On the scalability of model-scale ice experiments

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Standard

On the scalability of model-scale ice experiments. / Von Bock und Polach, Rüdiger U Franz; Ehlers, Sören.

Polar and Arctic Science and Technology. Vuosikerta 10 The American Society of Mechanical Engineers (ASME), 2014.

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Harvard

Von Bock und Polach, RUF & Ehlers, S 2014, On the scalability of model-scale ice experiments. julkaisussa Polar and Arctic Science and Technology. Vuosikerta. 10, The American Society of Mechanical Engineers (ASME), International Conference on Ocean, Offshore and Arctic Engineering
, San Francisco, Yhdysvallat, 08/06/2014. https://doi.org/10.1115/OMAE2014-23183

APA

Von Bock und Polach, R. U. F., & Ehlers, S. (2014). On the scalability of model-scale ice experiments. teoksessa Polar and Arctic Science and Technology (Vuosikerta 10). The American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2014-23183

Vancouver

Von Bock und Polach RUF, Ehlers S. On the scalability of model-scale ice experiments. julkaisussa Polar and Arctic Science and Technology. Vuosikerta 10. The American Society of Mechanical Engineers (ASME). 2014 https://doi.org/10.1115/OMAE2014-23183

Author

Von Bock und Polach, Rüdiger U Franz ; Ehlers, Sören. / On the scalability of model-scale ice experiments. Polar and Arctic Science and Technology. Vuosikerta 10 The American Society of Mechanical Engineers (ASME), 2014.

Bibtex - Lataa

@inproceedings{aad167835b68478cb31d357b2418697c,
title = "On the scalability of model-scale ice experiments",
abstract = "Ice model-scale tests are a frequently used mean to assess and predict the performance of ships and structures in ice. However, ice model-scale tests may not be treated as a blackbox where any full-scale scenario can be tested and a Froude-scalable result is obtained. Prior to scaling a thorough analysis of the physical processes is required and whether they can be transferred to full-scale. Model-scale ice is an empirically developed compound-material, consisting of frozen water, voids of air and other artificial dopants. The model ice manufacturing process and dopant amounts have been adjusted to achieve Froude-scalability for the ice thickness and certain force response levels, i.e. ice resistance tests of ships breaking ice in the bending mode. However, not much is known about the internal mechanical processes of model-scale ice and how the scaled force levels are reached. This may add uncertainty to ice model tests and their application on new fields. Recent research indicated that the internal mechanics of model-scale ice and natural sea ice are different, which is also challenging some of the existing scaling approaches. Mechanical specimen tests in full-scale and model-scale are usually compared by stresses, i.e. relating the failure load to the cross-sectional properties. However, depending on the tests different stress combinations might lead to failure, such as different geometries and dimensions may cause qualitatively different stress distribution, which ultimately limits the comparability of the tests. Subsequently, this paper presents a qualitative assessment on selected topics to assess the differences of model-scale ice and natural ice and the influence of the specimen geometry. Furthermore, existing scaling approaches are discussed in context with recent research findings.",
author = "{Von Bock und Polach}, {R{\"u}diger U Franz} and S{\"o}ren Ehlers",
year = "2014",
doi = "10.1115/OMAE2014-23183",
language = "English",
volume = "10",
booktitle = "Polar and Arctic Science and Technology",
publisher = "The American Society of Mechanical Engineers (ASME)",

}

RIS - Lataa

TY - GEN

T1 - On the scalability of model-scale ice experiments

AU - Von Bock und Polach, Rüdiger U Franz

AU - Ehlers, Sören

PY - 2014

Y1 - 2014

N2 - Ice model-scale tests are a frequently used mean to assess and predict the performance of ships and structures in ice. However, ice model-scale tests may not be treated as a blackbox where any full-scale scenario can be tested and a Froude-scalable result is obtained. Prior to scaling a thorough analysis of the physical processes is required and whether they can be transferred to full-scale. Model-scale ice is an empirically developed compound-material, consisting of frozen water, voids of air and other artificial dopants. The model ice manufacturing process and dopant amounts have been adjusted to achieve Froude-scalability for the ice thickness and certain force response levels, i.e. ice resistance tests of ships breaking ice in the bending mode. However, not much is known about the internal mechanical processes of model-scale ice and how the scaled force levels are reached. This may add uncertainty to ice model tests and their application on new fields. Recent research indicated that the internal mechanics of model-scale ice and natural sea ice are different, which is also challenging some of the existing scaling approaches. Mechanical specimen tests in full-scale and model-scale are usually compared by stresses, i.e. relating the failure load to the cross-sectional properties. However, depending on the tests different stress combinations might lead to failure, such as different geometries and dimensions may cause qualitatively different stress distribution, which ultimately limits the comparability of the tests. Subsequently, this paper presents a qualitative assessment on selected topics to assess the differences of model-scale ice and natural ice and the influence of the specimen geometry. Furthermore, existing scaling approaches are discussed in context with recent research findings.

AB - Ice model-scale tests are a frequently used mean to assess and predict the performance of ships and structures in ice. However, ice model-scale tests may not be treated as a blackbox where any full-scale scenario can be tested and a Froude-scalable result is obtained. Prior to scaling a thorough analysis of the physical processes is required and whether they can be transferred to full-scale. Model-scale ice is an empirically developed compound-material, consisting of frozen water, voids of air and other artificial dopants. The model ice manufacturing process and dopant amounts have been adjusted to achieve Froude-scalability for the ice thickness and certain force response levels, i.e. ice resistance tests of ships breaking ice in the bending mode. However, not much is known about the internal mechanical processes of model-scale ice and how the scaled force levels are reached. This may add uncertainty to ice model tests and their application on new fields. Recent research indicated that the internal mechanics of model-scale ice and natural sea ice are different, which is also challenging some of the existing scaling approaches. Mechanical specimen tests in full-scale and model-scale are usually compared by stresses, i.e. relating the failure load to the cross-sectional properties. However, depending on the tests different stress combinations might lead to failure, such as different geometries and dimensions may cause qualitatively different stress distribution, which ultimately limits the comparability of the tests. Subsequently, this paper presents a qualitative assessment on selected topics to assess the differences of model-scale ice and natural ice and the influence of the specimen geometry. Furthermore, existing scaling approaches are discussed in context with recent research findings.

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U2 - 10.1115/OMAE2014-23183

DO - 10.1115/OMAE2014-23183

M3 - Conference contribution

AN - SCOPUS:84911447493

VL - 10

BT - Polar and Arctic Science and Technology

PB - The American Society of Mechanical Engineers (ASME)

ER -

ID: 9846360