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Two-parameter peridynamic simulation of failure in ice plate with initial defects
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Shuang LI1, 2, 4, Hai-ning LÜ1, 2, Xiao-hua HUANG3, Jian-min YANG1, 2
Journal of Ship Mechanics | 2026, 30(1) : 78 - 88
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Journal of Ship Mechanics | 2026, 30(1): 78-88
• Structural Mechanics •
Two-parameter peridynamic simulation of failure in ice plate with initial defects
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Shuang LI1, 2, 4, Hai-ning LÜ1, 2, Xiao-hua HUANG3, Jian-min YANG1, 2
Affiliations
  • 1.Hainan Research Institute, Shanghai Jiao Tong University, Sanya 572000, China
  • 2.State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 3.Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
  • 4.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
Published: 2026-01-15 doi: 10.3969/j.issn.1007-7294.2026.01.009
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Initial defects such as cracks or bubbles will inevitably occur during sea ice condensation, which affect the mechanical properties of ice. To study the crack propagation and fracture characteristics of ice plate with initial defects, based on the peridynamic (PD) theory, the tangential stiffness coefficient for bond is introduced, a two-parameter PD method is proposed, and the two-parameter PD elastic-brittle model of ice material is established. The new model overcomes the limitation of fixing Poisson's ratio and inherits simplicity and stability of the traditional bond-based PD method. The model is verified by simulating the continuous deformation of thin plate and the three-point bending test of sea ice. Furthermore, effects of Poisson’s ratio, initial crack defects, bubble defects, ice grain size, defect shapes and multi-bubble defects on the mechanical properties of sea ice are investigated. The results indicate that the two-parameter PD elastic-brittle model is feasible to predict the continuous to discontinuous failure of sea ice, and the initial defects greatly affect the initiation time and failure mode of the ice structure.

peridynamics  /  ice  /  initial defect  /  crack propagation  /  brittle failure
Shuang LI, Hai-ning LÜ, Xiao-hua HUANG, Jian-min YANG. Two-parameter peridynamic simulation of failure in ice plate with initial defects[J]. Journal of Ship Mechanics, 2026 , 30 (1) : 78 -88 . DOI: 10.3969/j.issn.1007-7294.2026.01.009
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doi: 10.3969/j.issn.1007-7294.2026.01.009
  • Receive Date：2025-02-27
  • Online Date：2026-07-07
  • Published：2026-01-15
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  • Received：2025-02-27
Affiliations
    1.Hainan Research Institute, Shanghai Jiao Tong University, Sanya 572000, China
    2.State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    3.Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
    4.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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