Abstract:
A three-dimensional direct problem of ultrasonic nondestructive testing of a railroad rail treated as a linear elastic medium is solved by applying a grid-characteristic method on curved structured Chimera and Cartesian background meshes. The algorithm involves mutual interpolation between Chimera and Cartesian meshes that takes into account the features of the transition from curved to Cartesian meshes in three-dimensional space. An analytical algorithm for generating Chimera meshes is proposed. The convergence of the developed numerical algorithms under mesh refinement in space is analyzed. A comparative analysis of the full-wave fields of the velocity modulus representing the propagation of a perturbation from its source is presented.
Citation:
A. A. Kozhemyachenko, A. V. Favorskaya, “Grid convergence analysis of grid-characteristic method on Chimera meshes in ultrasonic nondestructive testing of railroad rail”, Zh. Vychisl. Mat. Mat. Fiz., 63:10 (2023), 1687–1705; Comput. Math. Math. Phys., 63:10 (2023), 1886–1903
This publication is cited in the following 3 articles:
E. Pesnya, I. B. Petrov, “Dynamic Processes Calculation in Composites Considering Internal Structure Using the Grid-Characteristic Method”, Lobachevskii J Math, 45:1 (2024), 319
Lihong Wei, Aldrin D. Calderon, Peng Tian, F. Song, Q. Chen, M. Anpo, “Research on Ultrasonic Nondestructive Testing Algorithm for Metal Materials”, E3S Web Conf., 561 (2024), 03016
Waleed Khalid, Vasily Golubev, Ilia Nikitin, Boris Stratula, “Simulation of Cycling Damage under High-Frequency Loading with Grid-Characteristic Method on Overlapping Meshes”, Math Models Comput Simul, 16:S1 (2024), S66