ALL libraries (COBIB.SI union bibliographic/catalogue database)
  • Investigation of crack path near cold expanded hole [Elektronski vir]
    Zobec, Peter, 1990- ; Klemenc, Jernej
    In a structure, holes are concentrators of stresses. When the structure is subjected to a cyclic load, the holes should be carefully designed to prevent the occurrence of fatigue cracks. The now ... well-accepted technique of cold expanding holes mitigates the effect of stress concentration by introducing an area of compressive stress near the hole surface. The resulting compressive residual stress is balanced by an area of tensile stress, which is detrimental from a fatigue standpoint. In this study, we do not focus on the formation of fatigue cracks at the surface of the cold expanded hole, but investigate the path of the fatigue crack approaching a region with such a hole. Using a special algorithm to simulate fatigue crack growth, we show that the cold expanded hole attracts the growing crack. This insight sheds new light on the beneficial effects of cold expanded holes.
    Source: 2nd Mediterranean Conference on Fracture and Structural Integrity [Elektronski vir] : MedFract2 : February 14-16, 2022, Catania (Italy) & Web (Vol. 41, 2022, str. 208-214)
    Type of material - conference contribution
    Publish date - 2022
    Language - english
    COBISS.SI-ID - 111051523

    Link(s):

    https://www.sciencedirect.com/science/article/pii/S2452321622004814
    DOI

Shelf entry