<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The paper concerns the characteristic parameters of the selected isotropic failure criteria, i.e. Mohr–Coulomb, Drucker–Prager, Matsuoka–Nakai and Lade–Duncan. The parameters are determined directly from the failure criteria and stress measurements or by semi-theoretical approach, assuming that the soil obeys the associated flow rule and using the plane strain condition. In the latter case, the parameters can be expressed as functions of the plane strain internal friction angle, which is determined from measurements. The principal stress tensor components, corresponding to the soil peak strength and necessary to obtain the failure criteria parameters, are measured in a series of true triaxial, plane strain tests, on coarse Skarpa sand samples of different initial relative density, subjected to various confining pressures.</p>
</abstract>

The paper concerns the characteristic parameters of the selected isotropic failure criteria, i.e. Mohr–Coulomb, Drucker–Prager, Matsuoka–Nakai and Lade–Duncan. The parameters are determined directly from the failure criteria and stress measurements or by semi-theoretical approach, assuming that the soil obeys the associated flow rule and using the plane strain condition. In the latter case, the parameters can be expressed as functions of the plane strain internal friction angle, which is determined from measurements. The principal stress tensor components, corresponding to the soil peak strength and necessary to obtain the failure criteria parameters, are measured in a series of true triaxial, plane strain tests, on coarse Skarpa sand samples of different initial relative density, subjected to various confining pressures.

Characteristic parameters of soil failure criteria for plane strain conditions – experimental and semi-theoretical study

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution 4.0 International License.

The paper concerns the characteristic parameters of the selected isotropic failure criteria, i.e. Mohr–Coulomb, Drucker–Prager, Matsuoka–Nakai and Lade–Duncan....

Characteristic parameters of soil failure criteria for plane strain conditions – experimental and semi-theoretical study

Article Category: Original Study

Published Online: Sep 30, 2021

Page range: 237 - 254

Received: Jan 12, 2021

Accepted: Apr 29, 2021

DOI: https://doi.org/10.2478/sgem-2021-0015

Keywords
soil failure criteria, soil peak strength, plane strain conditions, true triaxial apparatus, plastic flow rule

© 2021 Justyna Sławińska-Budzich, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Characteristic parameters of soil failure criteria for plane strain conditions – experimental and semi-theoretical study

Article Category: Original Study

Published Online: Sep 30, 2021

Page range: 237 - 254

Received: Jan 12, 2021

Accepted: Apr 29, 2021

DOI: https://doi.org/10.2478/sgem-2021-0015

Keywordssoil failure criteria, soil peak strength, plane strain conditions, true triaxial apparatus, plastic flow rule

© 2021 Justyna Sławińska-Budzich, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
soil failure criteria, soil peak strength, plane strain conditions, true triaxial apparatus, plastic flow rule