| Bending and Shear Interaction Behavior of Upgraded Conventional Cold-Formed Steel Connections to Protect Against Moderate Blast Events |
JAN 2011 |
142 pages |
| Authors:
Bryan Bewick; Hani Salim; Brett Agee; MISSOURI UNIV-COLUMBIA DEPT OF CIVIL ENGINEERING
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 | The objective of this research is to evaluate the effectiveness and feasibility of modifying conventional steel stud track wall systems to more effectively utilize the strength and ductility of the material without significantly increasing the cost of construction. The approach of this research is to evaluate the strength of various modifications to the standard connection detail for steel stud wall systems. All of the proposed modifications were selected to be ... |
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| Equipment for Research on True Three Dimensional Displays |
APR 2001 |
7 pages |
| Authors:
Michael Bass; UNIVERSITY OF CENTRAL FLORIDA ORLANDO SCHOOL OF OPTICS/CREOL
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| Equipment is described that was purchased for the study of nonlinear absorption in dyes for use in tme, three dimensional displays. A pair of optical parametric oscillators pumped by the same frequency tripled, Q-switched Nd:YAG laser was purchased from Spectra Physics Inc. and installed with appropriate beam control optics. LabView drivers for the laser and the OPOs were written and combined in a master driver controlling the diagnostic equipment and, ... |
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| Leapfrog Technology to Standardize Equipment and System Installation. Section 5. Engineering, Testing, and Validation Methodology |
SEP 1999 |
44 pages |
| Authors:
Dominic Burns; John Hopkinson; NATIONAL STEEL AND SHIPBUILDING CO SAN DIEGO CA
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| Under this task we have looked at the engineering criteria specifications and requirements and the design and fabrication attributes for cost reduction and producibility and we have framed up an integrated set of procedures to conduct engineering analyses and verification of the standards to be proposed later in the project. This sub-task report describes and outlines this engineering methodology. This section also elaborates the loading criteria failure criteria and allowable ... |
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| Acoustic Transducer. |
15 OCT 1996 |
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| Authors:
Robert S. Janus; Kurt J. Janecek; Robert A. Roush; DEPARTMENT OF THE NAVY WASHINGTON DC
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 | An acoustic transducer comprising a housing, and first and second stacks of transduction plates disposed within the housing for engaging opposed wall portions of the housing, the first and second stacks being adapted to he held in compression between the housing opposed wall portions. A threaded stud extends from the first stack to the second stack, and a nut is threadedly engaged with the stud and adjacent one of the ... |
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| Quick Change Anti-Corona Connector. |
05 DEC 1995 |
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| Authors:
James R. Humphrey; Steven C. Tietsworth; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A high-voltage anticorona connector and method of use rely upon a hand rotatable wheel which is attachable to a threaded stud on a mounting flange for rapidly connecting and disconnecting an adaptor plate to a helix coil of a radio frequency transmit system. The handle of the wheel is ring shaped to preventing corona discharge from the area surrounding the connector. |
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| Insulation Attachment Stud for Composite Material Substrate. |
27 JUN 1995 |
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| Authors:
Charles M. Rollhauser; Creig P. Beck; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The invention is directed to a stud and attachment assembly for securing individual studs to composite material substrates so that thermal or acoustic insulating materials may be attached to the substrate. An attachment stud for securing a layer of insulation material to an organic matrix composite substrate is provided which includes a mechanical attachment element for securing the attachment stud to the composite substrate and a stud element rigidly affixed ... |
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| Improved Hardness RHA Weldability and Material Property Testing |
DEC 94 |
126 pages |
| Authors:
Michael L. Foos; GENERAL DYNAMICS CORP WARREN MI LAND SYSTEMS DIV
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| The M1-PMO, in conjunction with the US Army Research Laboratory (ARL) would like to potentially up-armor the M1 family of vehicles by increasing the hardness of rolled homogeneous armor (RHA) MIL-A-12560 steel. The basic thrust of the program is to utilize lower tempering temperatures and chemist of slightly more hardenability to produce a RHA armor with a Rockwell 'C' hardness of 39-48 without altering the current specification MlL-A-12560 steel. It ... |
