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http://dx.doi.org/10.12652/Ksce.2020.40.2.0191

Validation Study on Processing Grip Part of Tensile Specimen Acquired from Corroded Pipeline  

Nam, Young Jun (Yonsei University)
Kim, Jeong Hyun (K-water)
Bae, Cheol Ho (K-water)
Lim, Yun Mook (Yonsei University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.40, no.2, 2020 , pp. 191-195 More about this Journal
Abstract
In this work, tensile tests, one of the most common test method to assess the condition of a corroded pipe, were conducted. According to ASTM E8 method, the use of flat or curved uni-axial tension test is allowed under the recommendation with the usage of grips corresponding to a curvature of the pipe. However, this method is not for corroded specimen. Furthermore, in the case of performing the multiple tensile tests with various curvatures, it is desirable not to produce zigs that fit each curvatures, if merely processing the specimen grip with curvature into the flat grip can show almost identical tensile behavior. Therefore, various tension simulations were conducted first to check if there exist any differences. Also, experiments on corroded tensile specimen were conducted and compared with the FEM simulation that reflects the actual geometry acquired from the 3D scanner.
Keywords
Corrosion; Specimen processing; Tensile test; Load carrying capacity;
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