Chinese Journal of Ship Research, Volume. 20, Issue 3, 174(2025)
Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment
Figures & Tables(17)
![[in Chinese]](/Images/icon/loading.gif){kind=icon}
Table 1. Material parameters of Chaboche model[18]
View tableView in ArticleTable 1. Material parameters of Chaboche model[18]
参数 数值 参数 数值 E/MPa 210 000 C2/MPa 4 240 υ 0.3 γ2 52 σY/MPa 315 C3/MPa 1573 C1/MPa 13 921 γ3 14 γ1 765 Q∞/MPa 25.6
Table 2. Grid convergence analysis
View tableView in ArticleTable 2. Grid convergence analysis
网格模型 网格数量 散货船船体梁模型 单元总数 弯矩(本文计算值)/(GN∙m) 提升效果/% 相邻加强筋之间 加强筋腹板 板纵长方向 中拱 中垂 中拱 中垂 A 7 3 35 97 020 19.402 17.015 B 9 5 49 182 182 18.741 16.578 3.41 2.57 C 11 6 63 285 768 18.603 16.504 0.74 0.45
Table 3. Load amplitudes of the upper and lower limits for the elastic shakedown of bulk carrier's hull girder
View tableView in ArticleTable 3. Load amplitudes of the upper and lower limits for the elastic shakedown of bulk carrier's hull girder
散货船船体梁 受载状态 载荷幅值/rad 安定下限 安定上限 不考虑焊接初始缺陷 中拱 2.005×10−4 2.90×10−4 中垂 1.982×10−4 2.90×10−4 仅考虑焊接初始变形 中拱 1.573×10−4 2.80×10−4 中垂 1.652×10−4 2.85×10−4 考虑焊接初始变形 与残余应力 中拱 0.702×10−4 2.70×10−4 中垂 0.773×10−4 2.85×10−4
Table 4. The ultimate strength of upper and lower limits of elastic shakedown of bulk carrier's hull girder
View tableView in ArticleTable 4. The ultimate strength of upper and lower limits of elastic shakedown of bulk carrier's hull girder
散货船船体梁 受载状态 极限强度/(GN∙m) M1 M2 MU 不考虑焊接初始缺陷 中拱 11.781 16.789 19.340 中垂 11.568 16.836 17.074 仅考虑焊接初始变形 中拱 8.726 15.259 18.952 中垂 9.246 15.359 15.938 考虑初始变形与残余应力 中拱 3.837 14.428 18.747 中垂 4.374 15.194 14.864
Tools
Get Citation
Copy Citation Text
Huwei CUI, Runwen HU, Zemin CHEN, Lu HUANG. Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment[J]. Chinese Journal of Ship Research, 2025, 20(3): 174
Paper Information
Category: Ship Structure and Fittings
Received: Oct. 16, 2023
Accepted: --
Published Online: Jul. 15, 2025
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20