Development of guided wave simulator and application to sizing methodologies of pipe wall thinning

This paper is concerned with structural health monitoring techniques for pipe wall thinning using ultrasonic guided wave methods. First, our inspection model can be represented by linear elastic systems on a cylindrical shell. Secondly, numerical scheme of inspection is developed by Fourier-Galerkin approximations. Thirdly, we propose a computational method for identifying position, range, and sizing of flow accelerated corrosion (FAC). Finally, the effectiveness and validity are demonstrated through computational experiments.