### Resumé

Originalsprog | Engelsk |
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Udgivelsessted | Aalborg |
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Forlag/udgivende institution | Department of Civil Engineering, Aalborg University |

Antal sider | 14 |

Publikationsstatus | Udgivet - 2013 |

Publikations serier | DCE Technical Memorandum |
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Kommatal | 32 |

ISSN | 1901-7278 |

### Fingerprint

### Emneord

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

### Citer dette

*Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D*. Aalborg: Department of Civil Engineering, Aalborg University. DCE Technical Memorandum, Nr. 32

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*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.

Eksport af forskningsdata: Bog/antologi/afhandling/rapport › Rapport › Forskning

TY - RPRT

T1 - Implementation of a Stress-dependent Strength Material Model in PLAXIS 3D

AU - Knudsen, Bjørn S.

AU - Østergaard, Martin Underlin

AU - Clausen, Johan

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Bucket foundations

KW - Pressure tank

KW - Small-scale tests

KW - Tests

KW - PLAXIS 3D

KW - FORTRAN

KW - Bucket foundations

KW - Pressure tank

KW - Small-scale tests

KW - Tests

KW - PLAXIS 3D

KW - FORTRAN

M3 - Report

T3 - DCE Technical Memorandum

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

PB - Department of Civil Engineering, Aalborg University

CY - Aalborg

ER -