Autor: |
Sabaliauskas, Tomas, Ibsen, Lars Bo |
Jazyk: |
angličtina |
Rok vydání: |
2019 |
Předmět: |
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Zdroj: |
Sabaliauskas, T & Ibsen, L B 2019, ' A deformation (strain) envelope for cyclic disturbed sand ', Soils & Foundations . |
Popis: |
Recent advances in triaxial testing procedures revealed new properties governing disturbed sand stiffness. This paper summarizes the new observationsinto an original, proof of concept. The novel concept interpolates effective stresswithin a strain (deformation) envelope. Coulomb stress limits are still satisfied,but the stresses are interpolated using a deformation (strain) envelope. Themethod is not part of a constitutive formulation, but is remarkably functionalin triaxial testing practice. The practicality is proven by plotting simulationson top of empirically measured stiffness history - the fitting is remarkably goodeven during tests of extreme complexity.The novelty has substantial interdisciplinary potential: offshore anchors andfoundations, earthquakes and industrial processes - wherever dynamic loads anddisturbed sand are encountered. It opens the door to a new branch of numericalmodels and a new philosophy of triaxial testing. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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