A deformation (strain) envelope for cyclic disturbed sand

Autor: Sabaliauskas, Tomas, Ibsen, Lars Bo
Jazyk: angličtina
Rok vydání: 2019
Předmět:
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