| Title |
Validation Study on Processing Grip Part of Tensile Specimen Acquired from Corroded Pipeline |
| Authors |
남영준(Nam, Young Jun) ; 김정현(Kim, Jeong Hyun) ; 배철호(Bae, Cheol Ho) ; 임윤묵(Lim, Yun Mook) |
| DOI |
https://doi.org/10.12652/Ksce.2020.40.2.0191 |
| Keywords |
부식;시편 가공;인장 실험;잔존 성능 Corrosion;Specimen processing;Tensile test;Load carrying capacity |
| 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. |