Tests of local strains in steel laser - welded sandwich structure

• Autorzy: Boroński Dariusz , Szala Józef
• Języki publikacji: EN

Abstrakty

EN

This paper presents results of the tests of local strains in laser weld zone of steel sandwich structure, performed at the Department of Machine Design, University of Technology and Agriculture, Bydgoszcz, in cooperation with the Department of Ship and Offshore Structures Technology, Gdańsk University of Technology, within the frame of ASPIS EUREKA E!3074 project titled : „Application of steel sandwich panels into ship structural design”. Specific features of the tested structure make that in the weld zone both geometrical and structural notch appears simultaneously. The presented results may be helpful in further developing sandwich structures themselves and laser welding technique as well as their design methods as far as avoiding fatigue cracks is concerned.

Słowa kluczowe

EN

fatigue; laser welding; local strain distributions; laser grating interferometry; steel panel structures

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2006
• Tom: S 1
• Strony: 31--36
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Boroński Dariusz

• University of Technology and Agriculture, Bydgoszcz

autor

Szala Józef

• University of Technology and Agriculture, Bydgoszcz

Bibliografia

• 1. Radaj D.: Review of fatigue strength assessment of non-welded and welded structures based on local parameters. International Journal of Fatigue No.18/1996.
• 2. Rosochowicz K.: Problems of the fatigue cracking of ship hulls (in Polish). Shipbuilding & Shipping Publishing House (Okrętownictwo i Żegluga). Gdańsk, 2000.
• 2. Morrow J.D.: Fatigue Properties of Metals, Manual. Society of Automotive Engineers, ISTC Div.4, 1964.
• 3. Boroński D., Szala J.: Research on zones of fatigue crack initiation and propagation, by using LES laser grating extensometer (in Polish). Przegląd Mechaniczny No.7-8/2002.
• 5. Boroński D., Szala J.: Laser grating extensometer LES for fatigue full-field strain analysis. ECF 14 Fracture Mechanics Beyond 2000, EMAS, 2002.
• 6. Boroński D.: Cyclic material properties distribution in laserwelded joints. International Journal of Fatigue, Vol 28/4, 2006.
• 7. Boroński D.: Experimental analysis of strain distributions in fatigue crack zones (in Polish). ATR University Reports (Wydawnictwa Uczelniane ATR). Bydgoszcz, 2005.
• 8. Boroński D., Szala J.: Fatigue tests of laser-welded specimens of sandwich structure models (in Polish). BZ 8-2003 Report, ATR (University of Technology and Agriculture). Bydgoszcz, 2004.