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2 Polish Maritime Research

2 2006

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Tests of local strains in steel laser - welded sandwich structure

Boroński Dariusz, Szala Józef

Polish Maritime Research

2006

S 1

31-36

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.

Fatigue life tests of steel laser-welded sandwich structures

Boroński D., Szala J.

Polish Maritime Research

2006

S 1

27-30

This paper presents results of the fatigue life tests of elements of steel laser-welded 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”. The obtained information on fatigue features of various specimens, the so called elementary structures of sandwich panels, can make it possible to formulate design and manufacturing recommendations for application of such structures in shipbuilding. An important result of the performed tests is the extended range of fatigue strength data for laser-welded joints.