velocity for both materials, that normalized radius of contact varies directly with impact velocity for both materials but appears independent of shell thickness for tantalum, and that normalized interior-fold radius varies inversely with impact velocity and directly with shell thickness for stainless steel, but no clear relationship appears for tantalum.
Date:
August 26, 1977
Creator:
Steffan, K. L.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0289.0108]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "A special committee has started sampling Oklahoma's business and industrial climate in an effort to find how the state stacks up with its neighbors."
Date:
August 26, 1971
Creator:
Wilson, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0053.0747]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "The driver and a passenger in this cab escaped serious injury when their truck and trailer, carrying 20 tons of hanging beef, overturned about 2 a.m. this morning at the I-35, I-40 interchange."
Date:
August 26, 1977
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0295.0240]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Hawaiian dancers Pat Davis, left; Delores Fisk, center, and Ichiro Takahata provided after-dinner entertainment."
Date:
August 26, 1973
Creator:
Traverse, Cliff
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.1206]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "DEATH SCENE at NW 63 and the Broadway Extension is mark with twisted metal Thursday afternoon. Mrs. Jewel V. Gallion, 1608 Glenbrook Ter., driving car in background , was fatally injured as she left the Broadway Extension and collided with a car in foreground, driven by Kenneth L. Gayler, 73 of 6600 N Kelley. Gayer and a passenger, Gale A. Sparks, 19 Fort Wayne Ind., were admitted to Baptist Memorial Hospital, where their conditions were described as good. Story on page 9."
Date:
August 26, 1971
Creator:
Heaton, Dave
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0118.0537]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John Lewis, transportation director, checks cut fence."
Date:
August 26, 1979
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0147.0121]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "The Indian finger weave is an art all its own, and Mrs. James M Cox takes pride in such tribal crafts."
Date:
August 26, 1970
Creator:
Taylor, Robert
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0158.0149]
Photograph used for a story in the Oklahoma Times newspaper.
Date:
August 26, 1970
Creator:
Wilson, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0137.0680]
Caption: "Bryan Hennessey, 8, playfully slugs it out with Sam, a local clown, during a fund-raising carnival sponsored by a local fast-food restaurant on Northwest 23."
Date:
August 26, 1979
Creator:
Thompson, Michal
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0136.0595]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Scale model of the Apollo lunar module is examined by Dr. John Cleek, left, president of South Oklahoma City Junior College and James Harlow, president of the Oklahoma Gas & Electric Co., during open house."
Date:
August 26, 1973
Creator:
Traverse, Cliff
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0319B.0577]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Junior Hospitality Club provisional's gather for coffee."
Date:
August 26, 1971
Creator:
Taylor, Robert
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Mechanical design criteria for continuously operating neutral beams
A schematic of a neutral beam injector is shown. Neutral gas is injected into the ion source, where a discharge ionizes the gas. The ions are drawn from the source by an extractor grid and then accelerated to full energy by the accel grids. After acceleration the ions pass through the neutralizer cell. Once through the neutralizer cell, the beam consists of neutrals and ions. The ions traveling with the beam are space charge neutralized by background electrons. The grid which precedes the direct converter is negatively charged and acts to separate the electrons from the rest of the beam. As a result of the beam's uncompensated space charge the remaining ions spread out from the beam to be collected at the direct converter. This paper presents a generalized analysis which will be useful in determining effects of energy and particle fluxes on the long-term performance of the grids. (MOW)
Date:
August 26, 1977
Creator:
Vosen, S. R.; Bender, D. J.; Fink, J. H. & Lee, J. D.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0339.0172]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mark Keller puts the finishing touches on his conception of the human id."
Date:
August 26, 1970
Creator:
Fisher, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0348.0426]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Sherri Kyle, daughter of Mr. and Mrs. Paul Kyle, will be installed as sweetheart of the newly-formed Amity Chapter, Order of DeMolay, Saturday night at Amity Masonic Lodge, 3415 NW 36."
Date:
August 26, 1976
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Cyrtonaias tampicoensis, Specimen #196
One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; pink internal coloring; dark brown external coloring; no external sculpturing. Collected in the Nueces basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date:
August 26, 1979
Creator:
Britton, Joseph; Britton, David; Britton, Michael & La Grove, M.
Object Type:
Specimen
System:
The UNT Digital Library
Cyrtonaias tampicoensis, Specimen #197
One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; pink internal coloring; dark brown external coloring; no external sculpturing. Collected in the Nueces basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date:
August 26, 1979
Creator:
Britton, Joseph; Britton, David; Britton, Michael & La Grove, M.
Object Type:
Specimen
System:
The UNT Digital Library
Cyrtonaias tampicoensis, Specimen #198
One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Nueces basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date:
August 26, 1979
Creator:
Britton, Joseph; Britton, David; Britton, Michael & La Grove, M.
Object Type:
Specimen
System:
The UNT Digital Library
Cyrtonaias tampicoensis, Specimen #199
One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; pink internal coloring; dark brown external coloring; no external sculpturing. Collected in the Nueces basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date:
August 26, 1979
Creator:
Britton, Joseph; Britton, David; Britton, Michael & La Grove, M.
Object Type:
Specimen
System:
The UNT Digital Library
[Photograph 2012.201.B0246.0302]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Asst. Municipal Counselor"
Date:
August 26, 1976
Creator:
Dryden
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0260B.0357]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Don Hoggs - state high education chancellor"
Date:
August 26, 1977
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0261B.0252]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Starting again, "I probably would attempt to be more tolerant and more patient."
Date:
August 26, 1970
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0228.0725]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mrs. Robert I. Greenberg, left, and Mrs. Kay Gerry prepare refreshments for volunteers attending the Kick off for the ticket campaign of the Oklahoma City Symphony."
Date:
August 26, 1974
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0240.0348]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A new type of hair dryer which greatly reduces the time women have to sit under a hot air blower has been devised by Wilfred Greenlee, Louisville , Ky., engineer."
Date:
August 26, 1973
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0338B.0165]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Clyde Karns finds another extinguisher gone."
Date:
August 26, 1974
Creator:
Carter, Pat J.
Object Type:
Photograph
System:
The Gateway to Oklahoma History