Analysis of the heterogeneous weld joints in aspect of fracture mechanics

• Autorzy: Ratanowski E.
• Języki publikacji: EN

Abstrakty

EN

This paper will discuss the issues relating to the effect of constraint on the fracture safe design. At first the attention is focused on the relation between the microstructure and selected mechanical properties. This aspect is illustrated with presenting a brief consideration of the constraint effect in relation: microstructure - mechanical properties in microscopic scale. The same problem is account in macroscopic scale of the heterogeneous weld joints. After formulating a simplified model of mismatched weld joints a concise review of stress was made at interfaces between zones (W) and (B). Conclusions from above analysis form a constraint parameters un / ov R K which were used to an assessment of the fracture parameters as ratio of driving forces un / ov R d by modified of the classical solution presented by Engineering Treatment Model (E-T-M).

Słowa kluczowe

EN

material microstructure; constraint effect; fracture parameters

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2011
• Tom: Vol. 6, no 3
• Strony: 245--252
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Ratanowski E.

• University of Technology and Life Sciences, Faculty of Mechanical Engineering, Al. Prof. S. Kaliskiego 7, Pl - 85-789 Bydgoszcz, Poland,

Bibliografia

• [1] Bhadeshia H.K.D.H., Mathematical Modelling of Weld Phenomena 3, Cambridge, UK, pp. 249 ÷ 284, (1997).
• [2] Ranatowski E., Influence of the constraint effect on fracture resistance of mismatched weld joints, Mechanism and Mechanics of Damage and Failure, ECF-11, United Kingdom, EMAS, Vol.3, pp. 2061 ÷ 2066, ISBN 0947817 - 93X, (1996).
• [3] Ranatowski E., Some remarks on stress state at interface of the mismatched weld joints, Mis - Matching of Interfaces and Welds. Editors: K.-H. Schwalbe, M. Koçak, GKSS Research Center Publication, Geesthacht, FRG, ISBN 3-00-001951-0, pp. 185 - 196, Germany, (1997).
• [4] Schwalbe K.-H., Effect of weld metal mis-match on toughness requirements: some simple analytical considerations using the Engineering Treatment Model (ETM), International Journal of Fracture, pp. 257 ÷ 277, Nr 56, (2005).