A flexible and robust yield function for geomaterials
| Autor: | Michael A. Hicks, Philip J. Vardon, William M. Coombs, Ali Golchin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Yield (engineering)
Yield surface Mechanical Engineering Stress space Computational Mechanics General Physics and Astronomy Type (model theory) Yield function Computer Science Applications Mechanics of Materials Robust Range (statistics) Stress integration Implicit stress integration Uniqueness Biological system Flexible Non-singular Mathematics |
| Zdroj: | Computer methods in applied mechanics and engineering, 2021, Vol.387, pp.114162 [Peer Reviewed Journal] Computer Methods in Applied Mechanics and Engineering, 387 |
| ISSN: | 0045-7825 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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