Publications Portal

You searched on:
Author: elizabeth drexler

Displaying records 11 to 20 of 26 records.
Resort by: Date / Title

11. 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 Allen 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

12. Stress-strain behavior of rat pulmonary arteries
Published: 1/1/2007
Authors: Elizabeth S Drexler, J Wright, Andrew J Slifka, Christopher N McCowan, Dunbar Ivy, Robin Shandas
Abstract: The stress-strain behavior of rat pulmonary arteries was studied using a bubble inflation technique. To obtain mechanical properties, an analytical method to evaluate the bubble test results was developed. A flat disk of rat pulmonary artery was cons ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50074

13. Report of Workshop on Measurement Methods for Evaluation of the Reliability of Active Implantable Medical Devices
Series: Special Publication (NIST SP)
Report Number: 1047
Published: 5/1/2006
Authors: Elizabeth S Drexler, W F Regnault, John A Tesk
Abstract: This report summarizes the activities of the Workshop on Measurement Methods for Evaluation of the Reliability of Active Implantable Medical Devices, held October 3 and 4, 2005 in Gaithersburg, MD. The two-day workshop brought together representative ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50311

14. Implementation and Application of a Microstructurally Based Orthotropic Hyperelastic Model of Pulmonary Artery Mechanics under Normotensive and Hypertensive Conditions
Published: 8/1/2005
Authors: Yang Zhang, Martin Dunn, Elizabeth S Drexler, Christopher N McCowan, Andrew J Slifka, Dunbar Ivy, Robin Shandas
Abstract: We implemented, validated, and applied a microstructurally based orthotropic hyperelastic constitutive model to simulate pulmonary artery mechanics under normotensive and hypoxic hypertensive conditions. The configuration of the model microstructure ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=30006

15. Comparison of Strength Properties of Normotensive and Hypertensive Rat Pulmonary Arteries
Published: 10/1/2004
Authors: Elizabeth S Drexler, Christopher N McCowan, J Wright, Andrew J Slifka, Dunbar Ivy, Robin Shandas
Abstract: A series of tests were conducted to quantify the difference in the mechanical properties of normo-and hypertensive pulmonary arteries. A bubble-test design was emplpoyed to measure the biaxial properties of a segment of artery. The test results compa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851344

16. Fracture Toughness Measurement of Chromium Nitride Films on Brass
Published: 7/1/2004
Authors: M Krishnamurthy, I Reimanis, J Berger, Elizabeth S Drexler
Abstract: Two methods of measureing the fracture toughness of films are critically examined using well-characterized films of CrN and Cr^d2^N approximately 6(mu)m in thickness bonded to brass. The first method invokes a model developed by Beuth and Klingbeil ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851332

17. An Experimental Method for Measuring Mechanical Properties of Rat Pulmonary Arteries Verified With Latex
Series: Journal of Research (NIST JRES)
Published: 6/1/2003
Authors: Elizabeth S Drexler, Andrew J Slifka, J Wright, Christopher N McCowan, Dudley Finch, Timothy P Quinn, J D McCloskey, Dunbar Ivy, Robin Shandas
Abstract: A study of the biomechanics and hemodynamics of pulmonary hypertension is incomplete without including mechanical properties data comparing healthy and diseased arterial tissue. In the initial stabe of this study, Sprague-Dawley rats will be induced ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851318

18. Strain Measurements in Thermally-Loaded Circuit Boards Containing Embedded Resistors
Published: 5/1/2002
Authors: Elizabeth S Drexler, R C Snogren, M C Snogren, J J Felten, P A Green
Abstract: Four specimens of embedded resistors were tested from room temperature to the processingtemperature (177 C) to compare deformations in the printed wiring board (PWB) using electron-beam moire. The specimens had different termination sizes and geomet ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851253

19. Thermomechanical Effects in Embedded Passive Materials
Published: 4/1/2002
Authors: Andrew J Slifka, Elizabeth S Drexler
Abstract: Thermomechanical fatigue was measured using electron-beam moire (EBM) and infrared (IR) microscopy. A specimen was made using FR-4 printed wiring board, (PWB), a silver-filled conductive adhesive, and a carbon-filled conductive paste. Both filled p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851232

20. Characterization of Interfaces Involving Electrically Conductive Adhesives Using Electron-Beam Moire and Infrared Microscopy
Published: 3/1/2002
Authors: Andrew J Slifka, Elizabeth S Drexler
Abstract: The complimentary techniques of electron-beam moire and infrared microscopy were used to determine the mechanical and thermal degradation of interfaces involving electrically conductive adhesives. The infrared microscopy technique was used to examin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851290