A tri-axial ice model for simulating ice-stiffened panel impact: Experiments and numerical modeling

Yu, Tongqiang; Liu, Kun; Wang, Ge; Liu, Junjie; Wang, Zili

doi:10.1016/j.marstruc.2022.103358

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…PDRF = w pi /w ps (20) where E pi is the plastic-strain energy of the ship plate under ice impact and E ps is the plastic-strain energy of the ship plate under rigid-mass impact. w pi and w ps are the plastic deformation of ice impact and rigid-mass impact, respectively.…”

Section: Comparative Analysis Of Theoretical Results Of Ice Impact An...mentioning

confidence: 99%

“…The failure strain, hydrostatic pressure and equivalent plastic strain of the ice model were studied. Yu et al [20] used ABAQUS software to carry out the finite-element model of the impact of a wedge-shaped ice block and stiffened panels, and also studied the impact force and permanent deformation of stiffened plate. Cai et al [21] proposed an ice-material model similar to soil/concrete.…”

Section: Introductionmentioning

confidence: 99%

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A New Plastic Design Approach for the Vertical-Side-Plating Thickness of Ice-Strengthened Ships Suffering from Ice Floe Impacts

Mu,

Guo,

Cai

et al. 2024

JMSE

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Ice-strengthened ships inevitably suffer from ice floe impacts during navigation in icy regions. Under some extreme-ice-impact loadings, the ship structure will experience plastic deformations. The magnitude of plastic deformation is highly correlated with the ice floe-impact energy level. During most ice impacts, only the ship’s plate undergoes minor plastic deformation. Considering that the structure still has a high structural strength with a minor permanent deformation, developing a structural plastic design method for polar ships has become a hot research issue in current studies. Therefore, in this paper, based on the rigid-plastic theory and the ice-crushing-energy approach, an experimentally verified theoretical model for predicting plastic deformations of the vertical-side plate of polar ship subjected to ice floe impacts was established. According to the analytical solutions of the plastic deformation, the plastic design formula to determine the plating thickness of ice-strengthened ships subjected to ice floe impacts was further derived based on the plastic design criteria. In addition, the parameter analysis of ice strength described by the ice pressure–area relationship, allowable-permanent-set parameter, impact energy and ice shape were conducted, and plating-thickness design curves with different design parameters were given. The design of plating thickness is very sensitive to the determinations of the allowable-permanent set and ice pressure–area curves. The designed plating thickness decreased with the increase of the allowable-permanent set. Moreover, a comparative analysis of the designed plating thickness for ice floe impact and rigid-mass impact was also carried out. Under the same impact conditions, due to energy absorption caused by ice damage, the designed thickness of the plate for rigid-mass impact was much larger than that for the ice impact. It is necessary to consider the impact-induced ice damage and energy dissipation in a structural design, instead of using rigid impact loads for conservative design. The research in this paper can provide some useful references for the structural design of ice-strengthened ships subject to ice floe impacts.

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Section: Comparative Analysis Of Theoretical Results Of Ice Impact An...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Plastic Design Approach for the Vertical-Side-Plating Thickness of Ice-Strengthened Ships Suffering from Ice Floe Impacts

Mu,

Guo,

Cai

et al. 2024

JMSE

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“…Zong [13] used polypropylene wax to simulate floating ice and analyzed the characteristics of sea ice. With advancements in simulation technology, finite element calculations are increasingly being used for predicting and assessing ice loads, which serve as effective means for code-based verification [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Ice Loads on Structures during Quasi-Static Compression Tests

Xia,

Yu,

Liu

et al. 2024

JMSE

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In polar ship hull structural designs, methods based on regulations are considered the most authoritative; however, they tend to be conservative and often exhibit a notable degree of redundancy. This study aims to evaluate the applicability of the empirical formula for ice load assessments by conducting a series of quasi-static indentation tests on scaled hull plates under laboratory-made ice blocks of different scales. The obtained data include ice loads, structural responses, and characteristics of ice pressure distribution. A detailed comparison of various formulas is provided, along with an examination of their differences and errors in comparison to experimental results. The objective of this paper is to offer technical support for ice load forecasting and assessment.

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Prediction of icing interface normal stress response for thin-walled parts machining with ice-based fixturing (IBF)

Wang

Zeng

et al. 2023

Thin-Walled Structures

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A tri-axial ice model for simulating ice-stiffened panel impact: Experiments and numerical modeling

Cited by 3 publications

References 39 publications

A New Plastic Design Approach for the Vertical-Side-Plating Thickness of Ice-Strengthened Ships Suffering from Ice Floe Impacts

A New Plastic Design Approach for the Vertical-Side-Plating Thickness of Ice-Strengthened Ships Suffering from Ice Floe Impacts

Experimental Investigation of Ice Loads on Structures during Quasi-Static Compression Tests

Prediction of icing interface normal stress response for thin-walled parts machining with ice-based fixturing (IBF)

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