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You searched on: Author: joseph mccolskey

Displaying records 31 to 40 of 56 records.
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31. HYDROGEN PIPELINE RESEARCH AT NIST
Published: 3/31/2008
Authors: Thomas A. (Thomas A.) Siewert, Joseph David McColskey, Angelique N. Lasseigne
Abstract: In 2007, the National Institute of Standards and Technology greatly expanded its efforts in support of the use of hydrogen as a fuel.   Various NIST divisions have started projects on measurement needs in the areas of flow rates, storage, mater ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853598

32. The role of metallurgy in the NIST investigation of the world trade center towers collapse
Published: 11/1/2007
Authors: Stephen W Banovic, Timothy J Foecke, William E Luecke, Joseph David McColskey, Christopher N McCowan, Thomas A. (Thomas A.) Siewert, Frank W Gayle
Abstract: On August 21, 2002, on the direction of the U.S. Congress, the National Institute of Standards and Technology (NIST) initiated an investigation into the collapse of the World Trade Center (WTC) towers. In support of the overall investigation goals, t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900980

33. Fatigue Crack Growth Rates in Pipeline Steels Using Curved M(T) Specimens
Published: 10/23/2007
Authors: Philippe P. Darcis, John Matthew Treinen, Joseph David McColskey
Abstract: This study presents fatigue data for two different ferrite-pearlite pipeline steels. A fatigue crack growth test for full thickness curved pipeline samples was developed using a Middle Tension, M(T), type specimen. Also, FEA (Finite Element Analyses) ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50626

34. Crack Tip Opening Angle Optical Measurement Methods in Five Pipeline Steels
Published: 10/16/2007
Authors: Philippe P. Darcis, Christopher N McCowan, H. Windhoff, Joseph David McColskey, Thomas A. (Thomas A.) Siewert
Abstract: Crack tip opening angle (CTOA) is becoming one of the more widely accepted properties for characterizing fully plastic fracture. In fact, it has been recognized as a measure of the resistance of a material to fracture in cases where there is a large ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50504

35. Crack tip opening angle measurement through a girth welded in an X100 steel pipeline section
Published: 10/2/2007
Authors: Philippe P. Darcis, Christopher N McCowan, Joseph David McColskey, Richard Joel Fields
Abstract: Crack tip opening angle (CTOA) is becoming one of the accepted methods for characterizing fully plastic fracture. It provides a measure of the resistance to fracture for a material in cases where there is a large degree of stable-tearing crack extens ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50617

36. NIST Workshop on Materials Test Procedures for Hydrogen Pipelines
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6649
Published: 9/1/2007
Authors: Thomas A. (Thomas A.) Siewert, Joseph David McColskey, Richard E Ricker
Abstract: The Materials Reliability and Metallurgy Divisions have expanded their efforts to advance the technology for the construction, repair, and inspection of pipelines. One key factor is to identify and prioritize the research needs of the pipeline co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50600

37. Measurement of Weld Toughness - Crack Tip Opening Angle Criterion
Published: 6/1/2007
Authors: Philippe P. Darcis, Joseph David McColskey, Christopher N McCowan, Thomas A. (Thomas A.) Siewert
Abstract: The stable tearing behavior of X100 pipeline steel through a girth weld section was investigated using a modified double cantilever beam specimens. A test technique for direct measurement of the steady state crack tip opening angle (CTOA) criterion w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50527

38. Fracture Toughness through a Welded Pipeline Section - Crack Tip Opening Angle Criterion
Published: 4/23/2007
Authors: Philippe P. Darcis, Christopher N McCowan, Elizabeth S Drexler, Joseph David McColskey, Avigdor Shtechman, Thomas A. (Thomas A.) Siewert
Abstract: The increasing demand for natural gas as an alternative energy source implies continued growth of gas pipeline installations. This trend compels the natural gas transmission industry to consider the construction of larger-diameter, higher-pressure pi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50531

39. Crack Tip Opening Angle: Measurement and Modeling of Fracture Resistance in Low and High Strength Pipeline Steels
Published: 9/1/2006
Authors: Philippe P. Darcis, Joseph David McColskey, Christopher N McCowan, Thomas A. (Thomas A.) Siewert, Gabriel Kohn, Arry Bussiba, Richard Joel Fields
Abstract: Crack tip opening angle (CTOA) is becoming one of the more widely accepted properties for characterizing fully plastic fracture. In fact, it has been recognized as a measure of the resistance of a material to fracture, in cases where there is a large ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50312

40. Mechanical Properties of Structural Steels. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-3D)
Series: National Construction Safety Team Act Reports (NIST NCSTAR)
Report Number: 1-3
Published: 12/1/2005
Authors: William E Luecke, Joseph David McColskey, Christopher N McCowan, Stephen W Banovic, Richard Joel Fields, Timothy J Foecke, Thomas A. (Thomas A.) Siewert, Frank W Gayle
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101021



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