A YIELD SURFACE EQUATION FOR DOUBLY SYMMETRICAL SECTIONS

被引：54

作者：

DUAN, L

CHEN, WF

机构：

[1] School of Civil Engineering, Purdue University, West Lafayette

来源：

ENGINEERING STRUCTURES | 1990年 / 12卷 / 02期

关键词：

biaxial bending; computer; engineering mechanics; plastic analysis; steel; strength; structural engineering; yield surface;

D O I：

10.1016/0141-0296(90)90016-L

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A four-parameter yield surface equation for the yield strength of doubly symmetrical steel sections (wide-flange, thin-walled circular tube, thin-walled box, rectangular and solid circular sections) under axial force combined with biaxial bending is presented. The proposed yield surface equation represents a smooth and convex surface in the three-dimensional stress-resultant space. Extensive comparisons have been made with the results of exact yield surfaces, providing the confirmation of the validity of the proposed equation. The proposed equation meets all special conditions and is easy to implement in a computer-based structural analysis. It is a useful limiting surface equation for most doubly symmetrical sections, and is therefore recommended for general use. © 1990.

引用

页码：114 / 119

页数：6