2004/04/14 by Jean-Philippe Groby, Jean‐Philippe Groby, Groby, Jean-Philippe +4
Computer Science · Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Advanced Mathematical Modeling in Engineering #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Seismic Imaging and Inversion Techniques #Seismic Performance and Analysis #physics.comp-ph
paper · pdf · doi:10.48550/arxiv.physics/0404067
22 pages, 8 figures, submitted to SDEE
arxiv created 2004/04/14 · openalex publication_date 2004/04/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the seismic response of idealized 2D cities, constituted by non equally-spaced, non equally-sized homogenized blocks anchored in a soft layer overlying a hard half space. The blocks and soft layer are occupied by dissipative media. To simulate such response, we use an approximation of the viscoelastic modulus by a low-order rational function of frequency and incorporate this approximation into a first-order-in-time scheme. Our results display spatially-variable, strong, long-duration responses inside the blocks and on the ground, which qualitatively match the responses observed in some earthquake-prone cities of Mexico, France, the USA, etc.