Characteristic Behavior of Drained and Undrained Triaxial Compression Tests: DEM Study
| العنوان: | Characteristic Behavior of Drained and Undrained Triaxial Compression Tests: DEM Study |
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| المؤلفون: | Hoang Bao Khoi Nguyen, Md. Mizanur Rahman, Andy Fourie |
| المساهمون: | Nguyen, HBK, Rahman, MM, Fourie, AB |
| المصدر: | Journal of Geotechnical and Geoenvironmental Engineering. 144 |
| بيانات النشر: | American Society of Civil Engineers (ASCE), 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | discrete element method (DEM), 0211 other engineering and technologies, 020101 civil engineering, 02 engineering and technology, Geotechnical Engineering and Engineering Geology, Discrete element method, 0201 civil engineering, Behavioral traits, Geotechnical engineering, Triaxial compression, drained triaxial tests, Geology, 021101 geological & geomatics engineering, General Environmental Science |
| الوصف: | Undrained and drained triaxial compression tests were simulated using the discrete element method (DEM). It was found that the transition states between contractive and dilative behavior of dense specimens, that is, the characteristic (Ch) and phase transformation (PT)states for drained and undrained conditions, respectively, are the same state in terms of stress ratio and fabric quantity (FᵥM). The transition was not due to the change in number of particle contacts, that is, coordination number (CN). A unique critical state (CS) line was obtained fora large range of mean effective stresses (p') for both drained and undrained simulations, which facilitates further analysis in term of the state parameter (ψ). Because PT, Ch states, and CS were representative of sand behavior, the SANISAND model was adopted to predict DEM simulations. Despite some limitations, the model can predict overall trends of shearing response and produce adequate qualitative behavior such CS, PT, or Ch states of DEM simulations. Refereed/Peer-reviewed |
| تدمد: | 1943-5606 1090-0241 |
| DOI: | 10.1061/(asce)gt.1943-5606.0001940 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0262e7739551cbb7ff6f9f1a0b78d3c https://doi.org/10.1061/(asce)gt.1943-5606.0001940 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....f0262e7739551cbb7ff6f9f1a0b78d3c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19435606 10900241 |
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| DOI: | 10.1061/(asce)gt.1943-5606.0001940 |