Ziel
For structural steels, laser welding of plates up to 10mm represents technologically the state of the art. However, in view of the great productivity gains, many industries are interested in laser welding of plates up to 25 mm thick. In parallel, safety relevant design characterisation of laser welds are needed and conventional design parameters cause problems which are due to crack deviation, unavoidable welding defects and to mismatch effect. In order to overcome these problems, the research will examine the true fracture and deformation behaviour of laser welded plates of structural steels with a strength range from 235 MPa up to 890 MPa and thickness comprised between 15 and 25 mm. The most promising welding technology for the investigation of the fracture and the deformation behaviour with large-scale wide plate tests will be chosen from test welds with different combined laser welding technologies. A structural safety concept will be derived in combination with small-scale fracture mechanics and fatigue tests.
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CSC - Cost-sharing contractsKoordinator
NW1 5JD LONDON
Vereinigtes Königreich