A two characteristic model for cohesionless soil and its calibration using optimization

Abdulazeez Abdulraheem; M. Omar Faruque; Musharraf Zaman

doi:10.1016/0749-6419(94)90006-X

A two characteristic model for cohesionless soil and its calibration using optimization

Abdulazeez Abdulraheem^*
, M. Omar Faruque
, Musharraf Zaman

^*Corresponding author for this work

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

Abstract

An elastro-plastic constitutive model is developed to characterize the stress-strain behavior of cohesionless soils. The model utilizes the concept of two characteristics states represented by two characteristic state lines in the stress space. The two characteristic state lines represent the state of the soil at failure and the state at which the soil passes from compressive to dilative mode of deformation during shearing. The proposed approach provides a better control in predicting volumetric behavior of cohesionless soils. To increase the accessibility and usefulness of the model and reduce the difficulty of the model calibration process, an optimization procedure is used to evaluate the material parameters associated with the model. The model is verified with respect to a test that is used for finding the parameters, and a number of other tests that are not used for finding the parameters. A good correlation between predictions and experimental data is observed.

Original language	English
Pages (from-to)	309-326
Number of pages	18
Journal	International Journal of Plasticity
Volume	10
Issue number	3
DOIs	https://doi.org/10.1016/0749-6419(94)90006-X
State	Published - 1994
Externally published	Yes

Bibliographical note

Funding Information:
Acknowledgements-The authors are grateful to Prof. N. Cristescu, University of Romania, for very helpful comments during his visit to the University of Oklahoma. Financial support for this work was provided in part by the Oklahoma Center for Advancement of Science and Technology (ORAL 125-8836) and the National Science Foundation through the Rock Mechanics Research Center (ORAL 125-5861). Technical assistance provided by Mr. Azecmuddin is gratefully acknowledged. Discussions with Dr. Abdelaziz Mohammed on the Simplex Algorithm provided by him also significantly benefitted this work.

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/0749-6419(94)90006-X

Cite this

@article{ddb69194aa8f4eba9720cbceebbd5b23,

title = "A two characteristic model for cohesionless soil and its calibration using optimization",

abstract = "An elastro-plastic constitutive model is developed to characterize the stress-strain behavior of cohesionless soils. The model utilizes the concept of two characteristics states represented by two characteristic state lines in the stress space. The two characteristic state lines represent the state of the soil at failure and the state at which the soil passes from compressive to dilative mode of deformation during shearing. The proposed approach provides a better control in predicting volumetric behavior of cohesionless soils. To increase the accessibility and usefulness of the model and reduce the difficulty of the model calibration process, an optimization procedure is used to evaluate the material parameters associated with the model. The model is verified with respect to a test that is used for finding the parameters, and a number of other tests that are not used for finding the parameters. A good correlation between predictions and experimental data is observed.",

author = "Abdulazeez Abdulraheem and \{Omar Faruque\}, M. and Musharraf Zaman",

note = "Funding Information: Acknowledgements-The authors are grateful to Prof. N. Cristescu, University of Romania, for very helpful comments during his visit to the University of Oklahoma. Financial support for this work was provided in part by the Oklahoma Center for Advancement of Science and Technology (ORAL 125-8836) and the National Science Foundation through the Rock Mechanics Research Center (ORAL 125-5861). Technical assistance provided by Mr. Azecmuddin is gratefully acknowledged. Discussions with Dr. Abdelaziz Mohammed on the Simplex Algorithm provided by him also significantly benefitted this work.",

year = "1994",

doi = "10.1016/0749-6419(94)90006-X",

language = "English",

volume = "10",

pages = "309--326",

journal = "International Journal of Plasticity",

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AU - Abdulraheem, Abdulazeez

AU - Omar Faruque, M.

AU - Zaman, Musharraf

N1 - Funding Information: Acknowledgements-The authors are grateful to Prof. N. Cristescu, University of Romania, for very helpful comments during his visit to the University of Oklahoma. Financial support for this work was provided in part by the Oklahoma Center for Advancement of Science and Technology (ORAL 125-8836) and the National Science Foundation through the Rock Mechanics Research Center (ORAL 125-5861). Technical assistance provided by Mr. Azecmuddin is gratefully acknowledged. Discussions with Dr. Abdelaziz Mohammed on the Simplex Algorithm provided by him also significantly benefitted this work.

PY - 1994

Y1 - 1994

N2 - An elastro-plastic constitutive model is developed to characterize the stress-strain behavior of cohesionless soils. The model utilizes the concept of two characteristics states represented by two characteristic state lines in the stress space. The two characteristic state lines represent the state of the soil at failure and the state at which the soil passes from compressive to dilative mode of deformation during shearing. The proposed approach provides a better control in predicting volumetric behavior of cohesionless soils. To increase the accessibility and usefulness of the model and reduce the difficulty of the model calibration process, an optimization procedure is used to evaluate the material parameters associated with the model. The model is verified with respect to a test that is used for finding the parameters, and a number of other tests that are not used for finding the parameters. A good correlation between predictions and experimental data is observed.

AB - An elastro-plastic constitutive model is developed to characterize the stress-strain behavior of cohesionless soils. The model utilizes the concept of two characteristics states represented by two characteristic state lines in the stress space. The two characteristic state lines represent the state of the soil at failure and the state at which the soil passes from compressive to dilative mode of deformation during shearing. The proposed approach provides a better control in predicting volumetric behavior of cohesionless soils. To increase the accessibility and usefulness of the model and reduce the difficulty of the model calibration process, an optimization procedure is used to evaluate the material parameters associated with the model. The model is verified with respect to a test that is used for finding the parameters, and a number of other tests that are not used for finding the parameters. A good correlation between predictions and experimental data is observed.

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JO - International Journal of Plasticity

JF - International Journal of Plasticity

IS - 3

ER -

A two characteristic model for cohesionless soil and its calibration using optimization

Abstract

Bibliographical note

ASJC Scopus subject areas

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