Chinese Journal of Ship Research, Volume. 18, Issue 3, 186(2023)
Plastic accumulation and fracture characteristics of hull plates with circular holes under cyclic loading
Figures & Tables(21)
Fig. 7. Plastic accumulation of plates with a circular hole with different slenderness ratios when the amplitude of loading is 1.0 (
Fig. 8. Plastic accumulation of plates with a circular hole with different slenderness ratios when the amplitude of loading is 1.5 (
Fig. 9. Plastic accumulation of plates with a circular hole with different diameter-width ratios when the amplitude of loading is 1.0 (
Fig. 10. Plastic accumulation of plates with a circular hole with different diameter-width ratios when the amplitude of loading is 1.5 (
Fig. 12. Average stress-strain curves of plates with a circular hole with different slenderness ratios when the amplitude of loading is 1.0 (
Fig. 13. Average stress-strain curves of plates with a circular hole with different slenderness ratios when the amplitude of loading is 1.5 (
Fig. 14. Average stress-strain curves of plates with a circular hole with different diameter-width ratios when the amplitude of loading is 1.0 (
Fig. 15. Average stress-strain curves of plates with a circular hole with different diameter-width ratios when the amplitude of loading is 1.5 (
Table 1. Material parameters of plates with a circular hole
View tableView in ArticleTable 1. Material parameters of plates with a circular hole
变量 数值 E/MPa 207 000 ${ \nu}$ 0.3 ${\sigma _{\text{Y}}}$ /MPa285 ${C_1}$ /MPa13 921 ${\gamma _1}$ 765 ${C_2}$ /MPa4 240 ${\gamma _2}$ 52 ${C_3}$ /MPa1 573 ${\gamma _3}$ 14 ${Q_\infty }$ /MPa25.6 B 4.4
Table 2. Loading mode and calculation example
View tableView in ArticleTable 2. Loading mode and calculation example
模型编号 初始挠度 形状 β d/b 载荷幅值 ${\varepsilon _{\rm{Y} } } = 0.004\; 13$ 载荷循环模式 case 11-1 A/B 1.06 0.2 1.0 循环压缩−拉伸（双向等幅） case 12-1 A/B 1.06 0.5 1.0 case 13-1 A/B 1.06 0.8 1.0 case 21-1 A/B 1.44 0.2 1.0 case 22-1 A/B 1.44 0.5 1.0 case 23-1 A/B 1.44 0.8 1.0 case 31-1 A/B 2.13 0.2 1.0 case 32-1 A/B 2.13 0.5 1.0 case 33-1 A/B 2.13 0.8 1.0 case 41-1 A/B 2.67 0.2 1.0 case 42-1 A/B 2.67 0.5 1.0 case 43-1 A/B 2.67 0.8 1.0 case 51-1 A/B 3.57 0.2 1.0 case 52-1 A/B 3.57 0.5 1.0 case 53-1 A/B 3.57 0.8 1.0 case 11-2 A/B 1.06 0.2 1.5 case 12-2 A/B 1.06 0.5 1.5 case 13-2 A/B 1.06 0.8 1.5 case 21-2 A/B 1.44 0.2 1.5 case 22-2 A/B 1.44 0.5 1.5 case 23-2 A/B 1.44 0.8 1.5 case 31-2 A/B 2.13 0.2 1.5 case 32-2 A/B 2.13 0.5 1.5 case 33-2 A/B 2.13 0.8 1.5 case 41-2 A/B 2.67 0.2 1.5 case 42-2 A/B 2.67 0.5 1.5 case 43-2 A/B 2.67 0.8 1.5 case 51-2 A/B 3.57 0.2 1.5 case 52-2 A/B 3.57 0.5 1.5 case 53-2 A/B 3.57 0.8 1.5
Table 3. Comparison of results between finite element calculation and Faulkner's formula[28]
View tableView in ArticleTable 3. Comparison of results between finite element calculation and Faulkner's formula[28]
模型 板厚/mm $b/t$ $\beta $ 极限强度 ${\sigma _{\rm u}}$ 误差/% 本文 Faulkner公式 [ 28 ]P1-A 29.8 28.5 1.06 0.984 0.997 −1.33 P1-B 29.8 28.5 1.06 0.984 −1.28 P2-A 21.8 39.0 1.44 0.875 0.907 −3.92 P2-B 21.8 39.0 1.44 0.879 −3.05 P3-A 14.8 57.4 2.13 0.687 0.719 −4.45 P3-B 14.8 57.4 2.13 0.688 −4.38 P4-A 11.8 72.0 2.67 0.603 0.609 −1.14 P4-B 11.8 72.0 2.67 0.606 −0.28 P5-A 8.8 96.6 3.57 0.501 0.482 3.94 P5-B 8.8 96.6 3.57 0.505 4.78
Table 4. Fracturing cycles of plates with a circular holes
View tableView in ArticleTable 4. Fracturing cycles of plates with a circular holes
圆孔 板 $\beta $ 初始 挠度 形状 圆孔板循环致断次数 1.0 ${\varepsilon _{\rm{Y}}}$ 1.5 ${\varepsilon _{\rm{Y}}}$ $d/b = 0.2$ $d/b = 0.5$ $d/b = 0.8$ $d/b = 0.2$ $d/b = 0.5$ $d/b = 0.8$ 1.06 A 22 24 8 23 15 5 B 21 24 8 24 14 5 1.44 A 175 50 8 11 11 5 B 133 41 8 16 12 5 2.13 A 108 29 8 11 8 5 B 63 25 8 11 8 5 2.67 A 116 21 10 9 7 5 B 49 19 9 9 7 5 3.57 A 248 16 9 7 5 5 B 37 14 8 7 5 5
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Huwei CUI, Song HU, Benguo GAO. Plastic accumulation and fracture characteristics of hull plates with circular holes under cyclic loading[J]. Chinese Journal of Ship Research, 2023, 18(3): 186
Paper Information
Category: Ship Structure and Fittings
Received: Jan. 12, 2022
Accepted: --
Published Online: Mar. 20, 2025
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