Accession Number : AD0456328


Title :   LOW-CYCLE FATIGUE OF EXPERIMENTAL HY-130/150 AND HY-180/210 STEELS AND WELDMENTS,


Corporate Author : UNITED STATES STEEL CORP MONROEVILLE PA APPLIED RESEARCH LAB


Personal Author(s) : Rolfe,S T ; Haak,R P ; Imhof,E J ,Jr


Report Date : 01 Dec 1964


Pagination or Media Count : 1


Abstract : Because submarine hulls are cyclically loaded at high stresses, the fatigue behavior of experimental submarine-hull steels is important in evaluating their structural suitability. Therefore, the Applied Research Laboratory determined the low-cycle high-strain fatigue properties of the 5Ni-Cr-Mo-V experimental HY-130/150 steel, the 12Ni-5Cr-3Mo experimental HY-180/210 steel, and HY-80 steel, the current submarine-hull steel. In addition, the fatigue behavior of weldments of the 5Ni-Cr-Mo-V and HY-80 steels was determined, and the fatigue data for the unwelded specimens were analyzed. The results showed that in the cycle-life range of primary interest, the fatigue strength (strain range to cause failure) of the 5Ni-Cr-Mo-V and 12 Ni-5Cr-3Mo steels was significantly higher than that of HY-80 steel. However, to insure a corresponding resistance to failure by fatigue, the fatigue strength of submarine-hull materials should be proportional to the yield strength of the material. (Author)


Descriptors :   *METAL PLATES , FATIGUE(MECHANICS) , STEEL , WELDS , STRAIN(MECHANICS) , MECHANICAL PROPERTIES , ELASTIC PROPERTIES , PLASTIC PROPERTIES , EXPERIMENTAL DATA , SHIP PLATES , SHIP HULLS , SUBMARINE HULLS , STRUCTURAL PROPERTIES


Distribution Statement : APPROVED FOR PUBLIC RELEASE