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- W2044765319 abstract "As industries are upgrading rapidly from a lower steel grade to higher ones it has become necessary to study the effect of changing from lower steel grades to higher grades. This paper reports on fatigue life and behaviour, economic implications and material composition of these higher strength steels (HSS) as compared to the conventional grades. Three grades are commercially available in South Africa: 300W, 350W and 460W. These different steel grades (conventional and HSS) with the same moment capacities were subjected to constant dynamic stresses and the fatigue crack growth of the overloading and unloading were monitored and compared with each other. The influences of the overloading and unloading made standard grades perform better under repeated loading than the HSS, since HSS have been proved to have poor ductility, resulting in a lower number of cycles to failure. An 85% increase in material cost was generated as HSS replaces the conventional lower steel grades. A reduction in the number of cycles to failure in HSS was over 500%." @default.
- W2044765319 created "2016-06-24" @default.
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- W2044765319 date "2007-05-24" @default.
- W2044765319 modified "2023-09-23" @default.
- W2044765319 title "Structural, economic and material comparison of various steel grades under dynamic/fatigue loading" @default.
- W2044765319 doi "https://doi.org/10.2495/mc070261" @default.
- W2044765319 hasPublicationYear "2007" @default.
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