From Event: SPIE Smart Structures + Nondestructive Evaluation, 2023
Pipeline is the main transportation mode of oil and gas resources. However, most pipelines are subject to harsh natural environments, such as external force and temperature fluctuations in addition to the adverse environment. The use of ultrasonic guided wave based nondestructive testing technology for long-term monitoring of the stress in pipeline structure can effectively avoid such disasters. This paper focuses on the propagation characteristics of longitudinal guided waves in pipeline structures subjected to axial stress, to examine the possible applications of various guided wave modes for the stress detection in pipeline structures. Analyzing the generated numerical results, a method for estimating the stress from the velocity variation is proposed. The proposed method has practical applications for pipe stress monitoring using guided waves.
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Ziyue Li, Jinxia Liu, Linna Fu, Zhiwen Cui, and Tribikram Kundu, "Effect of axial stresses on longitudinal guided waves in pipe structures," Proc. SPIE 12488, Health Monitoring of Structural and Biological Systems XVII, 124880A (Presented at SPIE Smart Structures + Nondestructive Evaluation: March 13, 2023; Published: 25 April 2023); https://doi.org/10.1117/12.2657665.