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in subjects: "Fasteners"  
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Accelerated Aging of Polymer Composite Bridge Materials

Description: Accelerated aging research on samples of composite material and candidate ultraviolet (UV) protective coatings is determining the effects of six environmental factors on material durability. Candidate fastener materials are being evaluated to determine corrosion rates and crevice corrosion effects at load-bearing joints. This work supports field testing of a 30-ft long, 18-ft wide polymer matrix composite (PMC) bridge at the Idaho National Engineering and Environmental Laboratory (INEEL). Durab… more
Date: March 1, 1999
Creator: Carlson, Nancy Margaret; Blackwood, Larry Gene; Torres, Lucinda Laine; Rodriguez, Julio Gallardo & Yoder, Timothy Scott
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Forces in bolted joints: analysis methods and test results utilized for nuclear core applications

Description: Analytical methods and test data employed in the core design of bolted joints for the LWBR core are presented. The effects of external working loads, thermal expansion, and material stress relaxation are considered in the formulation developed to analyze joint performance. Extensions of these methods are also provided for bolted joints having both axial and bending flexibilities, and for the effect of plastic deformation on internal forces developed in a bolted joint. Design applications are il… more
Date: March 1, 1981
Creator: Crescimanno, P. J. & Keller, K. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photoelastic study: Rover flange and clamp

Description: This two-dimensional photoelastic study was performed as a means of determining what effect a notch at the base of the flanges had on the strength of these parts. These notches were proposed as a means of clamping the shield and reflectors. The objective of this test was to determine the amount of increased stress in the flange and clamp at the required locations.
Date: March 19, 1962
Creator: Curry, R. N.; Fleck, E. G. & Wander, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stress analysis of the retaining stud for the ECC rake

Description: A stress analysis of the retaining stud on the ECC Rake has been completed. The analysis considered thermal and mechanical loads that the stud is subjected to during a LOCE. The stud was analyzed to the requirement of Subsection NF of the (1977) ASME Code, Ref. 2. The stud was found to be structurally adequate.
Date: March 26, 1979
Creator: Finicle, D. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering Sheets of 12 Metre Solenoid

Description: The solenoid design follows closely the considerations qiven in {bar p} note 116. In particular we try to make the solenoid undivided, but with a centre tap for the cooling water. We found a variant for the centre tap, so that the two layers are now electrically in series. Due to the very long length, it seems better not to fill the clearance between return yoke and OD of the second layer with epoxy. Instead, we support and adjust the coil every 2 m with three bolts at 120 deqrees screwed in th… more
Date: March 30, 1981
Creator: Krienen, Frank
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lifting Beam Design/Analysis for the Data Acquisition and Control System Trailer

Description: This supporting document details calculations completed to properly design an adjustable lifting beam. The main use of the lifting beam is to hoist the Data Acquisition and Controls Systems (DACS) trailer over a steam line. All design work was completed using the American Institute of Steel Construction, Manual of Steel Construction (AISC, 1989) and Hanford Hoisting and Rigging Manual (WHC, 1992).
Date: March 15, 1993
Creator: Mackey, T. C. & Benegas, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of shape memory alloys for safety mechanisms.

Description: Shape memory alloys (SMAs) are metals that exhibit large recoverable strains and exert large forces with tremendous energy densities. The behavior of SMAs is thermomechanically coupled. Their response to temperature is sensitive to their loading condition and their response to loading is sensitive to their thermal condition. This coupled behavior is not to be circumvented, but to be confronted and understood, since it is what manifests SMA's superior clamping performance. To reasonably characte… more
Date: March 1, 2008
Creator: McLaughlin, Jarred T.; Buchheit, Thomas Edward & Massad, Jordan Elias
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Envera Variable Compression Ratio Engine

Description: Aggressive engine downsizing, variable compression ratio and use of the Atkinson cycle are being combined to improve fuel economy by up to 40 percent relative to port fuel injected gasoline engines, while maintaining full engine power. Approach Engine downsizing is viewed by US and foreign automobile manufacturers as one of the best options for improving fuel economy. While this strategy has already demonstrated a degree of success, downsizing and fuel economy gains are currently limited. With … more
Date: March 15, 2011
Creator: Mendler, Charles
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on accelerated corrosion studies.

Description: Sandia National Laboratories (SNL) conducted accelerated atmospheric corrosion testing for the U.S. Consumer Product Safety Commission (CPSC) to help further the understanding of the development of corrosion products on conductor materials in household electrical components exposed to environmental conditions representative of homes constructed with problem drywall. The conditions of the accelerated testing were chosen to produce corrosion product growth that would be consistent with long-term … more
Date: March 1, 2011
Creator: Mowry, Curtis Dale; Glass, Sarah Jill & Sorensen, Neil Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Accelerated Aging of Polymer Composite Bridge Materials

Description: Accelerated aging research on samples of composite material and candidate ultraviolet (UV) protective coatings is determining the effects of six environmental factors on material durability. Candidate fastener materials are being evaluated to determine corrosion rates and crevice corrosion effects at load-bearing joints. This work supports field testing of a 30-ft long, 18-ft wide polymer matrix composite (PMC) bridge at the Idaho National Engineering and Environmental Laboratory (INEEL). Durab… more
Date: March 1, 1999
Creator: Rodriguez, J. G.; Blackwood, L. G.; Torres, L. L.; Carlson, N. M. & Yoder, T. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ESF GROUND SUPPORT - PROPOSED JACKING BRACKET EVALUATION

Description: This calculation applies to the Constructor's design of the proposed jacking bracket for the W6 x 20 steel set. The specific features of the jacking bracket evaluated in this analysis are the shear on the bracket bolts, and the effects of the applied moment on the W6 x 20 steel set beam segment.
Date: March 28, 1996
Creator: Stine, Marvin D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pipeline Structural Health Monitoring Using Macro-fiber Composite Active Sensors

Description: The United States economy is heavily dependent upon a vast network of pipeline systems to transport and distribute the nation's energy resources. As this network of pipelines continues to age, monitoring and maintaining its structural integrity remains essential to the nation's energy interests. Numerous pipeline accidents over the past several years have resulted in hundreds of fatalities and billions of dollars in property damages. These accidents show that the current monitoring methods are … more
Date: March 1, 2006
Creator: Thien, Andrew B.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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