Longitudinal strength analysis of ship hulls of composite materials under sagging moments

被引：21

作者：

Chen, Nian-Zhong ^{[1
]}

Soares, C. Guedes ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Tecn, Unit Marine Technol & Engn, P-1049001 Lisbon, Portugal

来源：

COMPOSITE STRUCTURES | 2007年 / 77卷 / 01期

关键词：

stiffened composite panels; ship hull in composite materials; buckling; material failure; ultimate collapse; nonlinear finite element analysis;

D O I：

10.1016/j.compstruct.2005.06.002

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An approach to estimate the longitudinal strength of ship hulls in composite materials is presented in the paper. Typical ship configurations have as dominant failure mode the failure of the deck under compression associated with sagging moments. Ship hulls are modeled as assemblies of stiffened composite panels. Buckling, material failure and ultimate collapse of the stiffened panels are predicted by nonlinear finite element analysis, which is based on a degenerated three-dimensional laminated composite shell element with updated Lagrangian formulation and first-order shear deformable kinematics. According to buckling, material failure and ultimate collapse of stiffened panels, the corresponding longitudinal strengths of ship hull are derived from a simplified method. A ship hull under sagging is analysed as an example application. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：36 / 44

页数：9