An approximate method for fatigue-life prediction of framed structures

被引：3

作者：

Bolzon, G

机构：

[1] Dipto. di Ingegneria Strutturale, Politecnico di Milano, 20133 Milano

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1996年 / 19卷 / 12期

关键词：

fatigue life; energy release rates; framed structures;

D O I：

10.1111/j.1460-2695.1996.tb00183.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The propagation of fatigue cracks in framed metal structures, usually described by Linear Elastic Fracture Mechanics, is analysed here and described by a numerical method based on classical beam theory. A procedure to be used in practice for the evaluation of stiffness degradation and energy release rate is presented. The procedure uses formulae which are explicitly given for statistically determinate beam structures that are being progressively damaged. If implemented into any beam-oriented finite element code as shown here, the proposed approach allows one to deal also with redundant structures.

引用

页码：1481 / 1491

页数：11

共 19 条

[1] A REVIEW OF FATIGUE CRACK-GROWTH CHARACTERIZATION BY LINEAR ELASTIC FRACTURE-MECHANICS (LEFM) .2. ADVISORY DOCUMENTS AND APPLICATIONS WITHIN NATIONAL STANDARDS [J].