Hydraulic Engineering
DOI: http://www.dx.doi.org/10.24866/2227-6858/2020-2-15
Makarov O., Bekker A., Gogoladze D.
OLEG MAKAROV, MS student, Junior Researcher, International Research and Education Center R&D Center Arctic, ORCID: https://orcid.org/0000-0003-3319-4481, e-mail: makarov.oa@dvfu.ru
ALEXANDER BEKKER, Doctor of Engineering Sciences, Professor, Scientific Adviser, School of Engineering, ResercherID: I-6494-2017, ScopusID: 35610298200, ORCID: http://orcid.org/0000-0002-2899-7995, e-mail: bekker.at@dvfu.ru
DENIS GOGOLADZE, MS student, Junior Researcher, International Research and Education Center R&D Center Arctic, ORCID: https://orcid.org/0000-0001-5497-807X, e-mail: gogoladze.dzu@dvfu.ru
School of Engineering
Far Eastern Federal University
Vladivostok, Russia
Analysis of constitutive plasticity models in relation
to numerical modelling of ice impacts
Abstract: In recent years, a large number of numerical experiments have been performed to estimate the magnitude of the impact of ice on offshore structures, with a variety of used material models. However, there are relatively few correct substantiations for using such models. In this regard, the question of reliability of the behavior of the modeled ice undergoing significant deformations remains open. Although in many software systems it is possible to integrate side user-defined models designed to describe the behavior of materials under load, the use of this tool requires the user to apply additional knowledge and skills. In this regard, this paper analyzes the constitutive models of plasticity of the material available in the ANSYS and SIMULIA Abaqus software packages which properly consider various factors that have a significant effect on the strength characteristics of ice. For these models, the analysis of parameters affecting the criterion of the onset of plastic flow is carried out. Conclusions are made on the possibility and advisability of using the considered models for various conditions. A review of numerical studies of the processes of interaction in the ice-structure system performed by various authors, regarding the applied constitutive models, is carried out.
Keywords: constitutive models, ice impacts, ice plasticity, strain rate, review.
See the reference in English at the end of the article