Simplifying calibration of bonded elasto-plastic models

Sara Rios; Matteo Ciantia; Nubia Gonzalez; Marcos Arroyo; António Viana da Fonseca

doi:10.1016/j.compgeo.2015.11.019

Simplifying calibration of bonded elasto-plastic models

Sara Rios
, Matteo Ciantia
, Nubia Gonzalez
, Marcos Arroyo
, António Viana da Fonseca

Civil Engineering

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Using realistic constitutive models for artificially cemented soils is advantageous in design. However, the price of that increased realism is often a more elaborate model, which is difficult to calibrate. A database of high quality triaxial tests on compacted cemented silty sand is used to calibrate and validate a generalized critical state bonded soil model. The exercise highlights the staged calibration procedure that is convenient in this kind of application. The calibration results have shown a direct relation between added yield strength and a well-established soil-cement mixture ratio, which facilitates the application of the model in design. It is shown that such relation can be also deduced from the analysis of unconfined compressive strength tests.

Original language	English
Pages (from-to)	100-108
Number of pages	9
Journal	Computers and Geotechnics
Volume	73
Early online date	19 Dec 2015
DOIs	https://doi.org/10.1016/j.compgeo.2015.11.019
Publication status	Published - 1 Mar 2016

Keywords

CASM model
Cemented sand
Constitutive model
High pressure triaxial tests
Porosity-cement ratio

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Computer Science Applications

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10.1016/j.compgeo.2015.11.019

Cite this

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title = "Simplifying calibration of bonded elasto-plastic models",

abstract = "Using realistic constitutive models for artificially cemented soils is advantageous in design. However, the price of that increased realism is often a more elaborate model, which is difficult to calibrate. A database of high quality triaxial tests on compacted cemented silty sand is used to calibrate and validate a generalized critical state bonded soil model. The exercise highlights the staged calibration procedure that is convenient in this kind of application. The calibration results have shown a direct relation between added yield strength and a well-established soil-cement mixture ratio, which facilitates the application of the model in design. It is shown that such relation can be also deduced from the analysis of unconfined compressive strength tests.",

keywords = "CASM model, Cemented sand, Constitutive model, High pressure triaxial tests, Porosity-cement ratio",

author = "Sara Rios and Matteo Ciantia and Nubia Gonzalez and Marcos Arroyo and \{da Fonseca\}, \{Ant{\'o}nio Viana\}",

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language = "English",

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TY - JOUR

T1 - Simplifying calibration of bonded elasto-plastic models

AU - Rios, Sara

AU - Ciantia, Matteo

AU - Gonzalez, Nubia

AU - Arroyo, Marcos

AU - da Fonseca, António Viana

PY - 2016/3/1

Y1 - 2016/3/1

N2 - Using realistic constitutive models for artificially cemented soils is advantageous in design. However, the price of that increased realism is often a more elaborate model, which is difficult to calibrate. A database of high quality triaxial tests on compacted cemented silty sand is used to calibrate and validate a generalized critical state bonded soil model. The exercise highlights the staged calibration procedure that is convenient in this kind of application. The calibration results have shown a direct relation between added yield strength and a well-established soil-cement mixture ratio, which facilitates the application of the model in design. It is shown that such relation can be also deduced from the analysis of unconfined compressive strength tests.

AB - Using realistic constitutive models for artificially cemented soils is advantageous in design. However, the price of that increased realism is often a more elaborate model, which is difficult to calibrate. A database of high quality triaxial tests on compacted cemented silty sand is used to calibrate and validate a generalized critical state bonded soil model. The exercise highlights the staged calibration procedure that is convenient in this kind of application. The calibration results have shown a direct relation between added yield strength and a well-established soil-cement mixture ratio, which facilitates the application of the model in design. It is shown that such relation can be also deduced from the analysis of unconfined compressive strength tests.

KW - CASM model

KW - Cemented sand

KW - Constitutive model

KW - High pressure triaxial tests

KW - Porosity-cement ratio

UR - https://www.scopus.com/pages/publications/84949921061

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DO - 10.1016/j.compgeo.2015.11.019

M3 - Article

AN - SCOPUS:84949921061

SN - 0266-352X

VL - 73

SP - 100

EP - 108

JO - Computers and Geotechnics

JF - Computers and Geotechnics

ER -

Simplifying calibration of bonded elasto-plastic models

Abstract

Keywords

ASJC Scopus subject areas

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