Problems of welding in shipbuilding-strength of heterogeneous welded joints in microscopic scale

• Autorzy: Ranatowski E.
• Języki publikacji: EN

Abstrakty

EN

At first the modelIing rules requirements are characterised. Further, the theoretical, numerical and experimental instruments available for the weld microstructure and HAZ modelIing are presented. Beside, the strength analysis and assessment of the step of susceptibility of welded joints in microscopic scale is distinguished. Finally, the computer demonstration of crack progress by consist of hole formation, growth and coalescence is presented.

PL

W pierwszej kolejności określono wymagania dotyczące zasad modelowania. Metodologicznie bazowano na teoretycznych, numerycznych i eksperymentalnych narzędziach dostępnych do modelowania mikrostruktury spoin i SWC. Ponadto wykonano analizę wytrzymałości i ocenę stopnia uwrażliwienia połączeń spawanych w skali mikroskopowej. Końcowa część pracy dotyczy komputerowej wizualizacji procesu pękania poprzez formację otworów, ich wzrostu i łączenia.

• Wydawca: Polish Academy of Sciences - Branch in Gdańsk Marine Technology Committee of the Polish Academy of Sciences
• Czasopismo: Marine Technology Transactions. Technika Morska
• Rocznik: 2008
• Tom: Vol. 19
• Strony: 57--66
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Ranatowski E.

• University of Technology and Life Science, Mechanical Department 85-763 Bydgoszcz, St. Prof. S. Kaliskiego 7,

Bibliografia

• [l] Radaj D., Potential of numerical analysis of weld ability in the design process, IIW-Doc. X-1271-93.
• [2] David S. A., Babu S. S., Microstructure modelling in weld metal, [in:] Mathematical Modelling of Weld Phenomena 3, Edited by H. Cerjak, Book 650, The Institute of Materials, London 1997, 151 + 180.
• [3] Bhadeshia H., Models for the elementary mechanical properties of steel welds, [in:] Mathematical Modelling of Weld Phenomena 3, Edited by H. Cerjak,. Book 650, The Institute of Materials, London. 1997,229 + 282.
• [4] Ranatowski E., Remarks on the weldability problem of the ferritic steels, Advances in Materials Science, 2006, Vol. 6, 35 + 41.
• [5] Moran P. M., Shih C. F., Crack growth and cleavage in mismatched welds: a micromechanics study using a cell model, International Journal of Fracture, 1998, Vol. 92,153 + 174.
• [6] Broberg K. B., Computer demonstration of crack growth, International Journal of Fracture, 1990, Vol. 42, No. 3,277 + 285.
• [7] Ainsworth R. A. et al., Methods for including constraint effects within the SINTAP procedures, Engineering Fracture Mechanics, December 2000, Vol. 67, Issue 6, 563 + 571.
• [8] Ranatowski E., The influence of the constraint effect on the mechanical properties and weldability of the mismatched weld joints, Mechanical Modelling of Weld Phenomena 8, Edited by H. Cerjak et al., TU Graz, 2007.
• [9] Burstow M. c., Analysis of welded joints, SIRIUS, 1996.
• [10] Ranatowski E., Utility of computational welding mechanics in technology design, [in:] Developments in Mechanical Engineering, Ed. J. T. Cieśliński, University of Technology Publishers, Vol. 2, Chapter 12, Gdańsk 2008.