Scaling criterion of ultimate strength similarity of axial compression stiffened plate based on finite similarity method

被引：0

作者：

Kong, Xiang-Shao ^{[1
]}

Xu, Chong-Xi ^{[2
]}

Wang, Zhuo ^{[2
]}

Zhou, Hu ^{[2
]}

Zheng, Cheng ^{[1
]}

Wu, Wei-Guo ^{[1
]}

机构：

[1] Green & Smart River-Sea-Going Ship, Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan

[2] School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan

来源：

Chuan Bo Li Xue/Journal of Ship Mechanics | 2024年 / 28卷 / 08期

关键词：

axial compression; experimental design model; finite similarity method; transport equation; ultimate load;

D O I：

10.3969/j.issn.1007-7294.2024.08.010

中图分类号：

学科分类号：

摘要：

The directional dimensional analysis method is commonly used in the design of similar scale-down models of hull structures. However, the traditional dimensional analysis method based on elastic theory cannot reflect the nonlinear response process of a structure, which limits its application in the scale down model test of hull structures. In this paper, based on the finite similarity method, the scale-down factors of the geometric dimension, material density and time of a structure were obtained by matching the transport equations in the physical space and the trial space. The nonlinear similarity relationship between the scaled down model of the stiffened plate structure and the prototype was derived, and the influence of the material parameters on the nonlinear similarity process was analyzed. By calculating the ultimate strength of the stiffened plates subjected to plain compression, the effectiveness of the scaling criterion based on the finite similarity method was verified. The result shows that the present method can well reflect the nonlinear characteristics of materials, and achieve a good prediction on the ultimate strength of the original model through the results of the scale down model. © 2024 China Ship Scientific Research Center. All rights reserved.

引用

页码：1230 / 1243

页数：13

共 23 条

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