Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D

Bjørn S. Knudsen, Martin Underlin Østergaard, Johan Clausen

Eksport af forskningsdata: Bog/antologi/afhandling/rapportRapportForskning

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Resumé

To perform tests on bucket foundations, full-scale testing is rarely used since it is rather expensive. Instead small-scale testing is done to examine the static and dynamic behaviour of such structures. In the laboratory at Aalborg University, small-scale testing of offshore support structures can be performed in a pressure tank, where a pressure can be applied in order to simulate deep water situations. Since the test set-up is downscaled 15 to 30 times compared to real-life structures, stresses and strains will be downscaled too. For soils, normally a Mohr-Coulomb failure criterion is used, and in the region of small stresses, a non-linear behaviour is observed - unlike the linear behaviour normally assumed in Mohr-Coulomb. To better model this non-linearity, a stress-dependent model for the strength of the soil material is sought to be implemented in PLAXIS 3D through FORTRAN to improve the computational accuracy of small-scale tests.
OriginalsprogEngelsk
UdgivelsesstedAalborg
Forlag/udgivende institutionDepartment of Civil Engineering, Aalborg University
Antal sider14
PublikationsstatusUdgivet - 2013
Publikations serierDCE Technical Memorandum
Kommatal32
ISSN1901-7278

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Testing
Soils
Water

Emneord

  • Bucket foundations
  • Pressure tank
  • Small-scale tests
  • Tests
  • PLAXIS 3D
  • FORTRAN

Citer dette

Knudsen, B. S., Østergaard, M. U., & Clausen, J. (2013). Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D. Aalborg: Department of Civil Engineering, Aalborg University. DCE Technical Memorandum, Nr. 32
Knudsen, Bjørn S. ; Østergaard, Martin Underlin ; Clausen, Johan. / Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D. Aalborg : Department of Civil Engineering, Aalborg University, 2013. 14 s. (DCE Technical Memorandum; Nr. 32).
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Knudsen, BS, Østergaard, MU & Clausen, J 2013, Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D. DCE Technical Memorandum, nr. 32, Department of Civil Engineering, Aalborg University, Aalborg.

Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D. / Knudsen, Bjørn S.; Østergaard, Martin Underlin; Clausen, Johan.

Aalborg : Department of Civil Engineering, Aalborg University, 2013. 14 s. (DCE Technical Memorandum; Nr. 32).

Eksport af forskningsdata: Bog/antologi/afhandling/rapportRapportForskning

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Knudsen BS, Østergaard MU, Clausen J. Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D. Aalborg: Department of Civil Engineering, Aalborg University, 2013. 14 s. (DCE Technical Memorandum; Nr. 32).