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| Coupling Stud Assembly. |
29 NOV 1994 |
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| Authors:
Gus F. Plangetis; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A coupling stud assembly for coupling together a pair of flanges. A stud having a tapered surface is inserted into respective overlapping through-holes provided in the flanges so that a space is defined between the stud and inner walls of the holes. A wedge is fitted into the space and is pressed by a wedge spacer so as to tighten contact between the stud and the inner walls of the ... |
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| Proceedings of the Ship Production Symposium Held in Williamsburg, Virginia on November 1-4, 1993 |
NOV 1993 |
308 pages |
| Authors:
SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS NEW YORK
|
| This volume contains the texts of the twenty-five technical papers presented during the National Shipbuilding Research Program 1993 SHIP PRODUCTION SYMPOSIUM, sponsored by the Hampton Roads Section of the Society of Naval Architects and Marine Engineers (SNAME) The Symposium was held at the Williamsburg Lodge in Colonial Williamsburg, Virginia, from November 1-4, 1993. This marks the second time the Hampton Roads Section of SNAME has hosted the Symposium in Williamsburg. ... |
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| A Demonstration of Interactive Instruction for Training Shipyard Trade Skills |
SEP 1993 |
159 pages |
| Authors:
SHIP ANALYTICS INC NORTH STONINGTON CT
|
| The report describes the development and contents of an interactive videodisc (IVD) lesson that was produced by the National Shipbuilding Research Program (NSRP) to demonstrate interactive multimedia as an effective technology tor teaching shipyard trade skills. Interactive instruction evokes the active involvement of the trainee in his or her own computer controlled, audio-visual instruction. Through a desk top PC, the instruction exchanges information with the trainee on a personal basis; ... |
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| Engine Block Cylinder Head Bolt Home Repair. |
25 JUN 1991 |
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| Authors:
James C. Stafford; DEPARTMENT OF THE NAVY WASHINGTON DC
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| This patent discloses a method for repairing cylinder head bolt holes including removing the cylinder head from the damaged cylinder bore and removing an adjacent cylinder head from its adjacent cylinder bore. A drill base support is installed in the adjacent cylinder bore and drilling platform studs are installed at locations corresponding to the drill base studs are installed at locations corresponding to the drill base stud holes. A drill ... |
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| Characterization of M256 Bore Evacuator Performance |
JUN 91 |
37 pages |
| Authors:
David A. Porter; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Since the beginning of M256 cannon development, detailed information on the performance of the bore evacuator for different ammunition types or under various levels of degraded function has not been developed. The M256 bore evacuator is a pressure vessel which is charged with high pressure gas during firing of the cannon. As pressure inside the bore decrease, accumulated gas inside the bore evacuator is exhausted through the tube's bore evacuator ... |
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| Battlefield Armor Repair Kits |
OCT 85 |
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| Authors:
Alan J. Goldman; Dennis W. Gosselin; ARMY LAB COMMAND WATERTOWN MA MATERIAL TECHNOLOGY LAB
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| More than 40 adhesives have been studied in order to develop battlefield armor repair kits for the expedient repair of hull and turret damage. Laboratory lap shear strength and impact tests were used to screen candidates for ballistic and explosive shock tests. Four kits were subjected to field testing by a tank crew from Fort Knox. A commercially available hole filler successfully withstood hits of a .50 caliber AP projectile ... |
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| Effect of Spot and Stud Welding on ESR 4340 Steel Armor. |
FEB 1978 |
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| Authors:
Donald C. Buffum; ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS
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| The object of this project was to determine the effect of spot and stud welding on heat-treated ESR armor. It was noted that a hard layer of untempered martensite formed in the base metal below the spot and stud welds. Variations in welding technique did not remove or reduce this hard layer. The hard layer caused the welded appendage to be separated from the plate by the shock wave produced ... |
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Reports by Keyword(s)
STUD WELDING
