Prediction of fatigue life by crack growth analysis

Prediction of fatigue life by crack growth analysis This work proposes an improved mechanical driving force parameter for crack growth analysis. The proposed parameter investigates fatigue crack growth FCG under constant amplitude loading, considering the influence of residual stress distribution near the crack tip. A 2D FE Analysis is developed in order to compute the stress distribution in the vicinity of the crack tip with in the framework of elastic-plastic fracture mechanics (EPFM). Elastic stress intensity factors are computed using both analytical solution and the extended finite element method (XFEM). Residual stress intensity factors are determined using the weight function through numerical analysis. The authors estimate the residual fatigue crack growth life of 7075-T6 Aluminum alloy attachment lugs with single through-thickness crack under various loading conditions. Moreover, a comparison with the available experimental data is performed. It is proved that this improved mechanical parameter so-called residual-corrected stress intensity factor can better predict fatigue life with a greater accuracy compared with experimental results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Prediction of fatigue life by crack growth analysis

Loading next page...
 
/lp/springer_journal/prediction-of-fatigue-life-by-crack-growth-analysis-02bpxfqs4f
Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-0069-8
Publisher site
See Article on Publisher Site

Abstract

This work proposes an improved mechanical driving force parameter for crack growth analysis. The proposed parameter investigates fatigue crack growth FCG under constant amplitude loading, considering the influence of residual stress distribution near the crack tip. A 2D FE Analysis is developed in order to compute the stress distribution in the vicinity of the crack tip with in the framework of elastic-plastic fracture mechanics (EPFM). Elastic stress intensity factors are computed using both analytical solution and the extended finite element method (XFEM). Residual stress intensity factors are determined using the weight function through numerical analysis. The authors estimate the residual fatigue crack growth life of 7075-T6 Aluminum alloy attachment lugs with single through-thickness crack under various loading conditions. Moreover, a comparison with the available experimental data is performed. It is proved that this improved mechanical parameter so-called residual-corrected stress intensity factor can better predict fatigue life with a greater accuracy compared with experimental results.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Feb 3, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off