Investigation of a nonlinear gradient elasticity model for the prediction of seismic waves

Abstract (2023)

Authors

Andrei B. Faragau Dynamics of Structures - CEG
Marten Hollm Hamburg University of Technology
Leo Dostal Hamburg University of Technology
A. Metrikine Engineering Structures , Hydraulic Engineering
K.N. van Dalen Dynamics of Structures - CEG
Research Group
Dynamics of Structures (CEG) (TU Delft)
More Info
expand_more

Published Date

2023

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Dynamics of Structures

Abstract

A novel nonlinear gradient elasticity model for predicting seismic wave behavior was proposed by the authors in previous studies, introducing higher-order gradient terms to account for small-scale soil heterogeneity and micro-structure. This work delves into various characteristics of the proposed model, focusing on the system’s response under initial conditions that induce different levels of nonlinearity. The results reveal that high nonlinearity in the initial conditions can lead to distinctive wave shapes and a non-zero plateau trailing behind the propagating wave. The greater the initial nonlinearity, the more pronounced this plateau becomes. These findings provide valuable insights into the behavior of the proposed nonlinear gradient elasticity model.

Files

Nodycon2023_GradientElasticity... (pdf)
(pdf | 0.254 Mb)
Unknown license