Probabilistic characterization of a high-cycle accumulation model for sands

M. Birrell, C. Pastén, J. A. Abell, R. Astroza*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, we employ a Bayesian approach to estimate the parameters of a high cycle accumulation model for sands using experimental data. Global sensitivity analysis and Markov-Chain Monte Carlo simulation are conducted for each of the twenty-four available experimental drained triaxial test results, considering the effect of estimating soil parameters at each strain-cycle under several loading conditions. Probability distributions inferred from each data source are then combined to obtain a single distribution for model parameters. Model calibration is then validated against new observations. The accumulated strain model is calibrated through explicit computation of strain at each cycle and the strain dependence of model parameters is included through the cyclic variation of the model constants.

Original languageEnglish
Article number104798
JournalComputers and Geotechnics
Volume147
DOIs
StatePublished - Jul 2022

Bibliographical note

Funding Information:
R. Astroza and C. Pastén acknowledge the support from the Chilean National Research and Development Agency (ANID), FONDECYT projects No. 1200277 and 1190995, respectively. M. Birrell acknowledges the support of ANID through Beca Doctorado Nacional No. 21210182.

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

  • Bayesian estimation
  • High cycle accumulation model
  • Ratcheting
  • Sensitivity analysis

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