Hydroelastic analysis of ice shelves under long wave excitation
The transient hydroelastic response of an ice shelf under long wave excitation is analysed by means of the finite element method. The simple model, presented in this work, is used for the simulation of the generated kinematic and stress fields in an ice shelf, when the latter interacts with a tsunam...
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ftcopernicus:oai:publications.copernicus.org:nhess29354 2023-05-15T16:41:45+02:00 Hydroelastic analysis of ice shelves under long wave excitation Papathanasiou, T. K. Karperaki, A. E. Theotokoglou, E. E. Belibassakis, K. A. 2018-09-27 application/pdf https://doi.org/10.5194/nhess-15-1851-2015 https://nhess.copernicus.org/articles/15/1851/2015/ eng eng doi:10.5194/nhess-15-1851-2015 https://nhess.copernicus.org/articles/15/1851/2015/ eISSN: 1684-9981 Text 2018 ftcopernicus https://doi.org/10.5194/nhess-15-1851-2015 2020-07-20T16:24:29Z The transient hydroelastic response of an ice shelf under long wave excitation is analysed by means of the finite element method. The simple model, presented in this work, is used for the simulation of the generated kinematic and stress fields in an ice shelf, when the latter interacts with a tsunami wave. The ice shelf, being of large length compared to its thickness, is modelled as an elastic Euler-Bernoulli beam, constrained at the grounding line. The hydrodynamic field is represented by the linearised shallow water equations. The numerical solution is based on the development of a special hydroelastic finite element for the system of governing of equations. Motivated by the 2011 Sulzberger Ice Shelf (SIS) calving event and its correlation with the Honshu Tsunami, the SIS stable configuration is studied. The extreme values of the bending moment distribution in both space and time are examined. Finally, the location of these extrema is investigated for different values of ice shelf thickness and tsunami wave length. Text Ice Shelf Ice Shelves Sulzberger Ice Shelf Copernicus Publications: E-Journals Sulzberger Ice Shelf ENVELOPE(-148.000,-148.000,-77.000,-77.000) Natural Hazards and Earth System Sciences 15 8 1851 1857 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The transient hydroelastic response of an ice shelf under long wave excitation is analysed by means of the finite element method. The simple model, presented in this work, is used for the simulation of the generated kinematic and stress fields in an ice shelf, when the latter interacts with a tsunami wave. The ice shelf, being of large length compared to its thickness, is modelled as an elastic Euler-Bernoulli beam, constrained at the grounding line. The hydrodynamic field is represented by the linearised shallow water equations. The numerical solution is based on the development of a special hydroelastic finite element for the system of governing of equations. Motivated by the 2011 Sulzberger Ice Shelf (SIS) calving event and its correlation with the Honshu Tsunami, the SIS stable configuration is studied. The extreme values of the bending moment distribution in both space and time are examined. Finally, the location of these extrema is investigated for different values of ice shelf thickness and tsunami wave length. |
format |
Text |
author |
Papathanasiou, T. K. Karperaki, A. E. Theotokoglou, E. E. Belibassakis, K. A. |
spellingShingle |
Papathanasiou, T. K. Karperaki, A. E. Theotokoglou, E. E. Belibassakis, K. A. Hydroelastic analysis of ice shelves under long wave excitation |
author_facet |
Papathanasiou, T. K. Karperaki, A. E. Theotokoglou, E. E. Belibassakis, K. A. |
author_sort |
Papathanasiou, T. K. |
title |
Hydroelastic analysis of ice shelves under long wave excitation |
title_short |
Hydroelastic analysis of ice shelves under long wave excitation |
title_full |
Hydroelastic analysis of ice shelves under long wave excitation |
title_fullStr |
Hydroelastic analysis of ice shelves under long wave excitation |
title_full_unstemmed |
Hydroelastic analysis of ice shelves under long wave excitation |
title_sort |
hydroelastic analysis of ice shelves under long wave excitation |
publishDate |
2018 |
url |
https://doi.org/10.5194/nhess-15-1851-2015 https://nhess.copernicus.org/articles/15/1851/2015/ |
long_lat |
ENVELOPE(-148.000,-148.000,-77.000,-77.000) |
geographic |
Sulzberger Ice Shelf |
geographic_facet |
Sulzberger Ice Shelf |
genre |
Ice Shelf Ice Shelves Sulzberger Ice Shelf |
genre_facet |
Ice Shelf Ice Shelves Sulzberger Ice Shelf |
op_source |
eISSN: 1684-9981 |
op_relation |
doi:10.5194/nhess-15-1851-2015 https://nhess.copernicus.org/articles/15/1851/2015/ |
op_doi |
https://doi.org/10.5194/nhess-15-1851-2015 |
container_title |
Natural Hazards and Earth System Sciences |
container_volume |
15 |
container_issue |
8 |
container_start_page |
1851 |
op_container_end_page |
1857 |
_version_ |
1766032211836928000 |