engleski

Fracture mechanics approach to heterogeneous welded structures

A large data bank of information related to welded structural steels has been used to assess the influence of weld metal strength mis-matching on the fracture resistance of these weldments, based on Charpy impact test results, crack tip opening displacement CTOD values and wide plate results, along with supporting welding details, metallography and mechanical properties. This paper discusses some aspects of fracture behaviour of welded structures with different levels of strength mis-match. However, generally accepted conditions for the strength mismatched welded joints of high strength steel are not yet clearly defined.

fracture behaviour; welded structures; strength mismatch; weldment performance

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