Parameter identification of constitutive models for fluidsaturated porous media within an FE-setting

Mahnken, R. and Steinmann, P. (2000) Parameter identification of constitutive models for fluidsaturated porous media within an FE-setting. ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik, 80(S1), S161-S164. (doi: 10.1002/zamm.20000801341)

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Abstract

In this contribution an FE-algorithm for parameter identification of geometrically-linear fluid-saturated porous media is proposed, in which non-uniform distributions of the state variables such as stresses, strains and excess pore fluid pressure gradient are taken into account. Thereby, a least-squares functional consisting of experimental and simulated data is minimized, and where the simulated data are obtained with the FE-method. In order to improve the efficiency of the minimization process, a gradient-based optimization algorithm is applied, and therefore the corresponding sensitivity analysis is briefly explained. The performance of the strategy is demonstrated for a slope stability problem.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Steinmann, Professor Paul
Authors: Mahnken, R., and Steinmann, P.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik
Publisher:Wiley
ISSN:0044-2267
ISSN (Online):1521-4001

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