On improved analytical method for stress-strain relationship for plate elements under axial compressive load

被引：2

作者：

Vhanmane, Suhas ^{[1
]}

Bhattacharya, Baidurya ^{[1
,2
]}

机构：

[1] Research and Coordination Division, Indian Register of Shipping, Powai, Mumbai

[2] Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur

来源：

Ships and Offshore Structures | 2007年 / 2卷 / 04期

关键词：

Average stress-average strain relationship; Compressive load; Elastic large deformation; Rigid plastic collapse mechanism; Ship hull; Ultimate strength;

D O I：

10.1080/17445300701594690

中图分类号：

学科分类号：

摘要：

Accurate prediction of load carrying capacity of the ship hull is very important for its structural safety. The stress-strain relationship of hull structural element plays a vital role in this. A simple analytical method to predict the average stress-average strain relationship for plating between stiffeners in ship structures is proposed, in which two different methods are combined: the membrane stress method by Paik et al. (2000) involving large elastic deformation theory and the rigid plastic collapse mechanism theory by Yao et al. (1991). The former governs the stress-strain relationship up to ultimate strength while the latter is used beyond ultimate strength. A MATLAB code is developed for this purpose. The plating between stiffeners is analysed under axial load for different aspect ratio values. The present results are compared with published FEA results. It is concluded that the present method is quite accurate for deriving the average stress-average strain relationship of ship hull plating.

引用

页码：347 / 353

页数：6