Golchin, A. and Vardon, P.J. and Hicks, M.A. and Coombs, W.M. (2021) 'A flexible and robust yield function for geomaterials.', Computer methods in applied mechanics and engineering., 387 . p. 114162.
This paper presents a new Modified Cam Clay (MCC) type yield function, that is designed for robust and efficient use with implicit stress integration algorithms. The proposed yield function attains non-elliptical (e.g. tear and bullet) shapes, as well as the typical elliptical shape of the MCC model. Like that of MCC, and unlike most other yield functions with non-elliptical shapes available in literature, it is non-singular and unique throughout stress space. The experimental yielding stresses of a wide range of geomaterials have been accurately simulated using the yield surface. The yield function can be used in constitutive models based on classical elasto-plasticity theory.
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|Publisher Web site:||https://doi.org/10.1016/j.cma.2021.114162|
|Publisher statement:||© 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).|
|Date accepted:||29 August 2021|
|Date deposited:||31 August 2021|
|Date of first online publication:||21 October 2021|
|Date first made open access:||21 October 2021|
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