In-plane and out-of plane failure of an ice sheet using peridynamics

Vazic, Bozo and Oterkus, Erkan and Oterkus, Selda (2020) In-plane and out-of plane failure of an ice sheet using peridynamics. Journal of Mechanics, 26 (2). pp. 265-271. ISSN 1727-7191 (https://doi.org/10.1017/jmech.2019.65)

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Abstract

When dealing with ice structure interaction modeling, such as designs for offshore structures/icebreakers or predicting ice cover's bearing capacity for transportation, it is essential to determine the most important failure modes of ice. Structural properties, ice material properties, ice-structure interaction processes, and ice sheet geometries have significant effect on failure modes. In this paper two most frequently observed failure modes are studied; splitting failure mode for in-plane failure of finite ice sheet and out-of-plane failure of semi-infinite ice sheet. Peridynamic theory was used to determine the load necessary for in-plane failure of a finite ice sheet. Moreover, the relationship between radial crack initiation load and measured out-of-plane failure load for a semi-infinite ice sheet is established. To achieve this, two peridynamic models are developed. First model is a 2 dimensional bond based peridynamic model of a plate with initial crack used for the in-plane case. Second model is based on a Mindlin plate resting on a Winkler elastic foundation formulation for out-of-plane case. Numerical results obtained using peridynamics are compared against experimental results and a good agreement between the two approaches is obtained confirming capability of peridynamics for predicting in-plane and out-of-plane failure of ice sheets.

ORCID iDs

Vazic, Bozo ORCID logoORCID: https://orcid.org/0000-0003-0977-0434, Oterkus, Erkan ORCID logoORCID: https://orcid.org/0000-0002-4614-7214 and Oterkus, Selda ORCID logoORCID: https://orcid.org/0000-0003-0474-0279;
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