An enhanced interface model for friction fatigue problems of axially loaded piles
peer reviewed The shaft bearing capacity often plays a dominant role for the overall structural behaviour of axially loaded piles in offshore deep foundations. Under cyclic loading, a narrow zone of soil at the pile-soil interface is subject to cyclic shearing solicitations. Thereby, the soil may de...
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ftunivluxembourg:oai:orbilu.uni.lu:10993/39627 2024-04-21T07:53:27+00:00 An enhanced interface model for friction fatigue problems of axially loaded piles Kullolli, Borana Baeßler, Matthias Cuéllar, Pablo Rica, Shilton Rackwitz, Frank 2019-06-09 https://orbilu.uni.lu/handle/10993/39627 en eng https://orbilu.uni.lu/handle/10993/39627 info:hdl:10993/39627 scopus-id:2-s2.0-85075826702 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Proceedings of the ASME 2019 38th, International Conference on Ocean, Offshore and Arctic Engineering, Glasgow 9-14 June 2019 (2019-06-09); Proceedings of the ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering OMAE2019, Glasgow, United Kingdom [GB], 9-06-2019 to 14-06-2019 soil-structure interaction cyclic axially loaded pile friction fatigue interface model Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile conference paper http://purl.org/coar/resource_type/c_5794 info:eu-repo/semantics/conferenceObject peer reviewed 2019 ftunivluxembourg 2024-03-27T14:13:13Z peer reviewed The shaft bearing capacity often plays a dominant role for the overall structural behaviour of axially loaded piles in offshore deep foundations. Under cyclic loading, a narrow zone of soil at the pile-soil interface is subject to cyclic shearing solicitations. Thereby, the soil may densify and lead to a decrease of confining stress around the pile due to micro-phenomena such as particle crushing, migration and rearrangement. This reduction of radial stress has a direct impact on the shaft capacity, potentially leading in extreme cases to pile failure. An adequate interface model is needed in order to model this behaviour numerically. Different authors have proposed models that take typical interface phenomena in account such as densification, grain breakage, normal pressure effect and roughness. However, as the models become more complex, a great number of material parameters need to be defined and calibrated. This paper proposes the adoption and transformation of an existing soil bulk model (Pastor- Zienkiewicz) into an interface model. To calibrate the new interface model, the results of an experimental campaign with the ring shear device under cyclic loading conditions are here presented. The constitutive model shows a good capability to reproduce typical features of sand behaviour such as cyclic compaction and dilatancy, which in saturated partially-drained conditions may lead to liquefaction and cyclic mobility phenomena. Conference Object Arctic University of Luxembourg: ORBilu - Open Repository and Bibliography |
institution |
Open Polar |
collection |
University of Luxembourg: ORBilu - Open Repository and Bibliography |
op_collection_id |
ftunivluxembourg |
language |
English |
topic |
soil-structure interaction cyclic axially loaded pile friction fatigue interface model Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile |
spellingShingle |
soil-structure interaction cyclic axially loaded pile friction fatigue interface model Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile Kullolli, Borana Baeßler, Matthias Cuéllar, Pablo Rica, Shilton Rackwitz, Frank An enhanced interface model for friction fatigue problems of axially loaded piles |
topic_facet |
soil-structure interaction cyclic axially loaded pile friction fatigue interface model Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile |
description |
peer reviewed The shaft bearing capacity often plays a dominant role for the overall structural behaviour of axially loaded piles in offshore deep foundations. Under cyclic loading, a narrow zone of soil at the pile-soil interface is subject to cyclic shearing solicitations. Thereby, the soil may densify and lead to a decrease of confining stress around the pile due to micro-phenomena such as particle crushing, migration and rearrangement. This reduction of radial stress has a direct impact on the shaft capacity, potentially leading in extreme cases to pile failure. An adequate interface model is needed in order to model this behaviour numerically. Different authors have proposed models that take typical interface phenomena in account such as densification, grain breakage, normal pressure effect and roughness. However, as the models become more complex, a great number of material parameters need to be defined and calibrated. This paper proposes the adoption and transformation of an existing soil bulk model (Pastor- Zienkiewicz) into an interface model. To calibrate the new interface model, the results of an experimental campaign with the ring shear device under cyclic loading conditions are here presented. The constitutive model shows a good capability to reproduce typical features of sand behaviour such as cyclic compaction and dilatancy, which in saturated partially-drained conditions may lead to liquefaction and cyclic mobility phenomena. |
format |
Conference Object |
author |
Kullolli, Borana Baeßler, Matthias Cuéllar, Pablo Rica, Shilton Rackwitz, Frank |
author_facet |
Kullolli, Borana Baeßler, Matthias Cuéllar, Pablo Rica, Shilton Rackwitz, Frank |
author_sort |
Kullolli, Borana |
title |
An enhanced interface model for friction fatigue problems of axially loaded piles |
title_short |
An enhanced interface model for friction fatigue problems of axially loaded piles |
title_full |
An enhanced interface model for friction fatigue problems of axially loaded piles |
title_fullStr |
An enhanced interface model for friction fatigue problems of axially loaded piles |
title_full_unstemmed |
An enhanced interface model for friction fatigue problems of axially loaded piles |
title_sort |
enhanced interface model for friction fatigue problems of axially loaded piles |
publishDate |
2019 |
url |
https://orbilu.uni.lu/handle/10993/39627 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Proceedings of the ASME 2019 38th, International Conference on Ocean, Offshore and Arctic Engineering, Glasgow 9-14 June 2019 (2019-06-09); Proceedings of the ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering OMAE2019, Glasgow, United Kingdom [GB], 9-06-2019 to 14-06-2019 |
op_relation |
https://orbilu.uni.lu/handle/10993/39627 info:hdl:10993/39627 scopus-id:2-s2.0-85075826702 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
_version_ |
1796936594151702528 |