You searched on: Author: joseph mccolskey
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11. FATIGUE CRACK GROWTH OF TWO X52 PIPELINE STEELS IN A PRESSURIZED HYDROGEN ENVIRONMENT
Andrew J Slifka, Elizabeth S Drexler, Neha N. Rustagi, Damian S Lauria, Joseph David McColskey, Robert L Amaro
Fatigue crack growth tests were conducted on two API 5L X52 pipeline steel alloys. One alloy was from a new linepipe that was installed for hydrogen service in 2011. The other alloy was from a vintage pipe that first saw natural gas service in 1964. ...
12. NIST Overview of Codes and Standards Activities
Joseph David McColskey
13. EFFECT OF ETHANOL FUEL AND MICROBIOLOGICALLY INFLUENCED CORROSION ON THE FATIGUE CRACK GROWTH BEHAVIOR OF PIPELINE STEELS
Jeffrey W Sowards, Timothy S Weeks, Joseph David McColskey, James R Fekete, Jain Luke, Charles Hall Davis Williamson
Ethanol fuel production and consumption is expected to increase significantly in the near future. Existing pipeline infrastructure could be repurposed to transport ethanol and other biofuels from production sources, such as those located in the Midw ...
14. Weld Design, Testing, and Assessment Procedures for High Strength Pipelines
Curved Wide Plate Tests
Timothy S Weeks, Joseph David McColskey, Mark D. Richards
15. Ductile-Fracture Resistance in X100 Pipeline Welds Measured with CTOA
Elizabeth S Drexler, Philippe P. Darcis, Christopher N McCowan, Jeffrey W Sowards, Joseph David McColskey, Thomas A. (Thomas A.) Siewert
A test for evaluation of resistance to ductile fracture (crack tip opening angle, CTOA) was found to reveal changes in crack propagation through the strain and strength gradients near weld joints in X100 pipeline steels. This test provides a long lig ...
16. High-temperature tensile constitutive data and models for structural steels in fire
Technical Note (NIST TN)
William E Luecke, Stephen W Banovic, Joseph David McColskey
This report documents the stress-strain behavior of a collection of structural steels recovered from the collapse of the World Trade Center. These steels, combined with literature data form the basis of a model for the stress-strain behavior of struc ...
17. Fracture of X100 Pipeline Steel:
Combined Experimental-Numerical Process
Mordechai Szanto, Christopher N McCowan, Elizabeth S Drexler, Joseph David McColskey
Accurate characterization of material fracture properties is necessary for reliable numerical prediction of rupture in gas pipelines. In the current work the ductile fracture properties for high strength X100 pipeline steel, was evaluated, using expe ...
18. United States Capitol Dome:Characterization of Cast and Wrought Materials
Christopher N McCowan, Thomas A. (Thomas A.) Siewert, David Olson, Joseph David McColskey
Restoration of the cast iron dome at the United States Capitol is needed because moisture is leaking into interior areas of the building due to corrosion damage. Microstructure, composition, and tensile properties of cast and wrought samples from th ...
19. Workshop on Quantitative Tools for Condition Assessment of Aging Infrastructure
NIST Interagency/Internal Report (NISTIR)
Ward L Johnson, Thomas A. (Thomas A.) Siewert, Jessica Terry, Dat Duthinh, Mark A Iadicola, William E Luecke, Joseph David McColskey
The Quantitative Tools for Condition Assessment of Aging Infrastructure Workshop was held May 4-5, 2010, in Boulder, Colorado. It was organized by a team of researchers within the National Institute of Standards and Technology s (NIST) Materials Scie ...
20. Fatigue Pre-Cracking Curved Wide Plates in Bending
Mark D. Richards, Timothy S Weeks, Joseph David McColskey, Bo Wang, Yong-Yi Wang
In support of using high strength steels for strain-based design of pipeline, curved wide plate (CWP) tests in tension are being performed on API 5L X100 pipes of 36-inch (916-mm) diameter and 0.75-inch (19-mm) wall thickness. The CWP tests are bein ...