Fe-pml Modeling of 3d Scattering of Transient Elastic Waves in Cracked Plate With Rectangular Cross Section
Autor(en): |
Abdel-Rahman Mahmoud
Nipon Rattanawangcharoen Yunhua Luo Quan Wang |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | International Journal of Structural Stability and Dynamics, Dezember 2010, n. 5, v. 10 |
Seite(n): | 1123-1139 |
DOI: | 10.1142/s0219455410003932 |
Abstrakt: |
This paper proposes a finite-element (FE) and perfectly matched layer (PML)modeling of three-dimensional (3D) scattering of transient elastic waves in a cracked infinite plate with rectangular cross-section. The FE predictions are validated against 3D semi-analytical literature results. The effects of PML parameters on a root-mean-square error estimate are measured against the reference FE predictions computed using extended meshes. The proposed model is shown, through the numerical examples, to offer huge saving in real run-time at a slight degradation in accuracy. Practical applications indicate its potential in modeling elastic-wave-based nondestructive evaluation of engineering structures. |
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14.08.2019