用于抵抗扭转采取边缘弹性约束下的单轴压缩下板材极限强度:一种新的综合方法  

Ultimate Strength of Platings Under Uniaxial Compression with Edges Elastically Restrained Against Torsion: A New Comprehensive Approach

作　　者：V.Piscopo 

机构地区：[1]The University of Naples“Parthenope”,Department of Science and Technology,Centro Direzionale Isola C4,80143 Naples,Italy

出　　处：《哈尔滨工程大学学报（英文版）》2024年第2期443-459,共17页Journal of Marine Science and Application

摘　　要：The ultimate strength of platings under compression is one of the most important factors to be addressed in the ship design.Current Rules for ship structural design generally provide explicit strength check criteria against buckling for simply supported and clamped platings.Nevertheless,ship platings generally exhibit an intermediate behaviour between the simple support and the clamped conditions,which implies that the torsional stiffness of supporting members should be duly considered.Hence,the main aim of this study is the development of new design formulas for the ultimate strength of platings under uniaxial compression,with short and/or long edges elastically restrained against torsion.In this respect,two benchmark studies are performed.The former is devoted to the development of new equations for the elastic buckling coefficients of platings with edges elastically restrained against torsion,based on the results of the eigenvalue buckling analysis,performed by Ansys Mechanical APDL.The latter investigates the ultimate strength of platings with elastically restrained edges,by systematically varying the plate slenderness ratio and the torsional stiffness of supporting members.Finally,the effectiveness of the new formulation is checked against a wide number of finite element(FE)simulations,to cover the entire design space of ship platings.

关 键 词：Platings under compression Edges elastically restrained against torsion Torsional stiffness Supporting members Eigenvalue buckling analysis Nonlinear ultimate strength analysis FE simulations 

分 类 号：U661.43[交通运输工程—船舶及航道工程]