Mesoscale fatigue failure of welded joints of low-alloy steel |
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| Authors: | V. S. Pleshanov V. V. Kibitkin A. S. Maslovsky O. N. Lavrov V. E. Panin |
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| Affiliation: | Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, pr.Akademicheskii, 2/1, 634021, Tomsk, Russian Federation |
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| Abstract: | The fatigue failure kinetics for welded joints of low-alloyed steel is investigated by analyzing the displacement vector field under high-cyclic loading. Failure accumulation in the heat-affected zone at the mesoscale is found to possess a multi-stage character that is associated with the formation and evolution of mesostructure deformation and fragmentation. Identified are the pertinent parameters that described the mechanical state of welded joints under load. |
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