Mechanical properties and damage evolution of three-dimensional random porous sea ice based on meso-scale analysis

IF 3.8 2区工程技术 Q1 ENGINEERING, CIVIL

Cold Regions Science and Technology Pub Date : 2025-08-12 DOI:10.1016/j.coldregions.2025.104640

Aobo Zhang , Biye Yang , Guiyong Zhang , Peng Lu , Borui Yang , Xi Yang

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引用次数: 0

Abstract

The microstructural characteristics of sea ice influence its macroscopic fracture behavior. Elucidating the inter-scale mechanical mechanisms remains a pivotal challenge. In this paper, a three-dimensional mesoscale numerical model is proposed to model the sea ice based on the Monte Carlo method, addressing the limitations of existing models in reconstructing sea ice morphology and capturing failure details. The microstructure of sea ice is incorporated, considering the randomly distributed spherical and cylindrical pores representing air bubbles and brine inclusions. Using porous sea ice numerical model with verified material parameters and mesh sizes, the tensile and compressive strengths of sea ice is calculated, which agree well with experimental data. Furthermore, the fracture behaviors of sea ice following tensile and compressive failures are consistent with experimental observations, demonstrating the validity and feasibility of the proposed model. A detailed analysis is conducted on the factors influencing the mechanical properties and damage evolution of sea ice, including the random distribution of pores and porosity. These investigations help clarify the relationship between the mesoscopic structure and macroscopic behavior of sea ice, as well as elucidate its brittle failure mechanisms. The findings also facilitate the prediction of the failure strength and elastic parameters at different porosities.

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基于细观尺度分析的三维随机多孔海冰力学特性与损伤演化

海冰的微观结构特征影响其宏观断裂行为。阐明尺度间的力学机制仍然是一个关键的挑战。本文提出了一种基于蒙特卡罗方法的三维中尺度海冰数值模型，解决了现有模型在重建海冰形态和捕获海冰破坏细节方面的局限性。结合海冰的微观结构，考虑随机分布的球形和圆柱形孔隙，代表气泡和盐水包裹体。利用经验证的材料参数和网格尺寸的多孔海冰数值模型，计算了海冰的抗拉和抗压强度，结果与实验数据吻合较好。此外，海冰在拉伸和压缩破坏后的断裂行为与实验观察结果一致，证明了该模型的有效性和可行性。详细分析了影响海冰力学性能和损伤演化的因素，包括孔隙和孔隙度的随机分布。这些研究有助于阐明海冰的细观结构与宏观行为之间的关系，并阐明其脆性破坏机制。研究结果还有助于预测不同孔隙率下的破坏强度和弹性参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cold Regions Science and Technology 工程技术-地球科学综合

CiteScore

7.40

自引率

12.20%

发文量

209

审稿时长

4.9 months

期刊介绍： Cold Regions Science and Technology is an international journal dealing with the science and technical problems of cold environments in both the polar regions and more temperate locations. It includes fundamental aspects of cryospheric sciences which have applications for cold regions problems as well as engineering topics which relate to the cryosphere. Emphasis is given to applied science with broad coverage of the physical and mechanical aspects of ice (including glaciers and sea ice), snow and snow avalanches, ice-water systems, ice-bonded soils and permafrost. Relevant aspects of Earth science, materials science, offshore and river ice engineering are also of primary interest. These include icing of ships and structures as well as trafficability in cold environments. Technological advances for cold regions in research, development, and engineering practice are relevant to the journal. Theoretical papers must include a detailed discussion of the potential application of the theory to address cold regions problems. The journal serves a wide range of specialists, providing a medium for interdisciplinary communication and a convenient source of reference.