A chart solution for the calibration of UBCSAND model

Elia Voyagaki; Tadahiro Kishida; Rusul Falah Aldulaimi; George Mylonakis

doi:10.3208/jgssp.v10.OS-29-06

Numerical and constitutive models for dynamic analysis 4

A chart solution for the calibration of UBCSAND model

Elia Voyagaki, Tadahiro Kishida, Rusul Falah Aldulaimi, George Mylonakis

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Keywords: UBCSAND, drained triaxial tests, analytical solution , numerical integration, graphical calibration

JOURNAL FREE ACCESS

2024 Volume 10 Issue 40 Pages 1527-1532

DOI https://doi.org/10.3208/jgssp.v10.OS-29-06

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Abstract

A novel graphical calibration technique for UBCSAND model parameters is presented and compared to: (1) a numerical approach based on minimization of residuals; and (2) an informed trial-and-error approach based on a rigorous analytical integration. Errors in the numerical integration of the model are identified and minimised by comparing the analytical solution against results from an Euler integration. Variations in the calibrated parameters are discussed for drained monotonic triaxial loading considering different types of aggregates.

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