A deformation (strain) envelope for cyclic disturbed sand

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Recent advances in triaxial testing procedures revealed new properties governing disturbed sand stiffness. This paper summarizes the new observations
into an original, proof of concept. The novel concept interpolates effective stress
within a strain (deformation) envelope. Coulomb stress limits are still satisfied,
but the stresses are interpolated using a deformation (strain) envelope. The
method is not part of a constitutive formulation, but is remarkably functional
in triaxial testing practice. The practicality is proven by plotting simulations
on top of empirically measured stiffness history - the fitting is remarkably good
even during tests of extreme complexity.

The novelty has substantial interdisciplinary potential: offshore anchors and
foundations, earthquakes and industrial processes - wherever dynamic loads and
disturbed sand are encountered. It opens the door to a new branch of numerical
models and a new philosophy of triaxial testing.
OriginalsprogEngelsk
TidsskriftSoils & Foundations
ISSN0038-0806
StatusAfsendt - 2019

Fingerprint

stiffness
Sand
sand
Testing
anchor
Stiffness
Dynamic loads
Anchors
earthquake
Earthquakes
history
test
industrial process

Emneord

  • Strain-space plasticity
  • Strain envelope
  • Frictionless triaxial
  • Disturbed soil
  • Disturbed sand
  • Yield strain

Citer dette

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title = "A deformation (strain) envelope for cyclic disturbed sand",
abstract = "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.",
keywords = "Strain-space plasticity, Strain envelope, Frictionless triaxial, Disturbed soil, Disturbed sand, Yield strain, Strain-space plasticity, Strain envelope, Frictionless triaxial, Disturbed soil, Disturbed sand, Yield strain",
author = "Tomas Sabaliauskas and Ibsen, {Lars Bo}",
year = "2019",
language = "English",
journal = "Soils & Foundations",
issn = "0038-0806",
publisher = "Japanese Geotechnical Society",

}

A deformation (strain) envelope for cyclic disturbed sand. / Sabaliauskas, Tomas; Ibsen, Lars Bo.

I: Soils & Foundations, 2019.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - A deformation (strain) envelope for cyclic disturbed sand

AU - Sabaliauskas, Tomas

AU - Ibsen, Lars Bo

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

KW - Strain-space plasticity

KW - Strain envelope

KW - Frictionless triaxial

KW - Disturbed soil

KW - Disturbed sand

KW - Yield strain

KW - Strain-space plasticity

KW - Strain envelope

KW - Frictionless triaxial

KW - Disturbed soil

KW - Disturbed sand

KW - Yield strain

M3 - Journal article

JO - Soils & Foundations

JF - Soils & Foundations

SN - 0038-0806

ER -