Premium
Dynamic‐stiffness matrix of unbounded soil by finite‐element multi‐cell cloning
Author(s) -
Wolf John P.,
Song Chongmin
Publication year - 1994
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290230302
Subject(s) - finite element method , cloning (programming) , stiffness matrix , stiffness , matrix (chemical analysis) , direct stiffness method , range (aeronautics) , mathematics , mathematical analysis , computer science , mathematical optimization , structural engineering , engineering , materials science , composite material , programming language , aerospace engineering
To calculate the dynamic‐stiffness matrix of the unbounded soil, a multi‐cell cloning algorithm based solely on the finite‐element formulation is developed. A non‐linear system of equations has to be solved iteratively once for the whole range of frequency. For a specific frequency, two‐ and three‐cell cloning lead to highly accurate results, which is demonstrated by examples of increasing complexity.