Journal article
Asymptotically Matched Layer (AML) for transient wave propagation in a moving frame of reference
Department of Civil Engineering, Technical University of Denmark1
Section for Geotechnics and Geology, Department of Civil Engineering, Technical University of Denmark2
Department of Mechanical Engineering, Technical University of Denmark3
Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark4
The paper presents an Asymptotically Matched Layer (AML) formulation in a moving frame of reference for transient dynamic response of a multi-layer 2D half-space. A displacement based finite element formulation of the convected domain problem is presented together with the AML formulation in which the original convolution integrals are represented via two auxiliary displacement-like state-space variables.
A parametric study of the AML parameters is conducted for optimizing the absorbing properties. The performance is demonstrated on a single- and a two-layered half-space for various velocities of an impulse Ricker load. Excellent absorbing properties are demonstrated in both half spaces.
Language: | English |
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Year: | 2017 |
Pages: | 124-133 |
ISSN: | 18737633 and 0266352x |
Types: | Journal article |
DOI: | 10.1016/j.compgeo.2016.09.005 |
ORCIDs: | Madsen, Stine Skov and Krenk, Steen |