Bayesian inference to identify parameters in viscoelasticity

Hussein Rappel, Lars A.A. Beex, Stéphane P.A. Bordas

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This contribution discusses Bayesian inference (BI) as an approach to identify parameters in viscoelasticity. The aims are: (i) to show that the prior has a substantial influence for viscoelasticity, (ii) to show that this influence decreases for an increasing number of measurements and (iii) to show how different types of experiments influence the identified parameters and their uncertainties. The standard linear solid model is the material description of interest and a relaxation test, a constant strain-rate test and a creep test are the tensile experiments focused on. The experimental data are artificially created, allowing us to make a one-to-one comparison between the input parameters and the identified parameter values. Besides dealing with the aforementioned issues, we believe that this contribution forms a comprehensible start for those interested in applying BI in viscoelasticity.

Original languageEnglish
Pages (from-to)221-258
Number of pages38
JournalMechanics of Time-Dependent Materials
Volume22
Issue number2
DOIs
Publication statusPublished - 1 May 2018

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