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Fracture Toughness of Indian Structural Steel IS 2062
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The present decade has seen an important development in the field of welding viz., the application of the principles of fracture mechanics for analysing the fracture behaviour of welded joints. This is a direct result of the long-standing efforts made in characterising the influence of the weld defects like cracks, on the fracture behaviour of weldments. Probably the most important consequence of the development of various test procedures of fracture mechanics is the possibility of applying these quantitative principles to structural steels, with reasonably small specimens. In this respect, first attempt has been made to determine the fracture toughness parameters of one of the most widely used fusion-weldable quality structural steel, IS 2062. It is hoped that these parameters will help the designers and fabricators in welding industry to arrive at a fail-safe design and understand the consequences of defects that may be present in these joints.
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