Experiments and model predictions for fatigue crack propagation in riveted lap-joints with multiple site damage

被引：15

作者：

Galatolo, R. ^{[1
]}

Lazzeri, R. ^{[1
]}

机构：

[1] Univ Pisa, Dept Civil & Ind Engn, Via Caruso, I-56122 Pisa, Italy

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2016年 / 39卷 / 03期

关键词：

crack interaction; fatigue crack growth; image processing; numerical modelling; riveted joints; 2024-T3 aluminium alloy; PROBABILISTIC APPROACH; INTERACTING CRACKS; AIRCRAFT; GROWTH;

D O I：

10.1111/ffe.12354

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, the growth of long fatigue cracks up to failure in aircraft components is studied. A deterministic model is presented, able to simulate the growth of fatigue through cracks located at rivet holes in lap-joint panels. It also includes criteria to assess the link-up of collinear adjacent cracks in a MSD scenario. To validate the model, a fatigue test campaign was carried out on riveted lap-joint specimens in order to produce experimental crack growth and link-up data. Accurate measurements of naturally occurred surface cracks were automatically performed by the Image Analysis technique, thus allowing the tests to run 24h a day. The comparison between experimental tests and numerical simulations is good, thus confirming the model as a useful tool for the assessment of fatigue life of aircraft riveted joints.

引用

页码：307 / 319

页数：13

共 37 条

[1]

Berens A.P., 2005, 23 S INT COMM AER FA, P125

[2]

Broek D., 1988, PRACTICAL USE FRACTU

[3] A probabilistic approach to fatigue risk assessment in aerospace components [J].