THE ESTIMATION OF THE THEORETICAL STRESS CONCENTRATION FACTOR IN WELDED THIN-WALLED STRUCTURES BY THE CALCULATION OF STRESS MACRO- AND MICROCONCENTRATION
Keywords:
welded assembly, theoretical stress concentration factor, weld seam, finite element method
Abstract
The estimation of the theoretical stress concentration factor in welded thin-walled ship structures by the multiplication of stress macro- and microconcentration factors was investigated considering the beams crossing flanges welded assembly and the cruciform welded joint. The practical guidelines for the estimation of the stress concentration factor in welded assemblies by the mentioned multiplication were developed based on the obtained results. The comparative analysis of the different variants of the approximate formulae for the calculation of the stress concentration factor caused by the presence of weld seam was carried out.
References
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3. Petinov S. V. Osnovih inzhenernihkh raschetov ustalosti sudovihkh konstrukciyj [Tekst] / S. V. Petinov. – L. : Sudostroenie, 1990. – 224 s.
4. Turmov G. P. Priblizhennaya ocenka vihnoslivosti svarnihkh soedineniyj [Tekst] / G. P. Trumov // Sudostroenie i sudoremont. – Vladivostok : Izd-vo DVPI, 1980. – S. 129-136.
5. Fricke, W. Guideline for the Fatigue Assessment by Notch Stress Analysis for Welded Structures [Text] / W. Fricke // International Institute of Welding. – IIW-Doc. XIII- 2240r2-08/XV-1289r2-08. – Hamburg University of Technology Ship Structural Design and Analysis, July 2010. – 144 p.
6. Makhnenko V. I. Raschet koehfficientov koncentracii napryazheniyj v svarnihkh soedineniyakh so stihkovihmi i uglovihmi shvami [Tekst] / V. I. Makhnenko, R. Yu. Mosenkis // Avtomaticheskaya svarka. – 1985. – №8. – S. 7-18.
7. Caccese V. Effect of weld geometric profile on fatigue life of cruciform welds made by laser/GMAW processes [Text] / V. Caccese et al. // Marine Structures. – Elsevier, January 2006. – vol. 19 – issue 1. – pp. 1-22.
8. Skorupa M. Fatigue life prediction of cruciform joints failing at the weld toe [Text] / M. Skorupa // Supplement to the welding journal. – August 1992. P. 269-275.
9. Niemi E. Stress Determination for Fatigue Analysis of Welded Components [Text] / E. Niemi. – IISIIIW-1221-93 (ex. doc. XIII-1458-92, XV-797-92). – Abington : Abington Publ., 1995. – 69 p.
10. GOST 5264-80. Ruchnaya dugovaya svarka. Soedineniya svarnihe. Osnovnihe tipih, konstruktivnihe ehlementih i razmerih – M. : Standartiform, 2005. – 35 s.
11. Korostihlyov L. I. Analiz velichin radiusov i uglov naklona profilya svarnihkh shvov v meste perekhoda ot osnovnogo metalla k metallu shva [Tekst] / L. I. Korostihlyov, D. Yu. Litvinenko // Materіali vseukraїnsjkoї naukovo-tekhnіchnoї konferencії z mіzhnarodnoyu uchastyu «Suchasnі tekhnologії proektuvannya, pobudovi, ekspluatacії і remontu suden, morsjkikh tekhnіchnikh zasobіv і іnzhenernikh sporud». – Mikolaїv : NUK, 2015. – S. 87-89.
12. Lawrence, F. V., Predicting the Fatigue Resistance of Welds [Text] / F. V. Lawrence, N. J. Ho, P. K. Mazumdar // Fracture Control Program Report No. 36. – College of Engineering, University of Illinois at Urbana-Champaign, October 1980. – 47 p.
Published
2015-12-26
Section
ENGINEERING SCIENCES
