Description of Fatigue Characteristics for Welded Joints in FITNET Procedures – Selected Issues

Article Preview

Abstract:

Discontinuity of geometrical and material properties of welded joints makes it difficult to describe unequivocally the fatigue properties of these joints. The effect of the above mentioned difficulties is that in FITNET procedures, in 1a path of a fatigue module, these properties are described by means of a fatigue diagrams in the form of fatigue curves S-N (Wöhler curves), based on a characteristic parameter - class FAD, and slope factor m = const. FITNET procedures contain a table of elementary nodes (welded joints), which are matched by particular diagrams of appropriate FAD classes.A problem occurs when in a set of elements there is no element with properties similar to the element which is being calculated.

You might also be interested in these eBooks

Info:

Periodical:

Solid State Phenomena (Volume 250)

Pages:

217-222

Citation:

Online since:

April 2016

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2016 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Kocańda S., Szala J., Backgrounds of fatigue calculations (in Polish), 3rd Edition, Polish Scientific Publishing House (Wydawnictwa Naukowe PWN ), Warsaw, (1997).

Google Scholar

[2] Ligaj B., Influence of selected load programs generated from correlation table, on fatigue life of 18G2A steel (in Polish), Maintenance Problems, JTE-PIB, 3/2007, Radom, (2007).

Google Scholar

[3] Sempruch J., Strzelecki P., Experimental Verification of the Analytical Method for Estimated S-N Curve in Limited Fatigue Life, Materials Science Forum Vol. 726 (2012) pp.11-16, Switzeland, (2012).

DOI: 10.4028/www.scientific.net/msf.726.11

Google Scholar

[4] Szala J., Hypotheses on summation of fatigue failures (in Polish), ATR Publishers (Wydawnictwa Uczelniane ATR), Bydgoszcz, (1998).

Google Scholar

[5] Kacak M., Webster S., Janosch J. J., Ainsworth R. A., Koers R., FITNET, Fitness for Service Procedure – Final Draft MK 7, (2006).

Google Scholar

[6] Neimitz A., Dzioba I., Graba M., Okrajni J., Assessment of strength, life and operational safety of structural elements containing defects ( in Polish), Publishing House of Swietokrzyska Technical University (Wydawnictwo Politechniki Świętokrzyskiej), Kielce, (2008).

Google Scholar

[7] Boroński D., Cyclic material properties distribution in laser – welded joints, International Journal of Fatigue, vol. 28/4, (2006).

Google Scholar

[8] Boroński D., Hybrid method of strain and stress analysis in fatigue crack zone, Archive of Mechanical Engineering, 53, 206.

Google Scholar

[9] Hobbacher A., Recommendations for fatigue design of welded joints and components, IIW document XIII-1965-03/XV-1127-03, (2004).

DOI: 10.1007/978-3-319-23757-2_8

Google Scholar

[10] Bureau Veritas rules for steel ships classification – Fatigue check of structural details – Part B, Chapter 7, Section 4 – Edition, (2003).

Google Scholar

[11] Boronski, D, Soltysiak, R ; Giesko, T;  Marciniak, T; Lutowski, Z; Bujnowski, S, The Investigations of Fatigue Cracking of Laser Welded Joint With The Use of FatigueVIEW, System. Fracture and fatigue of materials and structures, Key Engineering Materials Volume: 598.

DOI: 10.4028/www.scientific.net/kem.598.26

Google Scholar

[12] Tomaszewski T., Sempruch J., Verification of the fatigue test method applied with the use of mini specimen. Key Engineering Materials. 598, (2014).

DOI: 10.4028/www.scientific.net/kem.598.243

Google Scholar

[13] Pejkowski Ł., Skibicki D., Sempruch J., High-Cycle Fatigue Behavior of Austenitic Steel and Pure Copper under Uniaxial, Proportional and Non-Proportional Loading, Strojniski vestnik-journal of mechanical engineering, Volume: 60, Issue: 9, (2013).

DOI: 10.5545/sv-jme.2013.1600

Google Scholar