Cable corrosion experiments and nondestructive testing research using guided wave based on magnetostrictive effect

Speaker:
Zou, Yiqing; Liuzhou OVM Machinery Co., Ltd.; China

Authors:
Huang, Y.; Liuzhou OVM Machinery Co. Ltd.; China
Jiang, L; Liuzhou OVM Machinery Co. Ltd.; China
Wu, X.; Huazhong University of Science and Technology; China
Xie, Z.; Liuzhou OVM Machinery Co. Ltd.; China
Zhang, Y.; Liuzhou OVM Machinery Co. Ltd.; China
Zhi, L.; Liuzhou OVM Machinery Co. Ltd.; China
Zou, Y.; Liuzhou OVM Machinery Co. Ltd.; China

ID: ECNDT-0384-2018
Session: Civil Infrastructure 3
Room: J1
Date: 2018-06-12
Time: 09:00 - 09:20

Cable as the main bearing components, the effective metallic loading area of the cable is directly related to the safety and service life of the overall structure. Based on the experimental study of the wire broken, cable corrosion experiments and nondestructive testing research using guided wave based on magnetostrictive effect. The long-term corrosion of the two cables was carried out by drilling the HDPE sheath of the cable and slowly dropping the corrosive solution with the hanging bottle. At the same time, the magnetostrictive guided wave nondestructive testing is done periodically. After more than six months of accelerated corrosion experiments and testing, it is found that the magnetostrictive guided wave detection method can be sensitive to feedback cable corrosion. The corrosion signal processing method are different from wire broken. According to the experiments, the signal are characterized by long range corrosion and rapid energy attenuation. The experimental results provide effective evidence for future cable corrosion NDT and cable state evaluation.