التفاصيل البيبلوغرافية
العنوان: |
Ultrasound Imaging of Stress Corrosion Cracking. |
المؤلفون: |
Hörchens, Lars, Wassink, Casper, Haines, Harvey |
المصدر: |
AIP Conference Proceedings; 2015, Vol. 1650 Issue 1, p891-898, 8p, 2 Color Photographs, 1 Diagram, 1 Chart, 5 Graphs |
مصطلحات موضوعية: |
ULTRASONIC imaging, STRESS corrosion cracking, TENSILE strength, FRACTURE mechanics, SURFACE roughness |
مستخلص: |
The formation of cracks in a corrosive environment in combination with tensile stresses is known as stress corrosion cracking. This type of degradation mechanism can lead to sudden and rapid failure of a structure. In a colony of cracks, it is desired to determine the position and depth of individual cracks in order to assess the remaining strength of the structure. In the present paper, acoustical imaging using inverse wave field extrapolation is applied to a pipe coupon exhibiting stress corrosion cracking. It is shown that individual cracks in the colony can be identified and sized. Aside from the direct path into the pipe wall, reflections from the inner and outer surface of the sample are used to determine accurately the extent of the surface-breaking cracks within the material. The images obtained during a scan can be stacked together to provide a three-dimensional visualization of the colony of cracks. [ABSTRACT FROM AUTHOR] |
|
Copyright of AIP Conference Proceedings is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |